./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.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.7.ufo.UNBOUNDED.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 50e151318da71693ecfd101451d51852511de48fd25109c1f84fed946653f0cd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:04:25,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:04:25,913 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:04:25,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:04:25,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:04:25,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:04:25,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:04:25,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:04:25,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:04:25,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:04:25,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:04:25,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:04:25,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:04:25,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:04:25,940 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:04:25,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:04:25,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:04:25,941 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:04:25,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:04:25,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:04:25,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:04:25,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:04:25,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:04:25,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:04:25,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:04:25,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:04:25,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:04:25,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:04:25,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:04:25,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:04:25,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:04:25,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:04:25,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:04:25,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:04:25,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:04:25,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:04:25,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:04:25,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:04:25,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:04:25,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:04:25,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:04:25,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:04:25,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50e151318da71693ecfd101451d51852511de48fd25109c1f84fed946653f0cd [2024-11-10 00:04:26,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:04:26,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:04:26,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:04:26,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:04:26,263 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:04:26,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-10 00:04:27,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:04:28,130 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:04:28,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-10 00:04:28,144 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54091d4b/030bac126fe048afa63d87f4f62cbcd5/FLAG276cf09f4 [2024-11-10 00:04:28,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f54091d4b/030bac126fe048afa63d87f4f62cbcd5 [2024-11-10 00:04:28,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:04:28,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:04:28,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:04:28,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:04:28,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:04:28,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b73a9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28, skipping insertion in model container [2024-11-10 00:04:28,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:04:28,507 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.7.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7667,7680] [2024-11-10 00:04:28,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:04:28,591 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:04:28,658 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.7.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[7667,7680] [2024-11-10 00:04:28,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:04:28,708 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:04:28,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28 WrapperNode [2024-11-10 00:04:28,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:04:28,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:04:28,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:04:28,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:04:28,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,770 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 624 [2024-11-10 00:04:28,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:04:28,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:04:28,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:04:28,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:04:28,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,790 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,811 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 00:04:28,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,825 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:04:28,836 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:04:28,836 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:04:28,836 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:04:28,838 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (1/1) ... [2024-11-10 00:04:28,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:04:28,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:04:28,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 00:04:28,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 00:04:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:04:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:04:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:04:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:04:29,097 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:04:29,101 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:04:29,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L680: havoc main_~node2____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L730: havoc main_~node1____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,780 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L500: havoc main_~node6____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L386: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:04:29,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L386: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:04:29,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L386: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:04:29,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L386: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:04:29,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L386: havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2024-11-10 00:04:29,781 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L635: havoc main_~node3____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L455: havoc main_~node7____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L342: havoc main_~node7__m7~0#1;havoc main_~node6__m6~0#1; [2024-11-10 00:04:29,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L342: havoc main_~node7__m7~0#1;havoc main_~node6__m6~0#1; [2024-11-10 00:04:29,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L342: havoc main_~node7__m7~0#1;havoc main_~node6__m6~0#1; [2024-11-10 00:04:29,782 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L590: havoc main_~node4____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L312: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:04:29,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L312: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:04:29,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L312: havoc main_~node5__m5~0#1;havoc main_~node4__m4~0#1; [2024-11-10 00:04:29,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,783 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,784 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,785 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,786 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,787 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,788 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,789 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L247: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L545: havoc main_~node5____CPAchecker_TMP_0~0#1; [2024-11-10 00:04:29,790 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:04:29,791 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:04:29,791 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: havoc main_~node3__m3~0#1;havoc main_~node2__m2~0#1; [2024-11-10 00:04:29,828 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-10 00:04:29,829 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:04:29,848 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:04:29,849 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:04:29,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:04:29 BoogieIcfgContainer [2024-11-10 00:04:29,850 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:04:29,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:04:29,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:04:29,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:04:29,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:04:28" (1/3) ... [2024-11-10 00:04:29,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec682a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:29, skipping insertion in model container [2024-11-10 00:04:29,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:04:28" (2/3) ... [2024-11-10 00:04:29,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cec682a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:04:29, skipping insertion in model container [2024-11-10 00:04:29,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:04:29" (3/3) ... [2024-11-10 00:04:29,858 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-10 00:04:29,871 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:04:29,872 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:04:29,938 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:04:29,944 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;@4f1b0430, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:04:29,944 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:04:29,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 140 states have (on average 1.7214285714285715) internal successors, (241), 141 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-10 00:04:29,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:29,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:29,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:29,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:29,964 INFO L85 PathProgramCache]: Analyzing trace with hash 350138721, now seen corresponding path program 1 times [2024-11-10 00:04:29,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:29,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506141156] [2024-11-10 00:04:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:29,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:30,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:30,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506141156] [2024-11-10 00:04:30,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506141156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:30,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:30,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:30,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466662231] [2024-11-10 00:04:30,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:30,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:30,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:30,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:30,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:30,580 INFO L87 Difference]: Start difference. First operand has 142 states, 140 states have (on average 1.7214285714285715) internal successors, (241), 141 states have internal predecessors, (241), 0 states have call successors, (0), 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 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:30,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:30,664 INFO L93 Difference]: Finished difference Result 310 states and 500 transitions. [2024-11-10 00:04:30,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:30,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-10 00:04:30,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:30,678 INFO L225 Difference]: With dead ends: 310 [2024-11-10 00:04:30,678 INFO L226 Difference]: Without dead ends: 215 [2024-11-10 00:04:30,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:30,684 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 162 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 480 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 [2024-11-10 00:04:30,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 480 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:30,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-10 00:04:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2024-11-10 00:04:30,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 212 states have (on average 1.4339622641509433) internal successors, (304), 212 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:30,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 304 transitions. [2024-11-10 00:04:30,751 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 304 transitions. Word has length 87 [2024-11-10 00:04:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:30,752 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 304 transitions. [2024-11-10 00:04:30,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:30,753 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 304 transitions. [2024-11-10 00:04:30,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-10 00:04:30,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:30,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:30,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:04:30,757 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:30,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:30,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1793554748, now seen corresponding path program 1 times [2024-11-10 00:04:30,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:30,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706875470] [2024-11-10 00:04:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:30,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:30,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:30,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706875470] [2024-11-10 00:04:30,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706875470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:30,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:30,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:30,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610102681] [2024-11-10 00:04:30,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:30,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:30,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:30,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:30,954 INFO L87 Difference]: Start difference. First operand 213 states and 304 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:31,011 INFO L93 Difference]: Finished difference Result 517 states and 780 transitions. [2024-11-10 00:04:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:31,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-10 00:04:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:31,014 INFO L225 Difference]: With dead ends: 517 [2024-11-10 00:04:31,014 INFO L226 Difference]: Without dead ends: 357 [2024-11-10 00:04:31,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,020 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 113 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 411 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 [2024-11-10 00:04:31,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 411 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-10 00:04:31,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 355. [2024-11-10 00:04:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 1.4858757062146892) internal successors, (526), 354 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 526 transitions. [2024-11-10 00:04:31,050 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 526 transitions. Word has length 88 [2024-11-10 00:04:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:31,051 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 526 transitions. [2024-11-10 00:04:31,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 526 transitions. [2024-11-10 00:04:31,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 00:04:31,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:31,057 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:31,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:04:31,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:31,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:31,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1750931823, now seen corresponding path program 1 times [2024-11-10 00:04:31,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:31,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81012477] [2024-11-10 00:04:31,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:31,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:31,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:31,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:31,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81012477] [2024-11-10 00:04:31,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81012477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:31,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:31,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:31,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603131768] [2024-11-10 00:04:31,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:31,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:31,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,259 INFO L87 Difference]: Start difference. First operand 355 states and 526 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:31,287 INFO L93 Difference]: Finished difference Result 927 states and 1420 transitions. [2024-11-10 00:04:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:31,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-10 00:04:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:31,293 INFO L225 Difference]: With dead ends: 927 [2024-11-10 00:04:31,293 INFO L226 Difference]: Without dead ends: 625 [2024-11-10 00:04:31,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,299 INFO L432 NwaCegarLoop]: 267 mSDtfsCounter, 108 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 407 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 [2024-11-10 00:04:31,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 407 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:31,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2024-11-10 00:04:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 623. [2024-11-10 00:04:31,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 622 states have (on average 1.5144694533762058) internal successors, (942), 622 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 942 transitions. [2024-11-10 00:04:31,333 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 942 transitions. Word has length 89 [2024-11-10 00:04:31,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:31,334 INFO L471 AbstractCegarLoop]: Abstraction has 623 states and 942 transitions. [2024-11-10 00:04:31,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,334 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 942 transitions. [2024-11-10 00:04:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-10 00:04:31,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:31,336 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:31,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:04:31,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:31,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:31,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1554384359, now seen corresponding path program 1 times [2024-11-10 00:04:31,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:31,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725659975] [2024-11-10 00:04:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:31,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:31,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:31,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725659975] [2024-11-10 00:04:31,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725659975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:31,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:31,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:31,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039488039] [2024-11-10 00:04:31,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:31,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:31,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:31,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:31,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,485 INFO L87 Difference]: Start difference. First operand 623 states and 942 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:31,522 INFO L93 Difference]: Finished difference Result 1699 states and 2616 transitions. [2024-11-10 00:04:31,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:31,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-10 00:04:31,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:31,530 INFO L225 Difference]: With dead ends: 1699 [2024-11-10 00:04:31,530 INFO L226 Difference]: Without dead ends: 1129 [2024-11-10 00:04:31,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,533 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 103 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 403 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 [2024-11-10 00:04:31,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 403 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-11-10 00:04:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1127. [2024-11-10 00:04:31,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.5257548845470692) internal successors, (1718), 1126 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1718 transitions. [2024-11-10 00:04:31,618 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1718 transitions. Word has length 90 [2024-11-10 00:04:31,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:31,619 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1718 transitions. [2024-11-10 00:04:31,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1718 transitions. [2024-11-10 00:04:31,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 00:04:31,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:31,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:31,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:04:31,625 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:31,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:31,626 INFO L85 PathProgramCache]: Analyzing trace with hash 692016510, now seen corresponding path program 1 times [2024-11-10 00:04:31,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:31,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370250126] [2024-11-10 00:04:31,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:31,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:31,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370250126] [2024-11-10 00:04:31,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370250126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:31,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:31,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:31,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990292056] [2024-11-10 00:04:31,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:31,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:31,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:31,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:31,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,729 INFO L87 Difference]: Start difference. First operand 1127 states and 1718 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:31,762 INFO L93 Difference]: Finished difference Result 3147 states and 4840 transitions. [2024-11-10 00:04:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:31,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-10 00:04:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:31,771 INFO L225 Difference]: With dead ends: 3147 [2024-11-10 00:04:31,772 INFO L226 Difference]: Without dead ends: 2073 [2024-11-10 00:04:31,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,777 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 98 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 399 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 [2024-11-10 00:04:31,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 399 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:31,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2024-11-10 00:04:31,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2071. [2024-11-10 00:04:31,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2071 states, 2070 states have (on average 1.5256038647342995) internal successors, (3158), 2070 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2071 states to 2071 states and 3158 transitions. [2024-11-10 00:04:31,834 INFO L78 Accepts]: Start accepts. Automaton has 2071 states and 3158 transitions. Word has length 91 [2024-11-10 00:04:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:31,835 INFO L471 AbstractCegarLoop]: Abstraction has 2071 states and 3158 transitions. [2024-11-10 00:04:31,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2071 states and 3158 transitions. [2024-11-10 00:04:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 00:04:31,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:31,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:31,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:04:31,838 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:31,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:31,838 INFO L85 PathProgramCache]: Analyzing trace with hash -401193039, now seen corresponding path program 1 times [2024-11-10 00:04:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:31,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591374411] [2024-11-10 00:04:31,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:31,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:31,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:31,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591374411] [2024-11-10 00:04:31,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591374411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:31,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:31,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:31,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132455716] [2024-11-10 00:04:31,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:31,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:31,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:31,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:31,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:31,969 INFO L87 Difference]: Start difference. First operand 2071 states and 3158 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:32,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:32,010 INFO L93 Difference]: Finished difference Result 5851 states and 8952 transitions. [2024-11-10 00:04:32,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:32,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-10 00:04:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:32,027 INFO L225 Difference]: With dead ends: 5851 [2024-11-10 00:04:32,029 INFO L226 Difference]: Without dead ends: 3833 [2024-11-10 00:04:32,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:32,036 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 93 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 395 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 [2024-11-10 00:04:32,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 395 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2024-11-10 00:04:32,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3831. [2024-11-10 00:04:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3831 states, 3830 states have (on average 1.5180156657963446) internal successors, (5814), 3830 states have internal predecessors, (5814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5814 transitions. [2024-11-10 00:04:32,153 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5814 transitions. Word has length 92 [2024-11-10 00:04:32,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:32,153 INFO L471 AbstractCegarLoop]: Abstraction has 3831 states and 5814 transitions. [2024-11-10 00:04:32,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5814 transitions. [2024-11-10 00:04:32,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 00:04:32,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:32,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:32,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:04:32,157 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:32,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:32,158 INFO L85 PathProgramCache]: Analyzing trace with hash -2061622132, now seen corresponding path program 1 times [2024-11-10 00:04:32,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:32,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47727287] [2024-11-10 00:04:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:32,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:32,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:32,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47727287] [2024-11-10 00:04:32,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47727287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:32,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:32,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:32,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452254555] [2024-11-10 00:04:32,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:32,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:32,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:32,460 INFO L87 Difference]: Start difference. First operand 3831 states and 5814 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-11-10 00:04:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:33,203 INFO L93 Difference]: Finished difference Result 56723 states and 86468 transitions. [2024-11-10 00:04:33,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 00:04:33,203 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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 93 [2024-11-10 00:04:33,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:33,363 INFO L225 Difference]: With dead ends: 56723 [2024-11-10 00:04:33,364 INFO L226 Difference]: Without dead ends: 52945 [2024-11-10 00:04:33,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-10 00:04:33,397 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1962 mSDsluCounter, 5694 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1962 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:33,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1962 Valid, 5876 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:04:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52945 states. [2024-11-10 00:04:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52945 to 7607. [2024-11-10 00:04:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7607 states, 7606 states have (on average 1.5048645805942678) internal successors, (11446), 7606 states have internal predecessors, (11446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7607 states to 7607 states and 11446 transitions. [2024-11-10 00:04:34,123 INFO L78 Accepts]: Start accepts. Automaton has 7607 states and 11446 transitions. Word has length 93 [2024-11-10 00:04:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:34,124 INFO L471 AbstractCegarLoop]: Abstraction has 7607 states and 11446 transitions. [2024-11-10 00:04:34,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-11-10 00:04:34,127 INFO L276 IsEmpty]: Start isEmpty. Operand 7607 states and 11446 transitions. [2024-11-10 00:04:34,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 00:04:34,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:34,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:34,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:04:34,128 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:34,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:34,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1665169886, now seen corresponding path program 1 times [2024-11-10 00:04:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496537836] [2024-11-10 00:04:34,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:34,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:34,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:34,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496537836] [2024-11-10 00:04:34,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496537836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:34,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:34,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:34,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423184163] [2024-11-10 00:04:34,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:34,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:34,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:34,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:34,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:34,670 INFO L87 Difference]: Start difference. First operand 7607 states and 11446 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:35,094 INFO L93 Difference]: Finished difference Result 15163 states and 22840 transitions. [2024-11-10 00:04:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:04:35,095 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-10 00:04:35,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:35,111 INFO L225 Difference]: With dead ends: 15163 [2024-11-10 00:04:35,112 INFO L226 Difference]: Without dead ends: 7609 [2024-11-10 00:04:35,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:04:35,124 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 230 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:35,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1021 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:04:35,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7609 states. [2024-11-10 00:04:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7609 to 7607. [2024-11-10 00:04:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7607 states, 7606 states have (on average 1.4964501709176965) internal successors, (11382), 7606 states have internal predecessors, (11382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7607 states to 7607 states and 11382 transitions. [2024-11-10 00:04:35,289 INFO L78 Accepts]: Start accepts. Automaton has 7607 states and 11382 transitions. Word has length 96 [2024-11-10 00:04:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:35,289 INFO L471 AbstractCegarLoop]: Abstraction has 7607 states and 11382 transitions. [2024-11-10 00:04:35,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 7607 states and 11382 transitions. [2024-11-10 00:04:35,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-10 00:04:35,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:35,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:35,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:04:35,291 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:35,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1404657066, now seen corresponding path program 1 times [2024-11-10 00:04:35,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:35,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157619257] [2024-11-10 00:04:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:35,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157619257] [2024-11-10 00:04:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157619257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:35,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:35,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:35,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508693295] [2024-11-10 00:04:35,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:35,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:35,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:35,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:35,384 INFO L87 Difference]: Start difference. First operand 7607 states and 11382 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:35,452 INFO L93 Difference]: Finished difference Result 21435 states and 31992 transitions. [2024-11-10 00:04:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:35,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-10 00:04:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:35,487 INFO L225 Difference]: With dead ends: 21435 [2024-11-10 00:04:35,488 INFO L226 Difference]: Without dead ends: 13881 [2024-11-10 00:04:35,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:35,505 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 120 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 427 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 [2024-11-10 00:04:35,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 427 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:35,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13881 states. [2024-11-10 00:04:35,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13881 to 13879. [2024-11-10 00:04:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13879 states, 13878 states have (on average 1.4796080126819426) internal successors, (20534), 13878 states have internal predecessors, (20534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13879 states to 13879 states and 20534 transitions. [2024-11-10 00:04:35,828 INFO L78 Accepts]: Start accepts. Automaton has 13879 states and 20534 transitions. Word has length 96 [2024-11-10 00:04:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:35,829 INFO L471 AbstractCegarLoop]: Abstraction has 13879 states and 20534 transitions. [2024-11-10 00:04:35,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 13879 states and 20534 transitions. [2024-11-10 00:04:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-10 00:04:35,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:35,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:35,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:04:35,831 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:35,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1845695973, now seen corresponding path program 1 times [2024-11-10 00:04:35,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:35,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963784014] [2024-11-10 00:04:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:35,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:35,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963784014] [2024-11-10 00:04:35,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963784014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:35,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:35,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:04:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058196619] [2024-11-10 00:04:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:35,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:04:35,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:35,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:04:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:35,973 INFO L87 Difference]: Start difference. First operand 13879 states and 20534 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) [2024-11-10 00:04:36,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:36,192 INFO L93 Difference]: Finished difference Result 34429 states and 51002 transitions. [2024-11-10 00:04:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:04:36,193 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 [2024-11-10 00:04:36,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:36,228 INFO L225 Difference]: With dead ends: 34429 [2024-11-10 00:04:36,228 INFO L226 Difference]: Without dead ends: 20603 [2024-11-10 00:04:36,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:04:36,247 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 83 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:36,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 308 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:36,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2024-11-10 00:04:36,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 20473. [2024-11-10 00:04:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20473 states, 20472 states have (on average 1.4689331770222742) internal successors, (30072), 20472 states have internal predecessors, (30072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20473 states to 20473 states and 30072 transitions. [2024-11-10 00:04:36,660 INFO L78 Accepts]: Start accepts. Automaton has 20473 states and 30072 transitions. Word has length 98 [2024-11-10 00:04:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:36,660 INFO L471 AbstractCegarLoop]: Abstraction has 20473 states and 30072 transitions. [2024-11-10 00:04:36,661 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) [2024-11-10 00:04:36,661 INFO L276 IsEmpty]: Start isEmpty. Operand 20473 states and 30072 transitions. [2024-11-10 00:04:36,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-10 00:04:36,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:36,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:36,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:04:36,662 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:36,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:36,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1973501417, now seen corresponding path program 1 times [2024-11-10 00:04:36,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296639081] [2024-11-10 00:04:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:36,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:36,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:36,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:36,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296639081] [2024-11-10 00:04:36,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296639081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:36,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:36,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 00:04:36,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855874110] [2024-11-10 00:04:36,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:36,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:04:36,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:36,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:04:36,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:04:36,828 INFO L87 Difference]: Start difference. First operand 20473 states and 30072 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:37,123 INFO L93 Difference]: Finished difference Result 40891 states and 60089 transitions. [2024-11-10 00:04:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:04:37,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-10 00:04:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:37,164 INFO L225 Difference]: With dead ends: 40891 [2024-11-10 00:04:37,165 INFO L226 Difference]: Without dead ends: 20473 [2024-11-10 00:04:37,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:04:37,190 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 439 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:37,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 153 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:04:37,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20473 states. [2024-11-10 00:04:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20473 to 20473. [2024-11-10 00:04:37,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20473 states, 20472 states have (on average 1.4595545134818289) internal successors, (29880), 20472 states have internal predecessors, (29880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:37,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20473 states to 20473 states and 29880 transitions. [2024-11-10 00:04:37,592 INFO L78 Accepts]: Start accepts. Automaton has 20473 states and 29880 transitions. Word has length 99 [2024-11-10 00:04:37,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:37,592 INFO L471 AbstractCegarLoop]: Abstraction has 20473 states and 29880 transitions. [2024-11-10 00:04:37,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 20473 states and 29880 transitions. [2024-11-10 00:04:37,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-10 00:04:37,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:37,594 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:37,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:04:37,594 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:37,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:37,595 INFO L85 PathProgramCache]: Analyzing trace with hash -101056330, now seen corresponding path program 1 times [2024-11-10 00:04:37,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:37,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999073388] [2024-11-10 00:04:37,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:37,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:04:38,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999073388] [2024-11-10 00:04:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999073388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:38,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:38,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:04:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892317608] [2024-11-10 00:04:38,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:38,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:04:38,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:38,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:04:38,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:04:38,162 INFO L87 Difference]: Start difference. First operand 20473 states and 29880 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:38,242 INFO L93 Difference]: Finished difference Result 21499 states and 31161 transitions. [2024-11-10 00:04:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:04:38,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-10 00:04:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:38,276 INFO L225 Difference]: With dead ends: 21499 [2024-11-10 00:04:38,277 INFO L226 Difference]: Without dead ends: 21497 [2024-11-10 00:04:38,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:04:38,288 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 717 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 [2024-11-10 00:04:38,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 717 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:04:38,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21497 states. [2024-11-10 00:04:38,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21497 to 21497. [2024-11-10 00:04:38,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21497 states, 21496 states have (on average 1.4346855228879791) internal successors, (30840), 21496 states have internal predecessors, (30840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21497 states to 21497 states and 30840 transitions. [2024-11-10 00:04:38,733 INFO L78 Accepts]: Start accepts. Automaton has 21497 states and 30840 transitions. Word has length 99 [2024-11-10 00:04:38,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:38,733 INFO L471 AbstractCegarLoop]: Abstraction has 21497 states and 30840 transitions. [2024-11-10 00:04:38,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:38,734 INFO L276 IsEmpty]: Start isEmpty. Operand 21497 states and 30840 transitions. [2024-11-10 00:04:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:04:38,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:38,742 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:38,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:04:38,742 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:38,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:38,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1699880118, now seen corresponding path program 1 times [2024-11-10 00:04:38,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:38,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049829658] [2024-11-10 00:04:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:38,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 00:04:39,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:39,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049829658] [2024-11-10 00:04:39,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049829658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:39,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:39,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:39,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192862511] [2024-11-10 00:04:39,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:39,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:39,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:39,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:39,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:39,071 INFO L87 Difference]: Start difference. First operand 21497 states and 30840 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:39,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:39,772 INFO L93 Difference]: Finished difference Result 175817 states and 252128 transitions. [2024-11-10 00:04:39,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:04:39,772 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 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 134 [2024-11-10 00:04:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:40,071 INFO L225 Difference]: With dead ends: 175817 [2024-11-10 00:04:40,071 INFO L226 Difference]: Without dead ends: 154375 [2024-11-10 00:04:40,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:04:40,150 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1643 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:40,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 2617 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:04:40,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154375 states. [2024-11-10 00:04:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154375 to 42937. [2024-11-10 00:04:42,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42937 states, 42936 states have (on average 1.4307806968511272) internal successors, (61432), 42936 states have internal predecessors, (61432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42937 states to 42937 states and 61432 transitions. [2024-11-10 00:04:42,103 INFO L78 Accepts]: Start accepts. Automaton has 42937 states and 61432 transitions. Word has length 134 [2024-11-10 00:04:42,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:42,106 INFO L471 AbstractCegarLoop]: Abstraction has 42937 states and 61432 transitions. [2024-11-10 00:04:42,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:42,107 INFO L276 IsEmpty]: Start isEmpty. Operand 42937 states and 61432 transitions. [2024-11-10 00:04:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:04:42,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:42,123 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:42,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:04:42,124 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:42,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:42,125 INFO L85 PathProgramCache]: Analyzing trace with hash 331958519, now seen corresponding path program 1 times [2024-11-10 00:04:42,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:42,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381691728] [2024-11-10 00:04:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:42,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 00:04:42,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381691728] [2024-11-10 00:04:42,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381691728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:42,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:42,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:42,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261600182] [2024-11-10 00:04:42,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:42,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:42,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:42,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:42,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:42,740 INFO L87 Difference]: Start difference. First operand 42937 states and 61432 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:43,936 INFO L93 Difference]: Finished difference Result 197257 states and 282720 transitions. [2024-11-10 00:04:43,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:04:43,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 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 134 [2024-11-10 00:04:43,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:44,421 INFO L225 Difference]: With dead ends: 197257 [2024-11-10 00:04:44,422 INFO L226 Difference]: Without dead ends: 175815 [2024-11-10 00:04:44,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:04:44,479 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 1676 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:44,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2425 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:04:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175815 states. [2024-11-10 00:04:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175815 to 75193. [2024-11-10 00:04:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75193 states, 75192 states have (on average 1.426002766251729) internal successors, (107224), 75192 states have internal predecessors, (107224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75193 states to 75193 states and 107224 transitions. [2024-11-10 00:04:46,356 INFO L78 Accepts]: Start accepts. Automaton has 75193 states and 107224 transitions. Word has length 134 [2024-11-10 00:04:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:46,356 INFO L471 AbstractCegarLoop]: Abstraction has 75193 states and 107224 transitions. [2024-11-10 00:04:46,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 75193 states and 107224 transitions. [2024-11-10 00:04:46,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:04:46,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:46,368 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:46,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:04:46,368 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:46,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:46,369 INFO L85 PathProgramCache]: Analyzing trace with hash 441116374, now seen corresponding path program 1 times [2024-11-10 00:04:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:46,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146898981] [2024-11-10 00:04:46,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:46,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 00:04:46,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:46,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146898981] [2024-11-10 00:04:46,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146898981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:46,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:46,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:46,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667229976] [2024-11-10 00:04:46,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:46,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:46,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:46,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:46,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:46,631 INFO L87 Difference]: Start difference. First operand 75193 states and 107224 transitions. Second operand has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:47,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:47,883 INFO L93 Difference]: Finished difference Result 218697 states and 313312 transitions. [2024-11-10 00:04:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:04:47,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 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 134 [2024-11-10 00:04:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:48,206 INFO L225 Difference]: With dead ends: 218697 [2024-11-10 00:04:48,207 INFO L226 Difference]: Without dead ends: 197255 [2024-11-10 00:04:48,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:04:48,283 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 1741 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:48,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 2294 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:04:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197255 states. [2024-11-10 00:04:50,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197255 to 96633. [2024-11-10 00:04:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96633 states, 96632 states have (on average 1.4261942213759418) internal successors, (137816), 96632 states have internal predecessors, (137816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96633 states to 96633 states and 137816 transitions. [2024-11-10 00:04:50,615 INFO L78 Accepts]: Start accepts. Automaton has 96633 states and 137816 transitions. Word has length 134 [2024-11-10 00:04:50,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:50,615 INFO L471 AbstractCegarLoop]: Abstraction has 96633 states and 137816 transitions. [2024-11-10 00:04:50,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.0) internal successors, (126), 9 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:50,616 INFO L276 IsEmpty]: Start isEmpty. Operand 96633 states and 137816 transitions. [2024-11-10 00:04:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:04:50,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:50,628 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:50,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:04:50,629 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:50,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1800477673, now seen corresponding path program 1 times [2024-11-10 00:04:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765747140] [2024-11-10 00:04:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 00:04:50,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:50,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765747140] [2024-11-10 00:04:50,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765747140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:50,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:50,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:50,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582742298] [2024-11-10 00:04:50,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:50,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:50,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:50,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:50,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:50,868 INFO L87 Difference]: Start difference. First operand 96633 states and 137816 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:52,110 INFO L93 Difference]: Finished difference Result 240137 states and 343904 transitions. [2024-11-10 00:04:52,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:04:52,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 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 134 [2024-11-10 00:04:52,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:52,466 INFO L225 Difference]: With dead ends: 240137 [2024-11-10 00:04:52,466 INFO L226 Difference]: Without dead ends: 218695 [2024-11-10 00:04:52,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:04:52,552 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 1805 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:52,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1805 Valid, 2282 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:04:52,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218695 states. [2024-11-10 00:04:55,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218695 to 118073. [2024-11-10 00:04:55,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118073 states, 118072 states have (on average 1.4263161460803577) internal successors, (168408), 118072 states have internal predecessors, (168408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118073 states to 118073 states and 168408 transitions. [2024-11-10 00:04:55,661 INFO L78 Accepts]: Start accepts. Automaton has 118073 states and 168408 transitions. Word has length 134 [2024-11-10 00:04:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:04:55,662 INFO L471 AbstractCegarLoop]: Abstraction has 118073 states and 168408 transitions. [2024-11-10 00:04:55,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:55,662 INFO L276 IsEmpty]: Start isEmpty. Operand 118073 states and 168408 transitions. [2024-11-10 00:04:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:04:55,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:04:55,677 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:04:55,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 00:04:55,678 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:04:55,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:04:55,678 INFO L85 PathProgramCache]: Analyzing trace with hash -314584842, now seen corresponding path program 1 times [2024-11-10 00:04:55,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:04:55,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937388586] [2024-11-10 00:04:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:04:55,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:04:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:04:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 00:04:56,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:04:56,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937388586] [2024-11-10 00:04:56,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937388586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:04:56,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:04:56,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:04:56,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459038043] [2024-11-10 00:04:56,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:04:56,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:04:56,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:04:56,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:04:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:04:56,385 INFO L87 Difference]: Start difference. First operand 118073 states and 168408 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:04:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:04:57,280 INFO L93 Difference]: Finished difference Result 261577 states and 374496 transitions. [2024-11-10 00:04:57,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:04:57,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 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 134 [2024-11-10 00:04:57,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:04:57,667 INFO L225 Difference]: With dead ends: 261577 [2024-11-10 00:04:57,667 INFO L226 Difference]: Without dead ends: 240135 [2024-11-10 00:04:57,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:04:57,772 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 1891 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:04:57,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 2323 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:04:57,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240135 states. [2024-11-10 00:05:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240135 to 139513. [2024-11-10 00:05:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139513 states, 139512 states have (on average 1.4264005963644704) internal successors, (199000), 139512 states have internal predecessors, (199000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139513 states to 139513 states and 199000 transitions. [2024-11-10 00:05:01,319 INFO L78 Accepts]: Start accepts. Automaton has 139513 states and 199000 transitions. Word has length 134 [2024-11-10 00:05:01,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:05:01,319 INFO L471 AbstractCegarLoop]: Abstraction has 139513 states and 199000 transitions. [2024-11-10 00:05:01,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 139513 states and 199000 transitions. [2024-11-10 00:05:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-10 00:05:01,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:05:01,366 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:05:01,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 00:05:01,368 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:05:01,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:05:01,372 INFO L85 PathProgramCache]: Analyzing trace with hash -235823305, now seen corresponding path program 1 times [2024-11-10 00:05:01,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:05:01,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289626977] [2024-11-10 00:05:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:05:01,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:05:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:05:01,909 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-10 00:05:01,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:05:01,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289626977] [2024-11-10 00:05:01,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289626977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:05:01,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:05:01,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:05:01,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314457620] [2024-11-10 00:05:01,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:05:01,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:05:01,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:05:01,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:05:01,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:05:01,913 INFO L87 Difference]: Start difference. First operand 139513 states and 199000 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:03,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:05:03,146 INFO L93 Difference]: Finished difference Result 283017 states and 405088 transitions. [2024-11-10 00:05:03,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:05:03,146 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2024-11-10 00:05:03,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:05:03,639 INFO L225 Difference]: With dead ends: 283017 [2024-11-10 00:05:03,639 INFO L226 Difference]: Without dead ends: 261575 [2024-11-10 00:05:03,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:05:03,747 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 1661 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:05:03,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 2554 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:05:03,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261575 states. [2024-11-10 00:05:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261575 to 160953. [2024-11-10 00:05:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160953 states, 160952 states have (on average 1.4264625478403499) internal successors, (229592), 160952 states have internal predecessors, (229592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:07,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160953 states to 160953 states and 229592 transitions. [2024-11-10 00:05:07,880 INFO L78 Accepts]: Start accepts. Automaton has 160953 states and 229592 transitions. Word has length 134 [2024-11-10 00:05:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:05:07,881 INFO L471 AbstractCegarLoop]: Abstraction has 160953 states and 229592 transitions. [2024-11-10 00:05:07,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:07,881 INFO L276 IsEmpty]: Start isEmpty. Operand 160953 states and 229592 transitions. [2024-11-10 00:05:07,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-10 00:05:07,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:05:07,895 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:05:07,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 00:05:07,895 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:05:07,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:05:07,896 INFO L85 PathProgramCache]: Analyzing trace with hash 846288135, now seen corresponding path program 1 times [2024-11-10 00:05:07,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:05:07,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532196151] [2024-11-10 00:05:07,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:05:07,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:05:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:05:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 00:05:08,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:05:08,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532196151] [2024-11-10 00:05:08,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532196151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:05:08,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:05:08,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 00:05:08,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273527579] [2024-11-10 00:05:08,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:05:08,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 00:05:08,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:05:08,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 00:05:08,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 00:05:08,127 INFO L87 Difference]: Start difference. First operand 160953 states and 229592 transitions. Second operand has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:05:09,156 INFO L93 Difference]: Finished difference Result 291273 states and 416864 transitions. [2024-11-10 00:05:09,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:05:09,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 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 135 [2024-11-10 00:05:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:05:10,425 INFO L225 Difference]: With dead ends: 291273 [2024-11-10 00:05:10,425 INFO L226 Difference]: Without dead ends: 276423 [2024-11-10 00:05:10,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:05:10,517 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 1632 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 00:05:10,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 3036 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 00:05:10,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276423 states. [2024-11-10 00:05:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276423 to 175801. [2024-11-10 00:05:13,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175801 states, 175800 states have (on average 1.426848691695108) internal successors, (250840), 175800 states have internal predecessors, (250840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175801 states to 175801 states and 250840 transitions. [2024-11-10 00:05:14,218 INFO L78 Accepts]: Start accepts. Automaton has 175801 states and 250840 transitions. Word has length 135 [2024-11-10 00:05:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:05:14,219 INFO L471 AbstractCegarLoop]: Abstraction has 175801 states and 250840 transitions. [2024-11-10 00:05:14,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.88888888888889) internal successors, (134), 9 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 175801 states and 250840 transitions. [2024-11-10 00:05:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-10 00:05:14,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:05:14,232 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:05:14,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 00:05:14,232 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:05:14,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:05:14,233 INFO L85 PathProgramCache]: Analyzing trace with hash 836835410, now seen corresponding path program 1 times [2024-11-10 00:05:14,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:05:14,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319044101] [2024-11-10 00:05:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:05:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:05:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:05:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:05:14,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:05:14,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319044101] [2024-11-10 00:05:14,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319044101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:05:14,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:05:14,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:05:14,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287687109] [2024-11-10 00:05:14,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:05:14,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:05:14,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:05:14,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:05:14,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:05:14,352 INFO L87 Difference]: Start difference. First operand 175801 states and 250840 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:15,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:05:15,158 INFO L93 Difference]: Finished difference Result 302066 states and 431517 transitions. [2024-11-10 00:05:15,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:05:15,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-10 00:05:15,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:05:16,204 INFO L225 Difference]: With dead ends: 302066 [2024-11-10 00:05:16,204 INFO L226 Difference]: Without dead ends: 126320 [2024-11-10 00:05:16,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:05:16,372 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 83 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:05:16,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 410 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:05:16,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126320 states. [2024-11-10 00:05:18,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126320 to 126318. [2024-11-10 00:05:18,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126318 states, 126317 states have (on average 1.4221522043747081) internal successors, (179642), 126317 states have internal predecessors, (179642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:18,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126318 states to 126318 states and 179642 transitions. [2024-11-10 00:05:18,398 INFO L78 Accepts]: Start accepts. Automaton has 126318 states and 179642 transitions. Word has length 136 [2024-11-10 00:05:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:05:18,398 INFO L471 AbstractCegarLoop]: Abstraction has 126318 states and 179642 transitions. [2024-11-10 00:05:18,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:05:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 126318 states and 179642 transitions. [2024-11-10 00:05:18,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-10 00:05:18,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:05:18,410 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:05:18,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 00:05:18,411 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:05:18,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:05:18,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2053352414, now seen corresponding path program 1 times [2024-11-10 00:05:18,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:05:18,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743833131] [2024-11-10 00:05:18,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:05:18,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:05:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:05:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:05:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:05:18,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743833131] [2024-11-10 00:05:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743833131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:05:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538030938] [2024-11-10 00:05:18,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:05:18,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:05:18,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:05:18,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:05:18,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:05:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:05:19,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 00:05:19,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:05:20,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:05:20,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:05:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:05:21,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538030938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:05:21,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:05:21,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-10 00:05:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735663421] [2024-11-10 00:05:21,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:05:21,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 00:05:21,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:05:21,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 00:05:21,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2024-11-10 00:05:21,958 INFO L87 Difference]: Start difference. First operand 126318 states and 179642 transitions. Second operand has 26 states, 26 states have (on average 14.73076923076923) internal successors, (383), 25 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)