./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f0768bbff34913c5dfb0ad37a2819c04e85c489714efe7283dacc3cb1675b9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:43:06,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:43:06,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:43:06,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:43:06,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:43:06,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:43:06,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:43:06,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:43:06,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:43:06,697 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:43:06,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:43:06,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:43:06,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:43:06,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:43:06,700 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:43:06,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:43:06,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:43:06,701 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:43:06,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:43:06,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:43:06,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:43:06,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:43:06,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:43:06,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:43:06,707 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:43:06,707 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:43:06,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:43:06,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:43:06,707 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:43:06,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:43:06,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:43:06,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:43:06,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:43:06,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:43:06,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:43:06,709 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:43:06,709 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:43:06,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:43:06,710 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:43:06,710 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:43:06,710 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:43:06,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:43:06,711 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f0768bbff34913c5dfb0ad37a2819c04e85c489714efe7283dacc3cb1675b9 [2024-11-16 08:43:06,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:43:06,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:43:06,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:43:06,904 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:43:06,904 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:43:06,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:43:08,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:43:08,248 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:43:08,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:43:08,258 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd724fd25/937bc656de9f474a8840a507a2468a5a/FLAG0fd75131c [2024-11-16 08:43:08,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd724fd25/937bc656de9f474a8840a507a2468a5a [2024-11-16 08:43:08,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:43:08,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:43:08,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:43:08,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:43:08,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:43:08,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:43:08" (1/1) ... [2024-11-16 08:43:08,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bcb6a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:08, skipping insertion in model container [2024-11-16 08:43:08,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:43:08" (1/1) ... [2024-11-16 08:43:08,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:43:08,912 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9094,9107] [2024-11-16 08:43:08,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:43:08,976 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:43:09,035 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9094,9107] [2024-11-16 08:43:09,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:43:09,088 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:43:09,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09 WrapperNode [2024-11-16 08:43:09,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:43:09,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:43:09,090 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:43:09,090 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:43:09,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,105 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,129 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 796 [2024-11-16 08:43:09,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:43:09,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:43:09,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:43:09,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:43:09,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,158 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:43:09,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,168 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:43:09,178 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:43:09,178 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:43:09,178 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:43:09,179 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (1/1) ... [2024-11-16 08:43:09,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:43:09,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:43:09,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 08:43:09,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 08:43:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:43:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:43:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:43:09,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:43:09,343 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:43:09,345 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:43:09,876 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L698: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:43:09,876 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L653: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:43:09,877 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L788: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:43:09,877 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L557: havoc main_~node5__m5~2#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L492: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node6____CPAchecker_TMP_0~0#1;havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1;havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L839: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L608: havoc main_~node6____CPAchecker_TMP_0~1#1;havoc main_~node6__m6~2#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: havoc main_~node4__m4~2#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: havoc main_~node3__m3~2#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:43:09,878 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L512: havoc main_~node2__m2~2#1; [2024-11-16 08:43:09,908 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-16 08:43:09,910 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:43:09,926 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:43:09,927 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:43:09,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:43:09 BoogieIcfgContainer [2024-11-16 08:43:09,927 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:43:09,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:43:09,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:43:09,932 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:43:09,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:43:08" (1/3) ... [2024-11-16 08:43:09,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b763ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:43:09, skipping insertion in model container [2024-11-16 08:43:09,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:43:09" (2/3) ... [2024-11-16 08:43:09,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b763ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:43:09, skipping insertion in model container [2024-11-16 08:43:09,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:43:09" (3/3) ... [2024-11-16 08:43:09,934 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:43:09,945 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:43:09,945 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:43:10,002 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:43:10,013 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;@1f2518cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:43:10,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:43:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 180 states have (on average 1.738888888888889) internal successors, (313), 181 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-16 08:43:10,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:10,034 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] [2024-11-16 08:43:10,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:10,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash 684854700, now seen corresponding path program 1 times [2024-11-16 08:43:10,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174095091] [2024-11-16 08:43:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:10,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:10,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:10,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174095091] [2024-11-16 08:43:10,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174095091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:10,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:10,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:10,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603880071] [2024-11-16 08:43:10,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:10,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:10,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:10,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:10,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:10,712 INFO L87 Difference]: Start difference. First operand has 182 states, 180 states have (on average 1.738888888888889) internal successors, (313), 181 states have internal predecessors, (313), 0 states have call successors, (0), 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 8 states, 8 states have (on average 11.25) internal successors, (90), 8 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) [2024-11-16 08:43:11,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:11,175 INFO L93 Difference]: Finished difference Result 1184 states and 1884 transitions. [2024-11-16 08:43:11,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:43:11,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 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 [2024-11-16 08:43:11,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:11,196 INFO L225 Difference]: With dead ends: 1184 [2024-11-16 08:43:11,197 INFO L226 Difference]: Without dead ends: 1084 [2024-11-16 08:43:11,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:43:11,203 INFO L432 NwaCegarLoop]: 933 mSDtfsCounter, 1834 mSDsluCounter, 4622 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 5555 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:11,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 5555 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:43:11,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-11-16 08:43:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 277. [2024-11-16 08:43:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 1.4456521739130435) internal successors, (399), 276 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 399 transitions. [2024-11-16 08:43:11,257 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 399 transitions. Word has length 90 [2024-11-16 08:43:11,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:11,258 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 399 transitions. [2024-11-16 08:43:11,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 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) [2024-11-16 08:43:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 399 transitions. [2024-11-16 08:43:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:43:11,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:11,261 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] [2024-11-16 08:43:11,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:43:11,262 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:11,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:11,263 INFO L85 PathProgramCache]: Analyzing trace with hash -150691408, now seen corresponding path program 1 times [2024-11-16 08:43:11,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:11,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919983916] [2024-11-16 08:43:11,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:11,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:11,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:11,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:11,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919983916] [2024-11-16 08:43:11,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919983916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:11,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:11,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:11,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205427823] [2024-11-16 08:43:11,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:11,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:11,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:11,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:11,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:11,514 INFO L87 Difference]: Start difference. First operand 277 states and 399 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:11,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:11,731 INFO L93 Difference]: Finished difference Result 1295 states and 1985 transitions. [2024-11-16 08:43:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-11-16 08:43:11,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:11,736 INFO L225 Difference]: With dead ends: 1295 [2024-11-16 08:43:11,736 INFO L226 Difference]: Without dead ends: 1147 [2024-11-16 08:43:11,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:11,739 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 1279 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:11,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 3088 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:11,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-16 08:43:11,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 444. [2024-11-16 08:43:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 1.492099322799097) internal successors, (661), 443 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 661 transitions. [2024-11-16 08:43:11,764 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 661 transitions. Word has length 92 [2024-11-16 08:43:11,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:11,764 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 661 transitions. [2024-11-16 08:43:11,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 661 transitions. [2024-11-16 08:43:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:43:11,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:11,769 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] [2024-11-16 08:43:11,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:43:11,769 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:11,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:11,770 INFO L85 PathProgramCache]: Analyzing trace with hash -870770264, now seen corresponding path program 1 times [2024-11-16 08:43:11,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:11,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928529903] [2024-11-16 08:43:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:11,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:11,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:11,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928529903] [2024-11-16 08:43:11,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928529903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:11,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:11,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:11,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208788020] [2024-11-16 08:43:11,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:11,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:11,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:11,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:11,990 INFO L87 Difference]: Start difference. First operand 444 states and 661 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:12,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:12,207 INFO L93 Difference]: Finished difference Result 1462 states and 2247 transitions. [2024-11-16 08:43:12,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:12,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-11-16 08:43:12,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:12,212 INFO L225 Difference]: With dead ends: 1462 [2024-11-16 08:43:12,212 INFO L226 Difference]: Without dead ends: 1314 [2024-11-16 08:43:12,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:12,214 INFO L432 NwaCegarLoop]: 793 mSDtfsCounter, 1270 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:12,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 3020 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-16 08:43:12,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 684. [2024-11-16 08:43:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.5183016105417277) internal successors, (1037), 683 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1037 transitions. [2024-11-16 08:43:12,230 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1037 transitions. Word has length 92 [2024-11-16 08:43:12,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:12,231 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1037 transitions. [2024-11-16 08:43:12,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1037 transitions. [2024-11-16 08:43:12,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:43:12,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:12,235 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] [2024-11-16 08:43:12,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:43:12,236 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:12,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:12,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1547672400, now seen corresponding path program 1 times [2024-11-16 08:43:12,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:12,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974830871] [2024-11-16 08:43:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:12,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:12,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:12,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974830871] [2024-11-16 08:43:12,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974830871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:12,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:12,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:12,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494020849] [2024-11-16 08:43:12,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:12,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:12,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:12,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:12,452 INFO L87 Difference]: Start difference. First operand 684 states and 1037 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:12,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:12,645 INFO L93 Difference]: Finished difference Result 1624 states and 2501 transitions. [2024-11-16 08:43:12,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:12,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-11-16 08:43:12,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:12,651 INFO L225 Difference]: With dead ends: 1624 [2024-11-16 08:43:12,651 INFO L226 Difference]: Without dead ends: 1476 [2024-11-16 08:43:12,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:12,652 INFO L432 NwaCegarLoop]: 682 mSDtfsCounter, 1379 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 2336 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:12,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 2336 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:12,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2024-11-16 08:43:12,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 846. [2024-11-16 08:43:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 845 states have (on average 1.527810650887574) internal successors, (1291), 845 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1291 transitions. [2024-11-16 08:43:12,670 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1291 transitions. Word has length 92 [2024-11-16 08:43:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:12,670 INFO L471 AbstractCegarLoop]: Abstraction has 846 states and 1291 transitions. [2024-11-16 08:43:12,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:12,670 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1291 transitions. [2024-11-16 08:43:12,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:43:12,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:12,671 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] [2024-11-16 08:43:12,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:43:12,672 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:12,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:12,672 INFO L85 PathProgramCache]: Analyzing trace with hash 531379880, now seen corresponding path program 1 times [2024-11-16 08:43:12,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:12,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870976365] [2024-11-16 08:43:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:12,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:12,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:12,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870976365] [2024-11-16 08:43:12,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870976365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:12,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:12,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:12,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018027165] [2024-11-16 08:43:12,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:12,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:12,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:12,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:12,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:12,835 INFO L87 Difference]: Start difference. First operand 846 states and 1291 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:13,022 INFO L93 Difference]: Finished difference Result 1781 states and 2747 transitions. [2024-11-16 08:43:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-11-16 08:43:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:13,028 INFO L225 Difference]: With dead ends: 1781 [2024-11-16 08:43:13,028 INFO L226 Difference]: Without dead ends: 1633 [2024-11-16 08:43:13,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:13,031 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 1485 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:13,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 2248 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-16 08:43:13,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1003. [2024-11-16 08:43:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.533932135728543) internal successors, (1537), 1002 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1537 transitions. [2024-11-16 08:43:13,061 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1537 transitions. Word has length 92 [2024-11-16 08:43:13,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:13,061 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1537 transitions. [2024-11-16 08:43:13,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1537 transitions. [2024-11-16 08:43:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:43:13,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:13,062 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] [2024-11-16 08:43:13,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:43:13,062 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:13,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:13,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1833592752, now seen corresponding path program 1 times [2024-11-16 08:43:13,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:13,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322482221] [2024-11-16 08:43:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:13,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:13,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:13,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:13,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322482221] [2024-11-16 08:43:13,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322482221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:13,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:13,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:13,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909928533] [2024-11-16 08:43:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:13,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:13,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:13,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:13,211 INFO L87 Difference]: Start difference. First operand 1003 states and 1537 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:13,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:13,391 INFO L93 Difference]: Finished difference Result 1933 states and 2985 transitions. [2024-11-16 08:43:13,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:13,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-11-16 08:43:13,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:13,400 INFO L225 Difference]: With dead ends: 1933 [2024-11-16 08:43:13,403 INFO L226 Difference]: Without dead ends: 1785 [2024-11-16 08:43:13,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:13,404 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 1590 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 2348 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 [2024-11-16 08:43:13,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 2348 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:13,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-16 08:43:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1155. [2024-11-16 08:43:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.5381282495667243) internal successors, (1775), 1154 states have internal predecessors, (1775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1775 transitions. [2024-11-16 08:43:13,428 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1775 transitions. Word has length 92 [2024-11-16 08:43:13,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:13,428 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1775 transitions. [2024-11-16 08:43:13,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:13,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1775 transitions. [2024-11-16 08:43:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-16 08:43:13,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:13,429 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] [2024-11-16 08:43:13,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:43:13,429 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:13,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:13,430 INFO L85 PathProgramCache]: Analyzing trace with hash -216460376, now seen corresponding path program 1 times [2024-11-16 08:43:13,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:13,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729777159] [2024-11-16 08:43:13,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:13,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:13,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:13,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729777159] [2024-11-16 08:43:13,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729777159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:13,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:13,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60358280] [2024-11-16 08:43:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:13,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 08:43:13,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 08:43:13,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:43:13,582 INFO L87 Difference]: Start difference. First operand 1155 states and 1775 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:13,751 INFO L93 Difference]: Finished difference Result 2080 states and 3215 transitions. [2024-11-16 08:43:13,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:13,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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 [2024-11-16 08:43:13,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:13,756 INFO L225 Difference]: With dead ends: 2080 [2024-11-16 08:43:13,757 INFO L226 Difference]: Without dead ends: 1932 [2024-11-16 08:43:13,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:13,758 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1688 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:13,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 2651 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:13,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2024-11-16 08:43:13,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1302. [2024-11-16 08:43:13,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 1.5411222136817833) internal successors, (2005), 1301 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 2005 transitions. [2024-11-16 08:43:13,781 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 2005 transitions. Word has length 92 [2024-11-16 08:43:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:13,782 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 2005 transitions. [2024-11-16 08:43:13,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 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) [2024-11-16 08:43:13,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 2005 transitions. [2024-11-16 08:43:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-16 08:43:13,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:13,785 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] [2024-11-16 08:43:13,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:43:13,785 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:13,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:13,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1548570360, now seen corresponding path program 1 times [2024-11-16 08:43:13,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:13,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397224357] [2024-11-16 08:43:13,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:13,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:13,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:13,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397224357] [2024-11-16 08:43:13,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397224357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:13,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:13,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:43:13,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254937718] [2024-11-16 08:43:13,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:13,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:43:13,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:13,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:43:13,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:13,833 INFO L87 Difference]: Start difference. First operand 1302 states and 2005 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2024-11-16 08:43:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:13,880 INFO L93 Difference]: Finished difference Result 2401 states and 3725 transitions. [2024-11-16 08:43:13,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:43:13,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 [2024-11-16 08:43:13,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:13,901 INFO L225 Difference]: With dead ends: 2401 [2024-11-16 08:43:13,901 INFO L226 Difference]: Without dead ends: 1304 [2024-11-16 08:43:13,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:13,903 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 129 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:13,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 552 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-16 08:43:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1302. [2024-11-16 08:43:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1301 states have (on average 1.5349730976172176) internal successors, (1997), 1301 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1997 transitions. [2024-11-16 08:43:13,927 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1997 transitions. Word has length 93 [2024-11-16 08:43:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:13,927 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1997 transitions. [2024-11-16 08:43:13,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2024-11-16 08:43:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1997 transitions. [2024-11-16 08:43:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 08:43:13,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:13,928 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] [2024-11-16 08:43:13,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:43:13,928 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:13,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash -671695700, now seen corresponding path program 1 times [2024-11-16 08:43:13,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:13,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556666774] [2024-11-16 08:43:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:13,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:14,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:14,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556666774] [2024-11-16 08:43:14,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556666774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:14,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:14,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:14,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664590601] [2024-11-16 08:43:14,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:14,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:14,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:14,013 INFO L87 Difference]: Start difference. First operand 1302 states and 1997 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:14,185 INFO L93 Difference]: Finished difference Result 3752 states and 5809 transitions. [2024-11-16 08:43:14,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-16 08:43:14,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:14,191 INFO L225 Difference]: With dead ends: 3752 [2024-11-16 08:43:14,191 INFO L226 Difference]: Without dead ends: 2496 [2024-11-16 08:43:14,192 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 [2024-11-16 08:43:14,193 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 986 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:14,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 221 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-16 08:43:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2494. [2024-11-16 08:43:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.5411151223425592) internal successors, (3842), 2493 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3842 transitions. [2024-11-16 08:43:14,225 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3842 transitions. Word has length 94 [2024-11-16 08:43:14,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:14,226 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3842 transitions. [2024-11-16 08:43:14,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3842 transitions. [2024-11-16 08:43:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-16 08:43:14,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:14,227 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] [2024-11-16 08:43:14,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:43:14,227 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:14,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash -901768730, now seen corresponding path program 1 times [2024-11-16 08:43:14,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:14,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565191261] [2024-11-16 08:43:14,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:14,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:14,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:14,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565191261] [2024-11-16 08:43:14,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565191261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:14,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:14,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:14,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493730199] [2024-11-16 08:43:14,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:14,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:14,326 INFO L87 Difference]: Start difference. First operand 2494 states and 3842 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:14,443 INFO L93 Difference]: Finished difference Result 4930 states and 7623 transitions. [2024-11-16 08:43:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:14,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-16 08:43:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:14,449 INFO L225 Difference]: With dead ends: 4930 [2024-11-16 08:43:14,449 INFO L226 Difference]: Without dead ends: 2494 [2024-11-16 08:43:14,452 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 [2024-11-16 08:43:14,452 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 635 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:14,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 160 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-16 08:43:14,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-16 08:43:14,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.52868030485359) internal successors, (3811), 2493 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3811 transitions. [2024-11-16 08:43:14,493 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3811 transitions. Word has length 95 [2024-11-16 08:43:14,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:14,493 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3811 transitions. [2024-11-16 08:43:14,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3811 transitions. [2024-11-16 08:43:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 08:43:14,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:14,494 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] [2024-11-16 08:43:14,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:43:14,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:14,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:14,495 INFO L85 PathProgramCache]: Analyzing trace with hash -690331192, now seen corresponding path program 1 times [2024-11-16 08:43:14,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:14,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795541090] [2024-11-16 08:43:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:14,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:14,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:14,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:14,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795541090] [2024-11-16 08:43:14,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795541090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:14,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:14,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:14,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542208392] [2024-11-16 08:43:14,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:14,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:14,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:14,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:14,575 INFO L87 Difference]: Start difference. First operand 2494 states and 3811 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-16 08:43:14,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:14,680 INFO L93 Difference]: Finished difference Result 4926 states and 7557 transitions. [2024-11-16 08:43:14,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:14,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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 [2024-11-16 08:43:14,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:14,686 INFO L225 Difference]: With dead ends: 4926 [2024-11-16 08:43:14,686 INFO L226 Difference]: Without dead ends: 2494 [2024-11-16 08:43:14,688 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 [2024-11-16 08:43:14,689 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 617 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:14,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 168 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-16 08:43:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-16 08:43:14,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.516245487364621) internal successors, (3780), 2493 states have internal predecessors, (3780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3780 transitions. [2024-11-16 08:43:14,720 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3780 transitions. Word has length 96 [2024-11-16 08:43:14,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:14,721 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3780 transitions. [2024-11-16 08:43:14,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 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) [2024-11-16 08:43:14,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3780 transitions. [2024-11-16 08:43:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-16 08:43:14,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:14,722 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] [2024-11-16 08:43:14,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:43:14,722 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:14,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:14,723 INFO L85 PathProgramCache]: Analyzing trace with hash 66810698, now seen corresponding path program 1 times [2024-11-16 08:43:14,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:14,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813029710] [2024-11-16 08:43:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:14,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:14,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:14,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813029710] [2024-11-16 08:43:14,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813029710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:14,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:14,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584684625] [2024-11-16 08:43:14,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:14,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:14,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:14,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:14,803 INFO L87 Difference]: Start difference. First operand 2494 states and 3780 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:14,935 INFO L93 Difference]: Finished difference Result 4938 states and 7509 transitions. [2024-11-16 08:43:14,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:14,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-16 08:43:14,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:14,941 INFO L225 Difference]: With dead ends: 4938 [2024-11-16 08:43:14,941 INFO L226 Difference]: Without dead ends: 2494 [2024-11-16 08:43:14,943 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 [2024-11-16 08:43:14,944 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 645 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:14,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 144 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:14,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-16 08:43:14,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-16 08:43:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.503810669875652) internal successors, (3749), 2493 states have internal predecessors, (3749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3749 transitions. [2024-11-16 08:43:14,972 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3749 transitions. Word has length 97 [2024-11-16 08:43:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:14,972 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3749 transitions. [2024-11-16 08:43:14,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:14,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3749 transitions. [2024-11-16 08:43:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 08:43:14,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:14,973 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] [2024-11-16 08:43:14,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:43:14,973 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:14,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:14,974 INFO L85 PathProgramCache]: Analyzing trace with hash 131078188, now seen corresponding path program 1 times [2024-11-16 08:43:14,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:14,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795725752] [2024-11-16 08:43:14,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:14,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:15,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795725752] [2024-11-16 08:43:15,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795725752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:15,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:15,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:15,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111693950] [2024-11-16 08:43:15,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:15,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:15,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:15,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:15,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:15,046 INFO L87 Difference]: Start difference. First operand 2494 states and 3749 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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) [2024-11-16 08:43:15,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:15,149 INFO L93 Difference]: Finished difference Result 4934 states and 7443 transitions. [2024-11-16 08:43:15,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:15,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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 [2024-11-16 08:43:15,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:15,158 INFO L225 Difference]: With dead ends: 4934 [2024-11-16 08:43:15,159 INFO L226 Difference]: Without dead ends: 2494 [2024-11-16 08:43:15,163 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 [2024-11-16 08:43:15,164 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 627 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:15,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 152 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:15,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-16 08:43:15,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-16 08:43:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4913758523866827) internal successors, (3718), 2493 states have internal predecessors, (3718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3718 transitions. [2024-11-16 08:43:15,192 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3718 transitions. Word has length 98 [2024-11-16 08:43:15,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:15,192 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3718 transitions. [2024-11-16 08:43:15,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 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) [2024-11-16 08:43:15,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3718 transitions. [2024-11-16 08:43:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-16 08:43:15,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:15,194 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] [2024-11-16 08:43:15,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:43:15,194 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:15,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:15,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1224018094, now seen corresponding path program 1 times [2024-11-16 08:43:15,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:15,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307393695] [2024-11-16 08:43:15,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:15,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:15,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:15,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:15,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307393695] [2024-11-16 08:43:15,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307393695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:15,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:15,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:15,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315986981] [2024-11-16 08:43:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:15,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:15,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:15,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:15,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:15,292 INFO L87 Difference]: Start difference. First operand 2494 states and 3718 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) [2024-11-16 08:43:15,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:15,402 INFO L93 Difference]: Finished difference Result 4922 states and 7369 transitions. [2024-11-16 08:43:15,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:15,402 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 [2024-11-16 08:43:15,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:15,405 INFO L225 Difference]: With dead ends: 4922 [2024-11-16 08:43:15,405 INFO L226 Difference]: Without dead ends: 2494 [2024-11-16 08:43:15,407 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 [2024-11-16 08:43:15,407 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 585 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:15,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 176 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2024-11-16 08:43:15,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2494. [2024-11-16 08:43:15,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4789410348977137) internal successors, (3687), 2493 states have internal predecessors, (3687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3687 transitions. [2024-11-16 08:43:15,431 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3687 transitions. Word has length 99 [2024-11-16 08:43:15,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:15,431 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3687 transitions. [2024-11-16 08:43:15,432 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) [2024-11-16 08:43:15,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3687 transitions. [2024-11-16 08:43:15,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:43:15,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:15,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:15,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:43:15,433 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:15,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash -5177728, now seen corresponding path program 1 times [2024-11-16 08:43:15,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:15,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69622895] [2024-11-16 08:43:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:15,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:15,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:15,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69622895] [2024-11-16 08:43:15,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69622895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:15,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:15,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:43:15,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050857342] [2024-11-16 08:43:15,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:15,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:43:15,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:43:15,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:43:15,786 INFO L87 Difference]: Start difference. First operand 2494 states and 3687 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:16,225 INFO L93 Difference]: Finished difference Result 7239 states and 10725 transitions. [2024-11-16 08:43:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:43:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:43:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:16,231 INFO L225 Difference]: With dead ends: 7239 [2024-11-16 08:43:16,231 INFO L226 Difference]: Without dead ends: 4904 [2024-11-16 08:43:16,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:43:16,234 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1094 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:16,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 790 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:43:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4904 states. [2024-11-16 08:43:16,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4904 to 2494. [2024-11-16 08:43:16,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.476534296028881) internal successors, (3681), 2493 states have internal predecessors, (3681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3681 transitions. [2024-11-16 08:43:16,264 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3681 transitions. Word has length 100 [2024-11-16 08:43:16,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:16,265 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3681 transitions. [2024-11-16 08:43:16,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3681 transitions. [2024-11-16 08:43:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:43:16,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:16,266 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:16,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:43:16,266 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:16,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash -682079864, now seen corresponding path program 1 times [2024-11-16 08:43:16,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:16,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741714066] [2024-11-16 08:43:16,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:16,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:16,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741714066] [2024-11-16 08:43:16,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741714066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:16,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:16,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:43:16,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026859715] [2024-11-16 08:43:16,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:16,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:43:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:16,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:43:16,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:43:16,544 INFO L87 Difference]: Start difference. First operand 2494 states and 3681 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:16,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:16,939 INFO L93 Difference]: Finished difference Result 6098 states and 9009 transitions. [2024-11-16 08:43:16,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:43:16,940 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:43:16,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:16,944 INFO L225 Difference]: With dead ends: 6098 [2024-11-16 08:43:16,944 INFO L226 Difference]: Without dead ends: 3748 [2024-11-16 08:43:16,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:43:16,946 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1026 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:16,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 632 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:43:16,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2024-11-16 08:43:16,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 2494. [2024-11-16 08:43:16,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4753309265944645) internal successors, (3678), 2493 states have internal predecessors, (3678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3678 transitions. [2024-11-16 08:43:16,974 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3678 transitions. Word has length 100 [2024-11-16 08:43:16,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:16,974 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3678 transitions. [2024-11-16 08:43:16,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:16,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3678 transitions. [2024-11-16 08:43:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:43:16,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:16,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:16,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:43:16,976 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:16,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:16,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1188125824, now seen corresponding path program 1 times [2024-11-16 08:43:16,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:16,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14640718] [2024-11-16 08:43:16,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:16,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:17,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:17,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14640718] [2024-11-16 08:43:17,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14640718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:17,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:17,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:43:17,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374788072] [2024-11-16 08:43:17,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:17,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:43:17,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:17,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:43:17,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:17,364 INFO L87 Difference]: Start difference. First operand 2494 states and 3678 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:17,872 INFO L93 Difference]: Finished difference Result 7019 states and 10364 transitions. [2024-11-16 08:43:17,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:43:17,873 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:43:17,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:17,878 INFO L225 Difference]: With dead ends: 7019 [2024-11-16 08:43:17,878 INFO L226 Difference]: Without dead ends: 4814 [2024-11-16 08:43:17,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:43:17,880 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1228 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:17,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 867 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:43:17,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2024-11-16 08:43:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 2494. [2024-11-16 08:43:17,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4701163257119936) internal successors, (3665), 2493 states have internal predecessors, (3665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3665 transitions. [2024-11-16 08:43:17,908 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3665 transitions. Word has length 100 [2024-11-16 08:43:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:17,908 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3665 transitions. [2024-11-16 08:43:17,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3665 transitions. [2024-11-16 08:43:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:43:17,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:17,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:17,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:43:17,909 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:17,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:17,909 INFO L85 PathProgramCache]: Analyzing trace with hash 704484202, now seen corresponding path program 1 times [2024-11-16 08:43:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:17,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586569745] [2024-11-16 08:43:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:17,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:18,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:18,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:18,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586569745] [2024-11-16 08:43:18,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586569745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:18,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:18,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:43:18,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886676821] [2024-11-16 08:43:18,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:18,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:43:18,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:18,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:43:18,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:43:18,111 INFO L87 Difference]: Start difference. First operand 2494 states and 3665 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:18,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:18,359 INFO L93 Difference]: Finished difference Result 6988 states and 10332 transitions. [2024-11-16 08:43:18,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:43:18,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 08:43:18,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:18,364 INFO L225 Difference]: With dead ends: 6988 [2024-11-16 08:43:18,364 INFO L226 Difference]: Without dead ends: 4699 [2024-11-16 08:43:18,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:43:18,367 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 817 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:18,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 611 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:18,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4699 states. [2024-11-16 08:43:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4699 to 2494. [2024-11-16 08:43:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.469715202567188) internal successors, (3664), 2493 states have internal predecessors, (3664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3664 transitions. [2024-11-16 08:43:18,391 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3664 transitions. Word has length 101 [2024-11-16 08:43:18,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:18,392 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3664 transitions. [2024-11-16 08:43:18,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:18,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3664 transitions. [2024-11-16 08:43:18,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:43:18,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:18,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:18,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:43:18,393 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:18,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:18,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1702010984, now seen corresponding path program 1 times [2024-11-16 08:43:18,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:18,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793506752] [2024-11-16 08:43:18,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:18,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:18,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:18,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793506752] [2024-11-16 08:43:18,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793506752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:18,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:18,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:43:18,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233881400] [2024-11-16 08:43:18,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:18,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:43:18,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:43:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:43:18,639 INFO L87 Difference]: Start difference. First operand 2494 states and 3664 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:18,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:18,992 INFO L93 Difference]: Finished difference Result 7119 states and 10488 transitions. [2024-11-16 08:43:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:43:18,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:43:18,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:18,998 INFO L225 Difference]: With dead ends: 7119 [2024-11-16 08:43:18,998 INFO L226 Difference]: Without dead ends: 4859 [2024-11-16 08:43:19,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:43:19,001 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 946 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:19,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 635 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:19,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2024-11-16 08:43:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 2494. [2024-11-16 08:43:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2494 states, 2493 states have (on average 1.4653028479743282) internal successors, (3653), 2493 states have internal predecessors, (3653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2494 states to 2494 states and 3653 transitions. [2024-11-16 08:43:19,030 INFO L78 Accepts]: Start accepts. Automaton has 2494 states and 3653 transitions. Word has length 102 [2024-11-16 08:43:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:19,031 INFO L471 AbstractCegarLoop]: Abstraction has 2494 states and 3653 transitions. [2024-11-16 08:43:19,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2494 states and 3653 transitions. [2024-11-16 08:43:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:43:19,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:19,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:19,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:43:19,032 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:19,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:19,033 INFO L85 PathProgramCache]: Analyzing trace with hash -734895494, now seen corresponding path program 1 times [2024-11-16 08:43:19,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:19,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252601390] [2024-11-16 08:43:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:19,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:19,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:19,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252601390] [2024-11-16 08:43:19,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252601390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:19,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:19,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:43:19,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730608722] [2024-11-16 08:43:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:19,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:43:19,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:19,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:43:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:19,468 INFO L87 Difference]: Start difference. First operand 2494 states and 3653 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:20,408 INFO L93 Difference]: Finished difference Result 15121 states and 22195 transitions. [2024-11-16 08:43:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 08:43:20,408 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-16 08:43:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:20,421 INFO L225 Difference]: With dead ends: 15121 [2024-11-16 08:43:20,421 INFO L226 Difference]: Without dead ends: 12816 [2024-11-16 08:43:20,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:43:20,425 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1864 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:20,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 1367 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:43:20,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12816 states. [2024-11-16 08:43:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12816 to 2512. [2024-11-16 08:43:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2512 states, 2511 states have (on average 1.4607726005575468) internal successors, (3668), 2511 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 3668 transitions. [2024-11-16 08:43:20,480 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 3668 transitions. Word has length 103 [2024-11-16 08:43:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:20,481 INFO L471 AbstractCegarLoop]: Abstraction has 2512 states and 3668 transitions. [2024-11-16 08:43:20,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:20,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 3668 transitions. [2024-11-16 08:43:20,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:43:20,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:20,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:20,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:43:20,482 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:20,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:20,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1534427824, now seen corresponding path program 1 times [2024-11-16 08:43:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781766274] [2024-11-16 08:43:20,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:20,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:20,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781766274] [2024-11-16 08:43:20,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781766274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:20,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:20,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:43:20,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21473858] [2024-11-16 08:43:20,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:20,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:43:20,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:20,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:43:20,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:20,984 INFO L87 Difference]: Start difference. First operand 2512 states and 3668 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:21,455 INFO L93 Difference]: Finished difference Result 5358 states and 7885 transitions. [2024-11-16 08:43:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:43:21,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 08:43:21,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:21,462 INFO L225 Difference]: With dead ends: 5358 [2024-11-16 08:43:21,462 INFO L226 Difference]: Without dead ends: 4768 [2024-11-16 08:43:21,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:43:21,465 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1180 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:21,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1224 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4768 states. [2024-11-16 08:43:21,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4768 to 2510. [2024-11-16 08:43:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 2509 states have (on average 1.455958549222798) internal successors, (3653), 2509 states have internal predecessors, (3653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3653 transitions. [2024-11-16 08:43:21,491 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3653 transitions. Word has length 104 [2024-11-16 08:43:21,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:21,491 INFO L471 AbstractCegarLoop]: Abstraction has 2510 states and 3653 transitions. [2024-11-16 08:43:21,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3653 transitions. [2024-11-16 08:43:21,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:43:21,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:21,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:21,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:43:21,492 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:21,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:21,493 INFO L85 PathProgramCache]: Analyzing trace with hash -787265104, now seen corresponding path program 1 times [2024-11-16 08:43:21,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:21,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285023683] [2024-11-16 08:43:21,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:21,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:21,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:21,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285023683] [2024-11-16 08:43:21,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285023683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:21,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:21,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:43:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909884060] [2024-11-16 08:43:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:21,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:43:21,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:43:21,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:21,970 INFO L87 Difference]: Start difference. First operand 2510 states and 3653 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:22,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:22,455 INFO L93 Difference]: Finished difference Result 5409 states and 7940 transitions. [2024-11-16 08:43:22,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:43:22,456 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 08:43:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:22,460 INFO L225 Difference]: With dead ends: 5409 [2024-11-16 08:43:22,460 INFO L226 Difference]: Without dead ends: 4779 [2024-11-16 08:43:22,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:43:22,462 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 1188 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:22,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 1497 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:22,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2024-11-16 08:43:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 2488. [2024-11-16 08:43:22,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 2487 states have (on average 1.4539605950944914) internal successors, (3616), 2487 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:22,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3616 transitions. [2024-11-16 08:43:22,503 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3616 transitions. Word has length 104 [2024-11-16 08:43:22,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:22,504 INFO L471 AbstractCegarLoop]: Abstraction has 2488 states and 3616 transitions. [2024-11-16 08:43:22,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3616 transitions. [2024-11-16 08:43:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:43:22,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:22,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:22,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:43:22,506 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:22,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:22,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1693639640, now seen corresponding path program 1 times [2024-11-16 08:43:22,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:22,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166229293] [2024-11-16 08:43:22,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:22,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:23,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:23,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166229293] [2024-11-16 08:43:23,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166229293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:23,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:23,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:43:23,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2822222] [2024-11-16 08:43:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:23,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:43:23,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:23,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:43:23,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:43:23,064 INFO L87 Difference]: Start difference. First operand 2488 states and 3616 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:23,773 INFO L93 Difference]: Finished difference Result 9915 states and 14591 transitions. [2024-11-16 08:43:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:43:23,774 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 08:43:23,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:23,783 INFO L225 Difference]: With dead ends: 9915 [2024-11-16 08:43:23,783 INFO L226 Difference]: Without dead ends: 9265 [2024-11-16 08:43:23,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:43:23,787 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1190 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3309 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:23,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 3309 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9265 states. [2024-11-16 08:43:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9265 to 2446. [2024-11-16 08:43:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2445 states have (on average 1.45480572597137) internal successors, (3557), 2445 states have internal predecessors, (3557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 3557 transitions. [2024-11-16 08:43:23,828 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 3557 transitions. Word has length 104 [2024-11-16 08:43:23,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:23,828 INFO L471 AbstractCegarLoop]: Abstraction has 2446 states and 3557 transitions. [2024-11-16 08:43:23,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 3557 transitions. [2024-11-16 08:43:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:43:23,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:23,829 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:23,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:43:23,829 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:23,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:23,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1839802880, now seen corresponding path program 1 times [2024-11-16 08:43:23,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:23,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340882546] [2024-11-16 08:43:23,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:23,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:24,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:24,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340882546] [2024-11-16 08:43:24,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340882546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:24,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:24,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:43:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46791265] [2024-11-16 08:43:24,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:24,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:43:24,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:24,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:43:24,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:43:24,308 INFO L87 Difference]: Start difference. First operand 2446 states and 3557 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:24,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:24,843 INFO L93 Difference]: Finished difference Result 5908 states and 8670 transitions. [2024-11-16 08:43:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:43:24,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 08:43:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:24,848 INFO L225 Difference]: With dead ends: 5908 [2024-11-16 08:43:24,848 INFO L226 Difference]: Without dead ends: 5244 [2024-11-16 08:43:24,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:43:24,849 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 1020 mSDsluCounter, 3375 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:24,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 3769 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:24,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5244 states. [2024-11-16 08:43:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5244 to 2374. [2024-11-16 08:43:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2374 states, 2373 states have (on average 1.459755583649389) internal successors, (3464), 2373 states have internal predecessors, (3464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3464 transitions. [2024-11-16 08:43:24,872 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3464 transitions. Word has length 104 [2024-11-16 08:43:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:24,873 INFO L471 AbstractCegarLoop]: Abstraction has 2374 states and 3464 transitions. [2024-11-16 08:43:24,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3464 transitions. [2024-11-16 08:43:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:43:24,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:24,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:24,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:43:24,874 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:24,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 134224936, now seen corresponding path program 1 times [2024-11-16 08:43:24,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:24,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533591634] [2024-11-16 08:43:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:24,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:25,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:25,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533591634] [2024-11-16 08:43:25,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533591634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:25,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:25,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:43:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102081532] [2024-11-16 08:43:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:25,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:43:25,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:43:25,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:43:25,255 INFO L87 Difference]: Start difference. First operand 2374 states and 3464 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:25,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:25,563 INFO L93 Difference]: Finished difference Result 5156 states and 7595 transitions. [2024-11-16 08:43:25,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:43:25,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 08:43:25,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:25,566 INFO L225 Difference]: With dead ends: 5156 [2024-11-16 08:43:25,567 INFO L226 Difference]: Without dead ends: 4535 [2024-11-16 08:43:25,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:43:25,568 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 768 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:25,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 1528 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:25,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4535 states. [2024-11-16 08:43:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4535 to 2339. [2024-11-16 08:43:25,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 1.4627887082976903) internal successors, (3420), 2338 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 3420 transitions. [2024-11-16 08:43:25,590 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 3420 transitions. Word has length 104 [2024-11-16 08:43:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:25,591 INFO L471 AbstractCegarLoop]: Abstraction has 2339 states and 3420 transitions. [2024-11-16 08:43:25,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 3420 transitions. [2024-11-16 08:43:25,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 08:43:25,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:25,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:25,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:43:25,592 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:25,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:25,592 INFO L85 PathProgramCache]: Analyzing trace with hash -42430274, now seen corresponding path program 1 times [2024-11-16 08:43:25,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:25,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240894157] [2024-11-16 08:43:25,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:25,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240894157] [2024-11-16 08:43:27,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240894157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:27,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:27,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2024-11-16 08:43:27,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817824299] [2024-11-16 08:43:27,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:27,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-16 08:43:27,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:27,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-16 08:43:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1391, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 08:43:27,801 INFO L87 Difference]: Start difference. First operand 2339 states and 3420 transitions. Second operand has 39 states, 39 states have (on average 2.717948717948718) internal successors, (106), 39 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:31,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:31,621 INFO L93 Difference]: Finished difference Result 5150 states and 7587 transitions. [2024-11-16 08:43:31,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-16 08:43:31,622 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.717948717948718) internal successors, (106), 39 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-11-16 08:43:31,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:31,626 INFO L225 Difference]: With dead ends: 5150 [2024-11-16 08:43:31,626 INFO L226 Difference]: Without dead ends: 4563 [2024-11-16 08:43:31,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=694, Invalid=4562, Unknown=0, NotChecked=0, Total=5256 [2024-11-16 08:43:31,628 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 784 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 3117 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:31,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 4188 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3117 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-16 08:43:31,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4563 states. [2024-11-16 08:43:31,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4563 to 2356. [2024-11-16 08:43:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 2355 states have (on average 1.4611464968152865) internal successors, (3441), 2355 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:31,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3441 transitions. [2024-11-16 08:43:31,650 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3441 transitions. Word has length 106 [2024-11-16 08:43:31,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:31,650 INFO L471 AbstractCegarLoop]: Abstraction has 2356 states and 3441 transitions. [2024-11-16 08:43:31,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.717948717948718) internal successors, (106), 39 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:31,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3441 transitions. [2024-11-16 08:43:31,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 08:43:31,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:31,651 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:31,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:43:31,651 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:31,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:31,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2146974488, now seen corresponding path program 1 times [2024-11-16 08:43:31,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:31,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120993731] [2024-11-16 08:43:31,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:31,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:31,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:31,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120993731] [2024-11-16 08:43:31,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120993731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:31,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:31,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:43:31,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169145903] [2024-11-16 08:43:31,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:31,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:43:31,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:43:31,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:43:31,829 INFO L87 Difference]: Start difference. First operand 2356 states and 3441 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:32,211 INFO L93 Difference]: Finished difference Result 6872 states and 10103 transitions. [2024-11-16 08:43:32,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:43:32,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-11-16 08:43:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:32,214 INFO L225 Difference]: With dead ends: 6872 [2024-11-16 08:43:32,214 INFO L226 Difference]: Without dead ends: 4646 [2024-11-16 08:43:32,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:43:32,217 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 599 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:32,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 978 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:43:32,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2024-11-16 08:43:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 2350. [2024-11-16 08:43:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 2349 states have (on average 1.4614729672200937) internal successors, (3433), 2349 states have internal predecessors, (3433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3433 transitions. [2024-11-16 08:43:32,240 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3433 transitions. Word has length 106 [2024-11-16 08:43:32,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:32,240 INFO L471 AbstractCegarLoop]: Abstraction has 2350 states and 3433 transitions. [2024-11-16 08:43:32,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3433 transitions. [2024-11-16 08:43:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:43:32,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:32,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:32,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:43:32,241 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:32,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1744031682, now seen corresponding path program 1 times [2024-11-16 08:43:32,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:32,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408619194] [2024-11-16 08:43:32,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:32,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:32,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:32,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:32,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408619194] [2024-11-16 08:43:32,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408619194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:32,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:32,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:43:32,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33244683] [2024-11-16 08:43:32,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:32,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:43:32,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:32,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:43:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:32,645 INFO L87 Difference]: Start difference. First operand 2350 states and 3433 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:32,944 INFO L93 Difference]: Finished difference Result 5150 states and 7588 transitions. [2024-11-16 08:43:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:43:32,945 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-16 08:43:32,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:32,948 INFO L225 Difference]: With dead ends: 5150 [2024-11-16 08:43:32,948 INFO L226 Difference]: Without dead ends: 4548 [2024-11-16 08:43:32,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-16 08:43:32,949 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 520 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:32,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1968 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4548 states. [2024-11-16 08:43:32,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4548 to 2321. [2024-11-16 08:43:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2320 states have (on average 1.4637931034482758) internal successors, (3396), 2320 states have internal predecessors, (3396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:32,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 3396 transitions. [2024-11-16 08:43:32,970 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 3396 transitions. Word has length 107 [2024-11-16 08:43:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:32,971 INFO L471 AbstractCegarLoop]: Abstraction has 2321 states and 3396 transitions. [2024-11-16 08:43:32,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:32,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 3396 transitions. [2024-11-16 08:43:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:43:32,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:32,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:32,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:43:32,972 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:32,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:32,972 INFO L85 PathProgramCache]: Analyzing trace with hash 65481033, now seen corresponding path program 1 times [2024-11-16 08:43:32,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:32,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100184788] [2024-11-16 08:43:32,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:32,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:33,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:33,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100184788] [2024-11-16 08:43:33,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100184788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:33,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:33,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:43:33,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278745847] [2024-11-16 08:43:33,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:33,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:43:33,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:33,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:43:33,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:33,009 INFO L87 Difference]: Start difference. First operand 2321 states and 3396 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:33,033 INFO L93 Difference]: Finished difference Result 6483 states and 9554 transitions. [2024-11-16 08:43:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:43:33,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-16 08:43:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:33,036 INFO L225 Difference]: With dead ends: 6483 [2024-11-16 08:43:33,036 INFO L226 Difference]: Without dead ends: 4291 [2024-11-16 08:43:33,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:33,039 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 97 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:33,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 426 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:33,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2024-11-16 08:43:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 4229. [2024-11-16 08:43:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4229 states, 4228 states have (on average 1.4538789025543992) internal successors, (6147), 4228 states have internal predecessors, (6147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4229 states to 4229 states and 6147 transitions. [2024-11-16 08:43:33,068 INFO L78 Accepts]: Start accepts. Automaton has 4229 states and 6147 transitions. Word has length 107 [2024-11-16 08:43:33,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:33,069 INFO L471 AbstractCegarLoop]: Abstraction has 4229 states and 6147 transitions. [2024-11-16 08:43:33,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4229 states and 6147 transitions. [2024-11-16 08:43:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:43:33,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:33,069 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:33,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:43:33,070 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:33,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:33,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1978398418, now seen corresponding path program 1 times [2024-11-16 08:43:33,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:33,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136897381] [2024-11-16 08:43:33,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:33,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:33,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136897381] [2024-11-16 08:43:33,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136897381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:33,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:33,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:43:33,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38931412] [2024-11-16 08:43:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:33,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:43:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:33,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:43:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:43:33,167 INFO L87 Difference]: Start difference. First operand 4229 states and 6147 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:33,205 INFO L93 Difference]: Finished difference Result 10063 states and 14708 transitions. [2024-11-16 08:43:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:33,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-16 08:43:33,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:33,210 INFO L225 Difference]: With dead ends: 10063 [2024-11-16 08:43:33,210 INFO L226 Difference]: Without dead ends: 5963 [2024-11-16 08:43:33,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:33,214 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 109 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:33,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 527 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:33,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2024-11-16 08:43:33,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5935. [2024-11-16 08:43:33,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 1.4506235254465791) internal successors, (8608), 5934 states have internal predecessors, (8608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8608 transitions. [2024-11-16 08:43:33,289 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8608 transitions. Word has length 108 [2024-11-16 08:43:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:33,289 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 8608 transitions. [2024-11-16 08:43:33,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8608 transitions. [2024-11-16 08:43:33,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 08:43:33,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:33,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:33,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:43:33,290 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:33,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:33,290 INFO L85 PathProgramCache]: Analyzing trace with hash -336591760, now seen corresponding path program 1 times [2024-11-16 08:43:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:33,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030619028] [2024-11-16 08:43:33,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:33,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:33,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:33,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030619028] [2024-11-16 08:43:33,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030619028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:33,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:33,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:43:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683089094] [2024-11-16 08:43:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:33,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:43:33,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:43:33,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:43:33,443 INFO L87 Difference]: Start difference. First operand 5935 states and 8608 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:33,467 INFO L93 Difference]: Finished difference Result 5993 states and 8679 transitions. [2024-11-16 08:43:33,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:43:33,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2024-11-16 08:43:33,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:33,472 INFO L225 Difference]: With dead ends: 5993 [2024-11-16 08:43:33,472 INFO L226 Difference]: Without dead ends: 5991 [2024-11-16 08:43:33,472 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 [2024-11-16 08:43:33,473 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 861 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 [2024-11-16 08:43:33,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 861 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:33,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2024-11-16 08:43:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5991. [2024-11-16 08:43:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5991 states, 5990 states have (on average 1.4414023372287146) internal successors, (8634), 5990 states have internal predecessors, (8634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5991 states to 5991 states and 8634 transitions. [2024-11-16 08:43:33,517 INFO L78 Accepts]: Start accepts. Automaton has 5991 states and 8634 transitions. Word has length 108 [2024-11-16 08:43:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:33,517 INFO L471 AbstractCegarLoop]: Abstraction has 5991 states and 8634 transitions. [2024-11-16 08:43:33,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5991 states and 8634 transitions. [2024-11-16 08:43:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 08:43:33,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:33,519 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:33,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 08:43:33,520 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:33,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:33,520 INFO L85 PathProgramCache]: Analyzing trace with hash 570311092, now seen corresponding path program 1 times [2024-11-16 08:43:33,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:33,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459736071] [2024-11-16 08:43:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:33,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:33,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:33,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459736071] [2024-11-16 08:43:33,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459736071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:33,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:43:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839375791] [2024-11-16 08:43:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:33,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:43:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:43:33,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:43:33,627 INFO L87 Difference]: Start difference. First operand 5991 states and 8634 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:33,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:33,891 INFO L93 Difference]: Finished difference Result 20121 states and 29320 transitions. [2024-11-16 08:43:33,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:43:33,891 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-16 08:43:33,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:33,902 INFO L225 Difference]: With dead ends: 20121 [2024-11-16 08:43:33,902 INFO L226 Difference]: Without dead ends: 14259 [2024-11-16 08:43:33,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:33,908 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 961 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:33,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 550 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:33,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14259 states. [2024-11-16 08:43:34,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14259 to 9017. [2024-11-16 08:43:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9017 states, 9016 states have (on average 1.4406610470275067) internal successors, (12989), 9016 states have internal predecessors, (12989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:34,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9017 states to 9017 states and 12989 transitions. [2024-11-16 08:43:34,021 INFO L78 Accepts]: Start accepts. Automaton has 9017 states and 12989 transitions. Word has length 141 [2024-11-16 08:43:34,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:34,021 INFO L471 AbstractCegarLoop]: Abstraction has 9017 states and 12989 transitions. [2024-11-16 08:43:34,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:34,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9017 states and 12989 transitions. [2024-11-16 08:43:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 08:43:34,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:34,026 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:34,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 08:43:34,026 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:34,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1010451852, now seen corresponding path program 1 times [2024-11-16 08:43:34,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:34,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799551804] [2024-11-16 08:43:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:34,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:34,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799551804] [2024-11-16 08:43:34,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799551804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:34,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:34,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:43:34,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32567888] [2024-11-16 08:43:34,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:34,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:43:34,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:43:34,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:43:34,124 INFO L87 Difference]: Start difference. First operand 9017 states and 12989 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:34,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:34,340 INFO L93 Difference]: Finished difference Result 36221 states and 52737 transitions. [2024-11-16 08:43:34,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:43:34,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-16 08:43:34,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:34,368 INFO L225 Difference]: With dead ends: 36221 [2024-11-16 08:43:34,369 INFO L226 Difference]: Without dead ends: 27375 [2024-11-16 08:43:34,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:34,382 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1266 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:34,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 430 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:34,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27375 states. [2024-11-16 08:43:34,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27375 to 19021. [2024-11-16 08:43:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 19020 states have (on average 1.4411146161934805) internal successors, (27410), 19020 states have internal predecessors, (27410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:34,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 27410 transitions. [2024-11-16 08:43:34,647 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 27410 transitions. Word has length 141 [2024-11-16 08:43:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:34,647 INFO L471 AbstractCegarLoop]: Abstraction has 19021 states and 27410 transitions. [2024-11-16 08:43:34,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 27410 transitions. [2024-11-16 08:43:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 08:43:34,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:34,650 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:34,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 08:43:34,651 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:34,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1336382260, now seen corresponding path program 1 times [2024-11-16 08:43:34,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:34,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090964158] [2024-11-16 08:43:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:34,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:34,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:34,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090964158] [2024-11-16 08:43:34,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090964158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:34,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:34,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:43:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177692272] [2024-11-16 08:43:34,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:34,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:43:34,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:34,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:43:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:43:34,787 INFO L87 Difference]: Start difference. First operand 19021 states and 27410 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:35,117 INFO L93 Difference]: Finished difference Result 71105 states and 103192 transitions. [2024-11-16 08:43:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:43:35,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-16 08:43:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:35,173 INFO L225 Difference]: With dead ends: 71105 [2024-11-16 08:43:35,173 INFO L226 Difference]: Without dead ends: 52255 [2024-11-16 08:43:35,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:35,197 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1181 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:35,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 428 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:43:35,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52255 states. [2024-11-16 08:43:35,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52255 to 40189. [2024-11-16 08:43:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40189 states, 40188 states have (on average 1.4401313825022395) internal successors, (57876), 40188 states have internal predecessors, (57876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40189 states to 40189 states and 57876 transitions. [2024-11-16 08:43:35,677 INFO L78 Accepts]: Start accepts. Automaton has 40189 states and 57876 transitions. Word has length 141 [2024-11-16 08:43:35,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:35,678 INFO L471 AbstractCegarLoop]: Abstraction has 40189 states and 57876 transitions. [2024-11-16 08:43:35,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 40189 states and 57876 transitions. [2024-11-16 08:43:35,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 08:43:35,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:35,681 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:35,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 08:43:35,681 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:35,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash 681945108, now seen corresponding path program 1 times [2024-11-16 08:43:35,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:35,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78818740] [2024-11-16 08:43:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:35,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:35,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:35,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78818740] [2024-11-16 08:43:35,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78818740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:35,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:35,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:43:35,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800545524] [2024-11-16 08:43:35,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:35,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:43:35,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:35,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:43:35,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:43:35,800 INFO L87 Difference]: Start difference. First operand 40189 states and 57876 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:36,348 INFO L93 Difference]: Finished difference Result 139713 states and 202014 transitions. [2024-11-16 08:43:36,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:43:36,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-16 08:43:36,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:36,550 INFO L225 Difference]: With dead ends: 139713 [2024-11-16 08:43:36,550 INFO L226 Difference]: Without dead ends: 99695 [2024-11-16 08:43:36,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:36,601 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1096 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:36,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 426 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99695 states. [2024-11-16 08:43:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99695 to 84845. [2024-11-16 08:43:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84845 states, 84844 states have (on average 1.4385931827825185) internal successors, (122056), 84844 states have internal predecessors, (122056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:37,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84845 states to 84845 states and 122056 transitions. [2024-11-16 08:43:37,540 INFO L78 Accepts]: Start accepts. Automaton has 84845 states and 122056 transitions. Word has length 141 [2024-11-16 08:43:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:37,540 INFO L471 AbstractCegarLoop]: Abstraction has 84845 states and 122056 transitions. [2024-11-16 08:43:37,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:37,541 INFO L276 IsEmpty]: Start isEmpty. Operand 84845 states and 122056 transitions. [2024-11-16 08:43:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 08:43:37,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:37,545 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:37,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 08:43:37,545 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:37,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash -186958556, now seen corresponding path program 1 times [2024-11-16 08:43:37,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:37,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152158110] [2024-11-16 08:43:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:37,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:37,917 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:37,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152158110] [2024-11-16 08:43:37,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152158110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:37,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:37,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:43:37,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788886725] [2024-11-16 08:43:37,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:37,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:43:37,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:37,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:43:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:43:37,919 INFO L87 Difference]: Start difference. First operand 84845 states and 122056 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:38,732 INFO L93 Difference]: Finished difference Result 274609 states and 395482 transitions. [2024-11-16 08:43:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:43:38,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-11-16 08:43:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:38,940 INFO L225 Difference]: With dead ends: 274609 [2024-11-16 08:43:38,941 INFO L226 Difference]: Without dead ends: 189935 [2024-11-16 08:43:39,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:43:39,123 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1011 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:39,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 424 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189935 states. [2024-11-16 08:43:40,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189935 to 178797. [2024-11-16 08:43:40,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178797 states, 178796 states have (on average 1.4369001543658695) internal successors, (256912), 178796 states have internal predecessors, (256912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178797 states to 178797 states and 256912 transitions. [2024-11-16 08:43:41,520 INFO L78 Accepts]: Start accepts. Automaton has 178797 states and 256912 transitions. Word has length 142 [2024-11-16 08:43:41,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:41,520 INFO L471 AbstractCegarLoop]: Abstraction has 178797 states and 256912 transitions. [2024-11-16 08:43:41,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 6 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 178797 states and 256912 transitions. [2024-11-16 08:43:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 08:43:41,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:41,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:41,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 08:43:41,537 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:41,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1623651070, now seen corresponding path program 1 times [2024-11-16 08:43:41,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:41,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333911055] [2024-11-16 08:43:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:41,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:41,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:41,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333911055] [2024-11-16 08:43:41,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333911055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:41,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:41,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:43:41,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152183587] [2024-11-16 08:43:41,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:41,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:43:41,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:41,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:43:41,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:43:41,638 INFO L87 Difference]: Start difference. First operand 178797 states and 256912 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:43,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:43,191 INFO L93 Difference]: Finished difference Result 468977 states and 671298 transitions. [2024-11-16 08:43:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:43:43,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2024-11-16 08:43:43,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:43,655 INFO L225 Difference]: With dead ends: 468977 [2024-11-16 08:43:43,655 INFO L226 Difference]: Without dead ends: 325967 [2024-11-16 08:43:43,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:43:43,765 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1013 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:43,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 384 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:43:43,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325967 states. [2024-11-16 08:43:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325967 to 209037. [2024-11-16 08:43:46,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209037 states, 209036 states have (on average 1.4145697391836813) internal successors, (295696), 209036 states have internal predecessors, (295696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209037 states to 209037 states and 295696 transitions. [2024-11-16 08:43:47,384 INFO L78 Accepts]: Start accepts. Automaton has 209037 states and 295696 transitions. Word has length 143 [2024-11-16 08:43:47,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:47,384 INFO L471 AbstractCegarLoop]: Abstraction has 209037 states and 295696 transitions. [2024-11-16 08:43:47,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 6 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:47,385 INFO L276 IsEmpty]: Start isEmpty. Operand 209037 states and 295696 transitions. [2024-11-16 08:43:47,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-16 08:43:47,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:47,389 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:43:47,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 08:43:47,390 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:47,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1036457260, now seen corresponding path program 1 times [2024-11-16 08:43:47,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:47,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703159685] [2024-11-16 08:43:47,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:47,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:47,517 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:43:47,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:47,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703159685] [2024-11-16 08:43:47,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703159685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:47,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:47,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:43:47,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031051262] [2024-11-16 08:43:47,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:47,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:43:47,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:47,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:43:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:47,520 INFO L87 Difference]: Start difference. First operand 209037 states and 295696 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:48,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:48,968 INFO L93 Difference]: Finished difference Result 370257 states and 523698 transitions. [2024-11-16 08:43:48,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:43:48,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2024-11-16 08:43:48,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:49,249 INFO L225 Difference]: With dead ends: 370257 [2024-11-16 08:43:49,250 INFO L226 Difference]: Without dead ends: 201837 [2024-11-16 08:43:49,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:49,286 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 100 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:49,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 480 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201837 states. [2024-11-16 08:43:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201837 to 192011. [2024-11-16 08:43:51,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192011 states, 192010 states have (on average 1.4113223269621373) internal successors, (270988), 192010 states have internal predecessors, (270988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192011 states to 192011 states and 270988 transitions. [2024-11-16 08:43:51,441 INFO L78 Accepts]: Start accepts. Automaton has 192011 states and 270988 transitions. Word has length 144 [2024-11-16 08:43:51,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:51,441 INFO L471 AbstractCegarLoop]: Abstraction has 192011 states and 270988 transitions. [2024-11-16 08:43:51,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 192011 states and 270988 transitions. [2024-11-16 08:43:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 08:43:51,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:51,463 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:43:51,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 08:43:51,464 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:51,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1693449305, now seen corresponding path program 1 times [2024-11-16 08:43:51,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:51,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851879499] [2024-11-16 08:43:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:51,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 08:43:51,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:51,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851879499] [2024-11-16 08:43:51,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851879499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:51,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:51,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:43:51,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954229069] [2024-11-16 08:43:51,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:51,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:43:51,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:51,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:43:51,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:51,565 INFO L87 Difference]: Start difference. First operand 192011 states and 270988 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:52,915 INFO L93 Difference]: Finished difference Result 372719 states and 525086 transitions. [2024-11-16 08:43:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:43:52,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 177 [2024-11-16 08:43:52,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:53,144 INFO L225 Difference]: With dead ends: 372719 [2024-11-16 08:43:53,144 INFO L226 Difference]: Without dead ends: 180877 [2024-11-16 08:43:53,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:53,250 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 89 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:53,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 464 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:53,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180877 states. [2024-11-16 08:43:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180877 to 137091. [2024-11-16 08:43:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137091 states, 137090 states have (on average 1.3948792763877744) internal successors, (191224), 137090 states have internal predecessors, (191224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137091 states to 137091 states and 191224 transitions. [2024-11-16 08:43:55,589 INFO L78 Accepts]: Start accepts. Automaton has 137091 states and 191224 transitions. Word has length 177 [2024-11-16 08:43:55,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:55,590 INFO L471 AbstractCegarLoop]: Abstraction has 137091 states and 191224 transitions. [2024-11-16 08:43:55,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:55,590 INFO L276 IsEmpty]: Start isEmpty. Operand 137091 states and 191224 transitions. [2024-11-16 08:43:55,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 08:43:55,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:55,603 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:43:55,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 08:43:55,603 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:55,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:55,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1128222412, now seen corresponding path program 1 times [2024-11-16 08:43:55,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:55,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387132684] [2024-11-16 08:43:55,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:55,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:55,689 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 08:43:55,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:55,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387132684] [2024-11-16 08:43:55,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387132684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:55,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:55,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:43:55,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963299741] [2024-11-16 08:43:55,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:55,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:43:55,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:55,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:43:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:55,690 INFO L87 Difference]: Start difference. First operand 137091 states and 191224 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:56,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:43:56,664 INFO L93 Difference]: Finished difference Result 308471 states and 429946 transitions. [2024-11-16 08:43:56,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:43:56,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 177 [2024-11-16 08:43:56,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:43:56,877 INFO L225 Difference]: With dead ends: 308471 [2024-11-16 08:43:56,877 INFO L226 Difference]: Without dead ends: 171543 [2024-11-16 08:43:56,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:56,905 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 96 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:43:56,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 463 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:43:56,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171543 states. [2024-11-16 08:43:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171543 to 166793. [2024-11-16 08:43:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166793 states, 166792 states have (on average 1.3882860089212912) internal successors, (231555), 166792 states have internal predecessors, (231555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:58,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166793 states to 166793 states and 231555 transitions. [2024-11-16 08:43:58,916 INFO L78 Accepts]: Start accepts. Automaton has 166793 states and 231555 transitions. Word has length 177 [2024-11-16 08:43:58,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:43:58,916 INFO L471 AbstractCegarLoop]: Abstraction has 166793 states and 231555 transitions. [2024-11-16 08:43:58,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:43:58,916 INFO L276 IsEmpty]: Start isEmpty. Operand 166793 states and 231555 transitions. [2024-11-16 08:43:58,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 08:43:58,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:43:58,939 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 08:43:58,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 08:43:58,939 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:43:58,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:43:58,939 INFO L85 PathProgramCache]: Analyzing trace with hash 503760509, now seen corresponding path program 1 times [2024-11-16 08:43:58,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:43:58,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950640999] [2024-11-16 08:43:58,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:43:58,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:43:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:43:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-16 08:43:59,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:43:59,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950640999] [2024-11-16 08:43:59,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950640999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:43:59,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:43:59,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:43:59,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011387062] [2024-11-16 08:43:59,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:43:59,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:43:59,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:43:59,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:43:59,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:43:59,608 INFO L87 Difference]: Start difference. First operand 166793 states and 231555 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:00,172 INFO L93 Difference]: Finished difference Result 323693 states and 448101 transitions. [2024-11-16 08:44:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:44:00,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 178 [2024-11-16 08:44:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:00,353 INFO L225 Difference]: With dead ends: 323693 [2024-11-16 08:44:00,353 INFO L226 Difference]: Without dead ends: 157051 [2024-11-16 08:44:00,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:44:00,462 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 82 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:00,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 472 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:44:00,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157051 states. [2024-11-16 08:44:02,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157051 to 154265. [2024-11-16 08:44:02,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154265 states, 154264 states have (on average 1.3747018098843542) internal successors, (212067), 154264 states have internal predecessors, (212067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154265 states to 154265 states and 212067 transitions. [2024-11-16 08:44:02,680 INFO L78 Accepts]: Start accepts. Automaton has 154265 states and 212067 transitions. Word has length 178 [2024-11-16 08:44:02,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:02,680 INFO L471 AbstractCegarLoop]: Abstraction has 154265 states and 212067 transitions. [2024-11-16 08:44:02,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 154265 states and 212067 transitions. [2024-11-16 08:44:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 08:44:02,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:02,692 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:02,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 08:44:02,692 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:02,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash 590088724, now seen corresponding path program 1 times [2024-11-16 08:44:02,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:02,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221083014] [2024-11-16 08:44:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:44:02,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:02,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221083014] [2024-11-16 08:44:02,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221083014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:02,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:02,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:44:02,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949495028] [2024-11-16 08:44:02,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:02,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:44:02,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:02,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:44:02,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:44:02,781 INFO L87 Difference]: Start difference. First operand 154265 states and 212067 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:03,842 INFO L93 Difference]: Finished difference Result 298637 states and 409125 transitions. [2024-11-16 08:44:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:44:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 179 [2024-11-16 08:44:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:04,067 INFO L225 Difference]: With dead ends: 298637 [2024-11-16 08:44:04,068 INFO L226 Difference]: Without dead ends: 144523 [2024-11-16 08:44:04,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:44:04,148 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 75 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:04,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 473 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:44:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144523 states.