./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.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.7.1.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 3fb71e8e4e407700549b8952f3afdeeffa0973a11e08bb7f18bca04e4b75e49d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:44:32,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:44:32,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:44:32,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:44:32,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:44:32,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:44:32,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:44:32,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:44:32,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:44:32,747 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:44:32,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:44:32,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:44:32,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:44:32,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:44:32,753 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:44:32,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:44:32,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:44:32,754 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:44:32,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:44:32,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:44:32,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:44:32,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:44:32,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:44:32,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:44:32,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:44:32,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:44:32,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:44:32,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:44:32,761 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:44:32,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:44:32,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:44:32,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:44:32,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:44:32,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:44:32,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:44:32,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:44:32,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:44:32,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:44:32,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:44:32,766 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:44:32,766 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:44:32,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:44:32,767 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fb71e8e4e407700549b8952f3afdeeffa0973a11e08bb7f18bca04e4b75e49d [2024-11-16 08:44:33,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:44:33,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:44:33,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:44:33,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:44:33,055 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:44:33,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:44:34,587 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:44:34,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:44:34,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:44:34,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9503a5269/8a98b3e11ef84c14800df6975f826879/FLAG693c6880d [2024-11-16 08:44:35,159 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9503a5269/8a98b3e11ef84c14800df6975f826879 [2024-11-16 08:44:35,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:44:35,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:44:35,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:44:35,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:44:35,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:44:35,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a459f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35, skipping insertion in model container [2024-11-16 08:44:35,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:44:35,561 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10378,10391] [2024-11-16 08:44:35,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:44:35,625 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:44:35,703 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10378,10391] [2024-11-16 08:44:35,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:44:35,788 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:44:35,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35 WrapperNode [2024-11-16 08:44:35,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:44:35,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:44:35,790 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:44:35,790 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:44:35,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,860 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 904 [2024-11-16 08:44:35,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:44:35,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:44:35,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:44:35,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:44:35,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,901 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 08:44:35,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,921 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,936 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:44:35,950 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:44:35,950 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:44:35,950 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:44:35,951 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (1/1) ... [2024-11-16 08:44:35,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:44:35,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:44:35,991 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 08:44:35,997 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 08:44:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:44:36,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:44:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:44:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:44:36,195 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:44:36,198 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:44:37,004 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L598: havoc main_~node3__m3~2#1; [2024-11-16 08:44:37,005 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L814: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:37,005 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L583: havoc main_~node2__m2~2#1; [2024-11-16 08:44:37,005 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L769: havoc main_~node4____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:37,005 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L507: havoc main_~node7__m7~1#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_~node7____CPAchecker_TMP_0~0#1;havoc main_~node7__m7~0#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 08:44:37,005 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L724: havoc main_~node5____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:37,005 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L991: havoc main_~node7____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:37,006 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L859: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:37,006 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L628: havoc main_~node5__m5~2#1; [2024-11-16 08:44:37,006 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L563: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2024-11-16 08:44:37,006 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L910: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:44:37,006 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L679: havoc main_~node6____CPAchecker_TMP_0~1#1;havoc main_~node6__m6~2#1; [2024-11-16 08:44:37,006 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L613: havoc main_~node4__m4~2#1; [2024-11-16 08:44:37,061 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-11-16 08:44:37,061 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:44:37,081 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:44:37,081 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:44:37,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:44:37 BoogieIcfgContainer [2024-11-16 08:44:37,082 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:44:37,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:44:37,086 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:44:37,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:44:37,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:44:35" (1/3) ... [2024-11-16 08:44:37,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5d2d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:44:37, skipping insertion in model container [2024-11-16 08:44:37,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:44:35" (2/3) ... [2024-11-16 08:44:37,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a5d2d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:44:37, skipping insertion in model container [2024-11-16 08:44:37,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:44:37" (3/3) ... [2024-11-16 08:44:37,092 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:44:37,106 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:44:37,106 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:44:37,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:44:37,178 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;@261c43f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:44:37,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:44:37,185 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.7450980392156863) internal successors, (356), 205 states have internal predecessors, (356), 0 states have call successors, (0), 0 states 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 08:44:37,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-16 08:44:37,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:37,195 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 08:44:37,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:37,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:37,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1898404238, now seen corresponding path program 1 times [2024-11-16 08:44:37,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:37,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809616222] [2024-11-16 08:44:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:38,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:38,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809616222] [2024-11-16 08:44:38,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809616222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:38,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:38,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:38,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232228592] [2024-11-16 08:44:38,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:38,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:38,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:38,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:38,177 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.7450980392156863) internal successors, (356), 205 states have internal predecessors, (356), 0 states have call successors, (0), 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 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 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 08:44:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:39,028 INFO L93 Difference]: Finished difference Result 1501 states and 2389 transitions. [2024-11-16 08:44:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:39,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 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 08:44:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:39,056 INFO L225 Difference]: With dead ends: 1501 [2024-11-16 08:44:39,056 INFO L226 Difference]: Without dead ends: 1388 [2024-11-16 08:44:39,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:44:39,065 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 2479 mSDsluCounter, 6944 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2479 SdHoareTripleChecker+Valid, 8025 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:39,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2479 Valid, 8025 Invalid, 575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:44:39,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-16 08:44:39,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 311. [2024-11-16 08:44:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.4387096774193548) internal successors, (446), 310 states have internal predecessors, (446), 0 states have call successors, (0), 0 states 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 08:44:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 446 transitions. [2024-11-16 08:44:39,150 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 446 transitions. Word has length 107 [2024-11-16 08:44:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:39,151 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 446 transitions. [2024-11-16 08:44:39,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 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 08:44:39,151 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 446 transitions. [2024-11-16 08:44:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:39,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:39,154 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:39,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:44:39,155 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:39,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:39,156 INFO L85 PathProgramCache]: Analyzing trace with hash -849450506, now seen corresponding path program 1 times [2024-11-16 08:44:39,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:39,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358355238] [2024-11-16 08:44:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:39,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:39,548 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 08:44:39,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:39,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358355238] [2024-11-16 08:44:39,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358355238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:39,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:39,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:39,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30052996] [2024-11-16 08:44:39,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:39,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:39,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:39,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:39,552 INFO L87 Difference]: Start difference. First operand 311 states and 446 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:40,011 INFO L93 Difference]: Finished difference Result 1627 states and 2503 transitions. [2024-11-16 08:44:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:40,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:40,023 INFO L225 Difference]: With dead ends: 1627 [2024-11-16 08:44:40,023 INFO L226 Difference]: Without dead ends: 1459 [2024-11-16 08:44:40,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:40,026 INFO L432 NwaCegarLoop]: 1054 mSDtfsCounter, 1759 mSDsluCounter, 3874 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 4928 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:40,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 4928 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:44:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-11-16 08:44:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 498. [2024-11-16 08:44:40,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 497 states have (on average 1.488933601609658) internal successors, (740), 497 states have internal predecessors, (740), 0 states have call successors, (0), 0 states 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 08:44:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 740 transitions. [2024-11-16 08:44:40,057 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 740 transitions. Word has length 109 [2024-11-16 08:44:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:40,057 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 740 transitions. [2024-11-16 08:44:40,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:40,058 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 740 transitions. [2024-11-16 08:44:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:40,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:40,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:40,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:44:40,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:40,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:40,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1828313618, now seen corresponding path program 1 times [2024-11-16 08:44:40,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:40,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28201265] [2024-11-16 08:44:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:40,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:40,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:40,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28201265] [2024-11-16 08:44:40,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28201265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:40,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:40,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:40,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327168877] [2024-11-16 08:44:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:40,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:40,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:40,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:40,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:40,371 INFO L87 Difference]: Start difference. First operand 498 states and 740 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:40,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:40,713 INFO L93 Difference]: Finished difference Result 1814 states and 2797 transitions. [2024-11-16 08:44:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:40,713 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:40,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:40,722 INFO L225 Difference]: With dead ends: 1814 [2024-11-16 08:44:40,723 INFO L226 Difference]: Without dead ends: 1646 [2024-11-16 08:44:40,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:40,727 INFO L432 NwaCegarLoop]: 943 mSDtfsCounter, 1754 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:40,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 3763 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:40,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2024-11-16 08:44:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 768. [2024-11-16 08:44:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 767 states have (on average 1.517601043024772) internal successors, (1164), 767 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states 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 08:44:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1164 transitions. [2024-11-16 08:44:40,774 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1164 transitions. Word has length 109 [2024-11-16 08:44:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:40,775 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 1164 transitions. [2024-11-16 08:44:40,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1164 transitions. [2024-11-16 08:44:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:40,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:40,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:40,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:44:40,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:40,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:40,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1619045622, now seen corresponding path program 1 times [2024-11-16 08:44:40,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:40,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047492220] [2024-11-16 08:44:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:40,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:41,069 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 08:44:41,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:41,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047492220] [2024-11-16 08:44:41,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047492220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:41,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:41,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:41,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037339619] [2024-11-16 08:44:41,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:41,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:41,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:41,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:41,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:41,072 INFO L87 Difference]: Start difference. First operand 768 states and 1164 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:41,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:41,463 INFO L93 Difference]: Finished difference Result 1996 states and 3083 transitions. [2024-11-16 08:44:41,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:41,466 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:41,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:41,473 INFO L225 Difference]: With dead ends: 1996 [2024-11-16 08:44:41,473 INFO L226 Difference]: Without dead ends: 1828 [2024-11-16 08:44:41,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:41,475 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 1859 mSDsluCounter, 2970 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:41,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 3802 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:44:41,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2024-11-16 08:44:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 950. [2024-11-16 08:44:41,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 949 states have (on average 1.5279241306638567) internal successors, (1450), 949 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states 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 08:44:41,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1450 transitions. [2024-11-16 08:44:41,506 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1450 transitions. Word has length 109 [2024-11-16 08:44:41,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:41,506 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1450 transitions. [2024-11-16 08:44:41,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:41,507 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1450 transitions. [2024-11-16 08:44:41,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:41,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:41,509 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:41,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:44:41,509 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:41,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:41,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2109915886, now seen corresponding path program 1 times [2024-11-16 08:44:41,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:41,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510379718] [2024-11-16 08:44:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:41,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:41,791 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 08:44:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:41,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510379718] [2024-11-16 08:44:41,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510379718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:41,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:41,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:41,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821587235] [2024-11-16 08:44:41,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:41,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:41,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:41,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:41,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:41,796 INFO L87 Difference]: Start difference. First operand 950 states and 1450 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:42,136 INFO L93 Difference]: Finished difference Result 2173 states and 3361 transitions. [2024-11-16 08:44:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:42,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:42,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:42,143 INFO L225 Difference]: With dead ends: 2173 [2024-11-16 08:44:42,144 INFO L226 Difference]: Without dead ends: 2005 [2024-11-16 08:44:42,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:42,146 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 1965 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 3527 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:42,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 3527 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:42,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2024-11-16 08:44:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 1127. [2024-11-16 08:44:42,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.5346358792184724) internal successors, (1728), 1126 states have internal predecessors, (1728), 0 states have call successors, (0), 0 states 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 08:44:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1728 transitions. [2024-11-16 08:44:42,175 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1728 transitions. Word has length 109 [2024-11-16 08:44:42,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:42,176 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1728 transitions. [2024-11-16 08:44:42,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1728 transitions. [2024-11-16 08:44:42,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:42,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:42,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:42,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:44:42,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:42,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2136027126, now seen corresponding path program 1 times [2024-11-16 08:44:42,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:42,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048930881] [2024-11-16 08:44:42,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:42,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:42,441 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 08:44:42,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:42,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048930881] [2024-11-16 08:44:42,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048930881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:42,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:42,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:42,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154174954] [2024-11-16 08:44:42,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:42,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:42,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:42,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:42,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:42,444 INFO L87 Difference]: Start difference. First operand 1127 states and 1728 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:42,724 INFO L93 Difference]: Finished difference Result 2345 states and 3631 transitions. [2024-11-16 08:44:42,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:42,725 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:42,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:42,734 INFO L225 Difference]: With dead ends: 2345 [2024-11-16 08:44:42,735 INFO L226 Difference]: Without dead ends: 2177 [2024-11-16 08:44:42,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:42,738 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 2072 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:42,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 3226 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:42,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2024-11-16 08:44:42,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1299. [2024-11-16 08:44:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1298 states have (on average 1.539291217257319) internal successors, (1998), 1298 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1998 transitions. [2024-11-16 08:44:42,776 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1998 transitions. Word has length 109 [2024-11-16 08:44:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:42,777 INFO L471 AbstractCegarLoop]: Abstraction has 1299 states and 1998 transitions. [2024-11-16 08:44:42,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1998 transitions. [2024-11-16 08:44:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:42,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:42,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:42,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:44:42,779 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:42,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:42,780 INFO L85 PathProgramCache]: Analyzing trace with hash -445046802, now seen corresponding path program 1 times [2024-11-16 08:44:42,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:42,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376498825] [2024-11-16 08:44:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:42,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:43,051 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 08:44:43,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:43,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376498825] [2024-11-16 08:44:43,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376498825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:43,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:43,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:43,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810876031] [2024-11-16 08:44:43,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:43,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:43,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:43,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:43,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:43,054 INFO L87 Difference]: Start difference. First operand 1299 states and 1998 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:43,356 INFO L93 Difference]: Finished difference Result 2512 states and 3893 transitions. [2024-11-16 08:44:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:43,357 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:43,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:43,365 INFO L225 Difference]: With dead ends: 2512 [2024-11-16 08:44:43,365 INFO L226 Difference]: Without dead ends: 2344 [2024-11-16 08:44:43,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:43,368 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 2174 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:43,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 3538 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:43,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2024-11-16 08:44:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 1466. [2024-11-16 08:44:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 1.5426621160409557) internal successors, (2260), 1465 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states 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 08:44:43,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 2260 transitions. [2024-11-16 08:44:43,414 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 2260 transitions. Word has length 109 [2024-11-16 08:44:43,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:43,415 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 2260 transitions. [2024-11-16 08:44:43,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:43,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 2260 transitions. [2024-11-16 08:44:43,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 08:44:43,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:43,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:43,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:44:43,417 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:43,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:43,418 INFO L85 PathProgramCache]: Analyzing trace with hash -237202546, now seen corresponding path program 1 times [2024-11-16 08:44:43,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:43,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713817339] [2024-11-16 08:44:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:43,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:43,653 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 08:44:43,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:43,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713817339] [2024-11-16 08:44:43,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713817339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:43,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:43,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:43,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971243581] [2024-11-16 08:44:43,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:43,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:43,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:43,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:43,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:43,656 INFO L87 Difference]: Start difference. First operand 1466 states and 2260 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:43,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:43,959 INFO L93 Difference]: Finished difference Result 2678 states and 4154 transitions. [2024-11-16 08:44:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-16 08:44:43,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:43,968 INFO L225 Difference]: With dead ends: 2678 [2024-11-16 08:44:43,969 INFO L226 Difference]: Without dead ends: 2510 [2024-11-16 08:44:43,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-16 08:44:43,971 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 2271 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 3820 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:43,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 3820 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:43,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2024-11-16 08:44:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 1632. [2024-11-16 08:44:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1631 states have (on average 1.545677498467198) internal successors, (2521), 1631 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states 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 08:44:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2521 transitions. [2024-11-16 08:44:44,008 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2521 transitions. Word has length 109 [2024-11-16 08:44:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:44,008 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 2521 transitions. [2024-11-16 08:44:44,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 08:44:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2521 transitions. [2024-11-16 08:44:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 08:44:44,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:44,010 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:44,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:44:44,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:44,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:44,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2103389671, now seen corresponding path program 1 times [2024-11-16 08:44:44,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:44,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191806486] [2024-11-16 08:44:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:44,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:44,534 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 08:44:44,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:44,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191806486] [2024-11-16 08:44:44,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191806486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:44,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:44,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:44,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450735593] [2024-11-16 08:44:44,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:44,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:44,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:44,539 INFO L87 Difference]: Start difference. First operand 1632 states and 2521 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 08:44:44,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:44,939 INFO L93 Difference]: Finished difference Result 3047 states and 4742 transitions. [2024-11-16 08:44:44,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-16 08:44:44,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:44,945 INFO L225 Difference]: With dead ends: 3047 [2024-11-16 08:44:44,945 INFO L226 Difference]: Without dead ends: 1634 [2024-11-16 08:44:44,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:44,948 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 214 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:44,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1537 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-11-16 08:44:44,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1632. [2024-11-16 08:44:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1631 states have (on average 1.5401594114040467) internal successors, (2512), 1631 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states 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 08:44:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2512 transitions. [2024-11-16 08:44:44,973 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2512 transitions. Word has length 110 [2024-11-16 08:44:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:44,974 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 2512 transitions. [2024-11-16 08:44:44,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 9 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 08:44:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2512 transitions. [2024-11-16 08:44:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 08:44:44,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:44,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:44,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:44:44,976 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:44,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:44,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1193875570, now seen corresponding path program 1 times [2024-11-16 08:44:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:44,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812169756] [2024-11-16 08:44:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:44,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:45,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:45,152 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 08:44:45,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:45,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812169756] [2024-11-16 08:44:45,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812169756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:45,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:45,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:45,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700603983] [2024-11-16 08:44:45,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:45,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:45,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:45,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:45,154 INFO L87 Difference]: Start difference. First operand 1632 states and 2512 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 08:44:45,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:45,397 INFO L93 Difference]: Finished difference Result 4718 states and 7329 transitions. [2024-11-16 08:44:45,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:45,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-16 08:44:45,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:45,407 INFO L225 Difference]: With dead ends: 4718 [2024-11-16 08:44:45,408 INFO L226 Difference]: Without dead ends: 3142 [2024-11-16 08:44:45,410 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 08:44:45,411 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1101 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:45,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 247 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:45,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2024-11-16 08:44:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 3140. [2024-11-16 08:44:45,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.5466709143039183) internal successors, (4855), 3139 states have internal predecessors, (4855), 0 states have call successors, (0), 0 states 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 08:44:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4855 transitions. [2024-11-16 08:44:45,462 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4855 transitions. Word has length 111 [2024-11-16 08:44:45,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:45,462 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4855 transitions. [2024-11-16 08:44:45,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 08:44:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4855 transitions. [2024-11-16 08:44:45,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 08:44:45,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:45,464 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:45,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:44:45,465 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:45,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:45,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1518357484, now seen corresponding path program 1 times [2024-11-16 08:44:45,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:45,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751650558] [2024-11-16 08:44:45,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:45,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:45,592 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 08:44:45,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:45,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751650558] [2024-11-16 08:44:45,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751650558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:45,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:45,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869036140] [2024-11-16 08:44:45,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:45,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:45,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:45,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:45,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:45,594 INFO L87 Difference]: Start difference. First operand 3140 states and 4855 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 08:44:45,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:45,771 INFO L93 Difference]: Finished difference Result 6212 states and 9639 transitions. [2024-11-16 08:44:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:45,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-16 08:44:45,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:45,781 INFO L225 Difference]: With dead ends: 6212 [2024-11-16 08:44:45,781 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 08:44:45,784 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 08:44:45,785 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 718 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:45,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 178 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 08:44:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-16 08:44:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.5355208665179993) internal successors, (4820), 3139 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states 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 08:44:45,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4820 transitions. [2024-11-16 08:44:45,840 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4820 transitions. Word has length 112 [2024-11-16 08:44:45,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:45,840 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4820 transitions. [2024-11-16 08:44:45,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 08:44:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4820 transitions. [2024-11-16 08:44:45,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-16 08:44:45,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:45,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:45,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:44:45,842 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:45,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1623163050, now seen corresponding path program 1 times [2024-11-16 08:44:45,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:45,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233852710] [2024-11-16 08:44:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:45,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:45,969 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 08:44:45,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:45,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233852710] [2024-11-16 08:44:45,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233852710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:45,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:45,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:45,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641670325] [2024-11-16 08:44:45,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:45,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:45,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:45,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:45,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:45,973 INFO L87 Difference]: Start difference. First operand 3140 states and 4820 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 08:44:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:46,119 INFO L93 Difference]: Finished difference Result 6200 states and 9555 transitions. [2024-11-16 08:44:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:46,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-16 08:44:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:46,137 INFO L225 Difference]: With dead ends: 6200 [2024-11-16 08:44:46,140 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 08:44:46,144 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 08:44:46,145 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 679 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:46,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 206 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 08:44:46,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-16 08:44:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.5243708187320804) internal successors, (4785), 3139 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states 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 08:44:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4785 transitions. [2024-11-16 08:44:46,195 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4785 transitions. Word has length 113 [2024-11-16 08:44:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:46,195 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4785 transitions. [2024-11-16 08:44:46,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 08:44:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4785 transitions. [2024-11-16 08:44:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-16 08:44:46,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:46,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:46,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:44:46,198 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:46,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1101979952, now seen corresponding path program 1 times [2024-11-16 08:44:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:46,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862041142] [2024-11-16 08:44:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:46,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:46,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862041142] [2024-11-16 08:44:46,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862041142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:46,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:46,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:46,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695668236] [2024-11-16 08:44:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:46,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:46,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:46,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:46,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:46,336 INFO L87 Difference]: Start difference. First operand 3140 states and 4785 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 08:44:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:46,494 INFO L93 Difference]: Finished difference Result 6208 states and 9495 transitions. [2024-11-16 08:44:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:46,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-16 08:44:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:46,501 INFO L225 Difference]: With dead ends: 6208 [2024-11-16 08:44:46,501 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 08:44:46,505 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 08:44:46,509 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 694 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:46,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 186 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:46,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 08:44:46,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-16 08:44:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.5132207709461611) internal successors, (4750), 3139 states have internal predecessors, (4750), 0 states have call successors, (0), 0 states 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 08:44:46,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4750 transitions. [2024-11-16 08:44:46,554 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4750 transitions. Word has length 114 [2024-11-16 08:44:46,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:46,554 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4750 transitions. [2024-11-16 08:44:46,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 08:44:46,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4750 transitions. [2024-11-16 08:44:46,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-16 08:44:46,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:46,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:46,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:44:46,557 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:46,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:46,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1731273450, now seen corresponding path program 1 times [2024-11-16 08:44:46,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:46,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525387908] [2024-11-16 08:44:46,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:46,668 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 08:44:46,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:46,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525387908] [2024-11-16 08:44:46,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525387908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:46,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:46,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:46,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631542705] [2024-11-16 08:44:46,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:46,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:46,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:46,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:46,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:46,670 INFO L87 Difference]: Start difference. First operand 3140 states and 4750 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 08:44:46,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:46,848 INFO L93 Difference]: Finished difference Result 6220 states and 9439 transitions. [2024-11-16 08:44:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:46,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-16 08:44:46,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:46,855 INFO L225 Difference]: With dead ends: 6220 [2024-11-16 08:44:46,855 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 08:44:46,860 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 08:44:46,861 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 722 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:46,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 162 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:46,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 08:44:46,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-16 08:44:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.5020707231602421) internal successors, (4715), 3139 states have internal predecessors, (4715), 0 states have call successors, (0), 0 states 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 08:44:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4715 transitions. [2024-11-16 08:44:46,920 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4715 transitions. Word has length 115 [2024-11-16 08:44:46,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:46,920 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4715 transitions. [2024-11-16 08:44:46,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 08:44:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4715 transitions. [2024-11-16 08:44:46,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 08:44:46,923 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:46,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:46,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:44:46,923 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:46,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash -616857580, now seen corresponding path program 1 times [2024-11-16 08:44:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:46,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222913710] [2024-11-16 08:44:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:46,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:46,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:47,045 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 08:44:47,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:47,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222913710] [2024-11-16 08:44:47,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222913710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:47,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:47,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:47,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610495030] [2024-11-16 08:44:47,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:47,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:47,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:47,047 INFO L87 Difference]: Start difference. First operand 3140 states and 4715 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:44:47,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:47,202 INFO L93 Difference]: Finished difference Result 6216 states and 9365 transitions. [2024-11-16 08:44:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:47,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-16 08:44:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:47,208 INFO L225 Difference]: With dead ends: 6216 [2024-11-16 08:44:47,208 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 08:44:47,212 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 08:44:47,213 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 704 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:47,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 170 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 08:44:47,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-16 08:44:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.490920675374323) internal successors, (4680), 3139 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states 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 08:44:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4680 transitions. [2024-11-16 08:44:47,259 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4680 transitions. Word has length 116 [2024-11-16 08:44:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:47,259 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4680 transitions. [2024-11-16 08:44:47,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 08:44:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4680 transitions. [2024-11-16 08:44:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-16 08:44:47,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:47,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:47,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:44:47,262 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:47,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:47,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1985925626, now seen corresponding path program 1 times [2024-11-16 08:44:47,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:47,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702324892] [2024-11-16 08:44:47,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:47,414 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 08:44:47,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:47,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702324892] [2024-11-16 08:44:47,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702324892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:47,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:47,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:44:47,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731421374] [2024-11-16 08:44:47,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:47,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:44:47,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:47,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:44:47,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:44:47,419 INFO L87 Difference]: Start difference. First operand 3140 states and 4680 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 08:44:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:47,576 INFO L93 Difference]: Finished difference Result 6204 states and 9283 transitions. [2024-11-16 08:44:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:44:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-16 08:44:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:47,582 INFO L225 Difference]: With dead ends: 6204 [2024-11-16 08:44:47,583 INFO L226 Difference]: Without dead ends: 3140 [2024-11-16 08:44:47,587 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 08:44:47,588 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 662 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:47,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 194 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:44:47,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2024-11-16 08:44:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3140. [2024-11-16 08:44:47,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.479770627588404) internal successors, (4645), 3139 states have internal predecessors, (4645), 0 states have call successors, (0), 0 states 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 08:44:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4645 transitions. [2024-11-16 08:44:47,631 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4645 transitions. Word has length 117 [2024-11-16 08:44:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:47,632 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4645 transitions. [2024-11-16 08:44:47,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 08:44:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4645 transitions. [2024-11-16 08:44:47,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 08:44:47,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:47,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:47,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:44:47,634 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:47,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:47,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2064334568, now seen corresponding path program 1 times [2024-11-16 08:44:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457850303] [2024-11-16 08:44:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:48,018 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 08:44:48,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:48,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457850303] [2024-11-16 08:44:48,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457850303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:48,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:48,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636260795] [2024-11-16 08:44:48,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:48,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:48,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:48,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:48,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:48,021 INFO L87 Difference]: Start difference. First operand 3140 states and 4645 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 08:44:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:48,572 INFO L93 Difference]: Finished difference Result 9112 states and 13507 transitions. [2024-11-16 08:44:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 08:44:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:48,583 INFO L225 Difference]: With dead ends: 9112 [2024-11-16 08:44:48,584 INFO L226 Difference]: Without dead ends: 6175 [2024-11-16 08:44:48,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:44:48,590 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1462 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:48,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 713 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2024-11-16 08:44:48,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 3140. [2024-11-16 08:44:48,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.4769034724434533) internal successors, (4636), 3139 states have internal predecessors, (4636), 0 states have call successors, (0), 0 states 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 08:44:48,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4636 transitions. [2024-11-16 08:44:48,655 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4636 transitions. Word has length 118 [2024-11-16 08:44:48,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:48,655 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4636 transitions. [2024-11-16 08:44:48,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 08:44:48,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4636 transitions. [2024-11-16 08:44:48,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 08:44:48,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:48,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:48,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:44:48,657 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:48,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:48,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1707596776, now seen corresponding path program 1 times [2024-11-16 08:44:48,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:48,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879305393] [2024-11-16 08:44:48,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:48,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:49,260 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 08:44:49,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:49,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879305393] [2024-11-16 08:44:49,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879305393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:49,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:49,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:44:49,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372261896] [2024-11-16 08:44:49,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:49,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:44:49,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:49,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:44:49,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:49,263 INFO L87 Difference]: Start difference. First operand 3140 states and 4636 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 08:44:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:50,114 INFO L93 Difference]: Finished difference Result 9217 states and 13588 transitions. [2024-11-16 08:44:50,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:44:50,115 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 08:44:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:50,127 INFO L225 Difference]: With dead ends: 9217 [2024-11-16 08:44:50,127 INFO L226 Difference]: Without dead ends: 6337 [2024-11-16 08:44:50,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:44:50,133 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1563 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:50,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1025 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:44:50,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6337 states. [2024-11-16 08:44:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6337 to 3212. [2024-11-16 08:44:50,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 1.4727499221426348) internal successors, (4729), 3211 states have internal predecessors, (4729), 0 states have call successors, (0), 0 states 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 08:44:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 4729 transitions. [2024-11-16 08:44:50,218 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 4729 transitions. Word has length 118 [2024-11-16 08:44:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:50,219 INFO L471 AbstractCegarLoop]: Abstraction has 3212 states and 4729 transitions. [2024-11-16 08:44:50,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 08:44:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 4729 transitions. [2024-11-16 08:44:50,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-16 08:44:50,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:50,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:50,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:44:50,222 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:50,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1617983968, now seen corresponding path program 1 times [2024-11-16 08:44:50,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:50,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582391616] [2024-11-16 08:44:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:50,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:50,742 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 08:44:50,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:50,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582391616] [2024-11-16 08:44:50,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582391616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:50,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:50,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:44:50,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164897943] [2024-11-16 08:44:50,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:50,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:44:50,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:50,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:44:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:44:50,746 INFO L87 Difference]: Start difference. First operand 3212 states and 4729 transitions. Second operand has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 08:44:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:51,624 INFO L93 Difference]: Finished difference Result 9262 states and 13690 transitions. [2024-11-16 08:44:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:44:51,625 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-16 08:44:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:51,635 INFO L225 Difference]: With dead ends: 9262 [2024-11-16 08:44:51,636 INFO L226 Difference]: Without dead ends: 6262 [2024-11-16 08:44:51,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:44:51,643 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 1040 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:51,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 1264 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:44:51,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2024-11-16 08:44:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 3212. [2024-11-16 08:44:51,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 1.4699470569915913) internal successors, (4720), 3211 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states 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 08:44:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 4720 transitions. [2024-11-16 08:44:51,708 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 4720 transitions. Word has length 118 [2024-11-16 08:44:51,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:51,708 INFO L471 AbstractCegarLoop]: Abstraction has 3212 states and 4720 transitions. [2024-11-16 08:44:51,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.076923076923077) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states 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 08:44:51,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 4720 transitions. [2024-11-16 08:44:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-16 08:44:51,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:51,711 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:51,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:44:51,711 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:51,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash 242936154, now seen corresponding path program 1 times [2024-11-16 08:44:51,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:51,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157194699] [2024-11-16 08:44:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:51,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:52,068 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 08:44:52,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:52,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157194699] [2024-11-16 08:44:52,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157194699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:52,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:52,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:44:52,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998976605] [2024-11-16 08:44:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:52,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:44:52,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:44:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:44:52,072 INFO L87 Difference]: Start difference. First operand 3212 states and 4720 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:52,468 INFO L93 Difference]: Finished difference Result 8984 states and 13298 transitions. [2024-11-16 08:44:52,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:44:52,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-16 08:44:52,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:52,478 INFO L225 Difference]: With dead ends: 8984 [2024-11-16 08:44:52,479 INFO L226 Difference]: Without dead ends: 6036 [2024-11-16 08:44:52,484 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 08:44:52,485 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 589 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:52,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 665 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:44:52,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2024-11-16 08:44:52,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 3212. [2024-11-16 08:44:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 1.4696356275303644) internal successors, (4719), 3211 states have internal predecessors, (4719), 0 states have call successors, (0), 0 states 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 08:44:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 4719 transitions. [2024-11-16 08:44:52,551 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 4719 transitions. Word has length 119 [2024-11-16 08:44:52,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:52,552 INFO L471 AbstractCegarLoop]: Abstraction has 3212 states and 4719 transitions. [2024-11-16 08:44:52,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:52,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 4719 transitions. [2024-11-16 08:44:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 08:44:52,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:52,554 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:52,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:44:52,554 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:52,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:52,555 INFO L85 PathProgramCache]: Analyzing trace with hash -649442224, now seen corresponding path program 1 times [2024-11-16 08:44:52,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:52,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477556869] [2024-11-16 08:44:52,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:52,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:52,908 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 08:44:52,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:52,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477556869] [2024-11-16 08:44:52,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477556869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:52,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:52,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:52,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242180819] [2024-11-16 08:44:52,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:52,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:52,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:52,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:52,911 INFO L87 Difference]: Start difference. First operand 3212 states and 4719 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 08:44:53,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:53,490 INFO L93 Difference]: Finished difference Result 9127 states and 13479 transitions. [2024-11-16 08:44:53,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:53,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-16 08:44:53,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:53,501 INFO L225 Difference]: With dead ends: 9127 [2024-11-16 08:44:53,502 INFO L226 Difference]: Without dead ends: 6235 [2024-11-16 08:44:53,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:44:53,508 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 739 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:53,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1097 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:53,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6235 states. [2024-11-16 08:44:53,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6235 to 3140. [2024-11-16 08:44:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.471169162153552) internal successors, (4618), 3139 states have internal predecessors, (4618), 0 states have call successors, (0), 0 states 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 08:44:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4618 transitions. [2024-11-16 08:44:53,570 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4618 transitions. Word has length 120 [2024-11-16 08:44:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:53,570 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4618 transitions. [2024-11-16 08:44:53,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 08:44:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4618 transitions. [2024-11-16 08:44:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 08:44:53,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:53,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:53,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:44:53,573 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:53,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:53,573 INFO L85 PathProgramCache]: Analyzing trace with hash 212904200, now seen corresponding path program 1 times [2024-11-16 08:44:53,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:53,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310607775] [2024-11-16 08:44:53,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:53,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:54,019 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 08:44:54,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:54,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310607775] [2024-11-16 08:44:54,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310607775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:54,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:54,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:54,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502485404] [2024-11-16 08:44:54,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:54,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:54,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:54,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:54,023 INFO L87 Difference]: Start difference. First operand 3140 states and 4618 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 08:44:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:54,674 INFO L93 Difference]: Finished difference Result 6527 states and 9617 transitions. [2024-11-16 08:44:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:54,675 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-16 08:44:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:54,684 INFO L225 Difference]: With dead ends: 6527 [2024-11-16 08:44:54,685 INFO L226 Difference]: Without dead ends: 3545 [2024-11-16 08:44:54,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:44:54,690 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1158 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:54,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 1064 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:44:54,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2024-11-16 08:44:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3140. [2024-11-16 08:44:54,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.4702134437719019) internal successors, (4615), 3139 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states 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 08:44:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4615 transitions. [2024-11-16 08:44:54,737 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4615 transitions. Word has length 120 [2024-11-16 08:44:54,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:54,738 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4615 transitions. [2024-11-16 08:44:54,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 08:44:54,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4615 transitions. [2024-11-16 08:44:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-16 08:44:54,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:54,740 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:54,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:44:54,740 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:54,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1151829006, now seen corresponding path program 1 times [2024-11-16 08:44:54,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:54,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924830865] [2024-11-16 08:44:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:54,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:55,180 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 08:44:55,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:55,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924830865] [2024-11-16 08:44:55,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924830865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:55,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:55,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:55,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957957503] [2024-11-16 08:44:55,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:55,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:55,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:55,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:55,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:55,182 INFO L87 Difference]: Start difference. First operand 3140 states and 4615 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:55,836 INFO L93 Difference]: Finished difference Result 8937 states and 13197 transitions. [2024-11-16 08:44:55,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-16 08:44:55,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:55,847 INFO L225 Difference]: With dead ends: 8937 [2024-11-16 08:44:55,847 INFO L226 Difference]: Without dead ends: 6100 [2024-11-16 08:44:55,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:44:55,854 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 1025 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:55,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1247 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:44:55,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6100 states. [2024-11-16 08:44:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6100 to 3140. [2024-11-16 08:44:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 3139 states have (on average 1.4660719974514176) internal successors, (4602), 3139 states have internal predecessors, (4602), 0 states have call successors, (0), 0 states 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 08:44:55,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4602 transitions. [2024-11-16 08:44:55,916 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4602 transitions. Word has length 121 [2024-11-16 08:44:55,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:55,916 INFO L471 AbstractCegarLoop]: Abstraction has 3140 states and 4602 transitions. [2024-11-16 08:44:55,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:55,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4602 transitions. [2024-11-16 08:44:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-16 08:44:55,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:55,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:55,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:44:55,921 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:55,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:55,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1429848648, now seen corresponding path program 1 times [2024-11-16 08:44:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:55,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902162752] [2024-11-16 08:44:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:55,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:56,350 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 08:44:56,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:56,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902162752] [2024-11-16 08:44:56,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902162752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:56,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:56,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:44:56,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815416332] [2024-11-16 08:44:56,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:56,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:44:56,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:56,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:44:56,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:44:56,352 INFO L87 Difference]: Start difference. First operand 3140 states and 4602 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:56,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:56,914 INFO L93 Difference]: Finished difference Result 9093 states and 13391 transitions. [2024-11-16 08:44:56,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:44:56,915 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-16 08:44:56,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:56,926 INFO L225 Difference]: With dead ends: 9093 [2024-11-16 08:44:56,926 INFO L226 Difference]: Without dead ends: 6269 [2024-11-16 08:44:56,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:44:56,932 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 1068 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:56,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1057 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:44:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6269 states. [2024-11-16 08:44:56,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 3185. [2024-11-16 08:44:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 3184 states have (on average 1.4641959798994975) internal successors, (4662), 3184 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states 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 08:44:56,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 4662 transitions. [2024-11-16 08:44:56,993 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 4662 transitions. Word has length 122 [2024-11-16 08:44:56,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:56,994 INFO L471 AbstractCegarLoop]: Abstraction has 3185 states and 4662 transitions. [2024-11-16 08:44:56,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 9 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:56,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 4662 transitions. [2024-11-16 08:44:56,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:44:56,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:56,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:56,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:44:56,996 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:56,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:56,996 INFO L85 PathProgramCache]: Analyzing trace with hash 645179682, now seen corresponding path program 1 times [2024-11-16 08:44:56,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:56,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613727104] [2024-11-16 08:44:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:57,790 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 08:44:57,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:57,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613727104] [2024-11-16 08:44:57,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613727104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:57,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:57,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:44:57,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723629157] [2024-11-16 08:44:57,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:57,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:44:57,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:57,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:44:57,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:44:57,793 INFO L87 Difference]: Start difference. First operand 3185 states and 4662 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:58,504 INFO L93 Difference]: Finished difference Result 12571 states and 18598 transitions. [2024-11-16 08:44:58,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:44:58,505 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:44:58,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:58,523 INFO L225 Difference]: With dead ends: 12571 [2024-11-16 08:44:58,523 INFO L226 Difference]: Without dead ends: 11905 [2024-11-16 08:44:58,529 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 08:44:58,530 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 1863 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:58,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 1807 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:44:58,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11905 states. [2024-11-16 08:44:58,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11905 to 3215. [2024-11-16 08:44:58,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3214 states have (on average 1.4645301804604853) internal successors, (4707), 3214 states have internal predecessors, (4707), 0 states have call successors, (0), 0 states 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 08:44:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 4707 transitions. [2024-11-16 08:44:58,621 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 4707 transitions. Word has length 123 [2024-11-16 08:44:58,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:58,622 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 4707 transitions. [2024-11-16 08:44:58,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:58,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 4707 transitions. [2024-11-16 08:44:58,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:44:58,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:58,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:58,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:44:58,638 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:58,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash 409677879, now seen corresponding path program 1 times [2024-11-16 08:44:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:58,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9058471] [2024-11-16 08:44:58,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:58,783 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 08:44:58,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:58,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9058471] [2024-11-16 08:44:58,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9058471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:58,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:44:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110762371] [2024-11-16 08:44:58,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:58,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:44:58,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:44:58,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:44:58,785 INFO L87 Difference]: Start difference. First operand 3215 states and 4707 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:58,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:44:58,823 INFO L93 Difference]: Finished difference Result 8727 states and 12937 transitions. [2024-11-16 08:44:58,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:44:58,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:44:58,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:44:58,833 INFO L225 Difference]: With dead ends: 8727 [2024-11-16 08:44:58,833 INFO L226 Difference]: Without dead ends: 5903 [2024-11-16 08:44:58,839 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 08:44:58,840 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 135 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:44:58,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 568 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:44:58,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2024-11-16 08:44:58,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 5765. [2024-11-16 08:44:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5765 states, 5764 states have (on average 1.465822345593338) internal successors, (8449), 5764 states have internal predecessors, (8449), 0 states have call successors, (0), 0 states 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 08:44:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5765 states to 5765 states and 8449 transitions. [2024-11-16 08:44:58,931 INFO L78 Accepts]: Start accepts. Automaton has 5765 states and 8449 transitions. Word has length 123 [2024-11-16 08:44:58,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:44:58,932 INFO L471 AbstractCegarLoop]: Abstraction has 5765 states and 8449 transitions. [2024-11-16 08:44:58,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:44:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5765 states and 8449 transitions. [2024-11-16 08:44:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:44:58,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:44:58,933 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:44:58,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:44:58,934 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:44:58,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:44:58,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2095938359, now seen corresponding path program 1 times [2024-11-16 08:44:58,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:44:58,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417154402] [2024-11-16 08:44:58,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:44:58,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:44:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:44:59,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:44:59,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:44:59,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417154402] [2024-11-16 08:44:59,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417154402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:44:59,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:44:59,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-16 08:44:59,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885874301] [2024-11-16 08:44:59,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:44:59,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 08:44:59,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:44:59,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 08:44:59,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-16 08:44:59,980 INFO L87 Difference]: Start difference. First operand 5765 states and 8449 transitions. Second operand has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:01,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:01,119 INFO L93 Difference]: Finished difference Result 8367 states and 12287 transitions. [2024-11-16 08:45:01,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:45:01,120 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:45:01,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:01,128 INFO L225 Difference]: With dead ends: 8367 [2024-11-16 08:45:01,128 INFO L226 Difference]: Without dead ends: 7049 [2024-11-16 08:45:01,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:45:01,133 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1314 mSDsluCounter, 3979 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:01,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 4453 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:45:01,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7049 states. [2024-11-16 08:45:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7049 to 5760. [2024-11-16 08:45:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 5759 states have (on average 1.4655322104532036) internal successors, (8440), 5759 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states 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 08:45:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 8440 transitions. [2024-11-16 08:45:01,229 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 8440 transitions. Word has length 123 [2024-11-16 08:45:01,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:01,230 INFO L471 AbstractCegarLoop]: Abstraction has 5760 states and 8440 transitions. [2024-11-16 08:45:01,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.235294117647059) internal successors, (123), 17 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:01,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 8440 transitions. [2024-11-16 08:45:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:45:01,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:01,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:01,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:45:01,232 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:01,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:01,233 INFO L85 PathProgramCache]: Analyzing trace with hash 835573719, now seen corresponding path program 1 times [2024-11-16 08:45:01,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:01,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482910227] [2024-11-16 08:45:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:01,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:01,952 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 08:45:01,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:01,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482910227] [2024-11-16 08:45:01,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482910227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:01,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:01,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:45:01,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025506328] [2024-11-16 08:45:01,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:01,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:45:01,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:01,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:45:01,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:45:01,955 INFO L87 Difference]: Start difference. First operand 5760 states and 8440 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:02,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:02,758 INFO L93 Difference]: Finished difference Result 23570 states and 34727 transitions. [2024-11-16 08:45:02,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:45:02,758 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:45:02,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:02,777 INFO L225 Difference]: With dead ends: 23570 [2024-11-16 08:45:02,777 INFO L226 Difference]: Without dead ends: 22260 [2024-11-16 08:45:02,785 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 08:45:02,785 INFO L432 NwaCegarLoop]: 395 mSDtfsCounter, 1346 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:02,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 3809 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:45:02,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22260 states. [2024-11-16 08:45:02,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22260 to 5738. [2024-11-16 08:45:02,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5738 states, 5737 states have (on average 1.4643541920864562) internal successors, (8401), 5737 states have internal predecessors, (8401), 0 states have call successors, (0), 0 states 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 08:45:02,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5738 states to 5738 states and 8401 transitions. [2024-11-16 08:45:02,944 INFO L78 Accepts]: Start accepts. Automaton has 5738 states and 8401 transitions. Word has length 123 [2024-11-16 08:45:02,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:02,945 INFO L471 AbstractCegarLoop]: Abstraction has 5738 states and 8401 transitions. [2024-11-16 08:45:02,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:02,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5738 states and 8401 transitions. [2024-11-16 08:45:02,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:45:02,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:02,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:02,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:45:02,947 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:02,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:02,947 INFO L85 PathProgramCache]: Analyzing trace with hash 434209455, now seen corresponding path program 1 times [2024-11-16 08:45:02,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:02,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006525659] [2024-11-16 08:45:02,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:02,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:03,703 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 08:45:03,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:03,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006525659] [2024-11-16 08:45:03,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006525659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:03,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:03,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:45:03,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832287846] [2024-11-16 08:45:03,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:03,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:45:03,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:03,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:45:03,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:03,706 INFO L87 Difference]: Start difference. First operand 5738 states and 8401 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:04,300 INFO L93 Difference]: Finished difference Result 12539 states and 18438 transitions. [2024-11-16 08:45:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:45:04,300 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:45:04,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:04,313 INFO L225 Difference]: With dead ends: 12539 [2024-11-16 08:45:04,313 INFO L226 Difference]: Without dead ends: 11209 [2024-11-16 08:45:04,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:45:04,319 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 1135 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:04,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 1876 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:04,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11209 states. [2024-11-16 08:45:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11209 to 5706. [2024-11-16 08:45:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5706 states, 5705 states have (on average 1.4639789658194566) internal successors, (8352), 5705 states have internal predecessors, (8352), 0 states have call successors, (0), 0 states 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 08:45:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5706 states to 5706 states and 8352 transitions. [2024-11-16 08:45:04,418 INFO L78 Accepts]: Start accepts. Automaton has 5706 states and 8352 transitions. Word has length 123 [2024-11-16 08:45:04,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:04,419 INFO L471 AbstractCegarLoop]: Abstraction has 5706 states and 8352 transitions. [2024-11-16 08:45:04,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:04,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5706 states and 8352 transitions. [2024-11-16 08:45:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:45:04,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:04,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:04,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:45:04,421 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:04,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:04,421 INFO L85 PathProgramCache]: Analyzing trace with hash 670302599, now seen corresponding path program 1 times [2024-11-16 08:45:04,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:04,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371289008] [2024-11-16 08:45:04,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:04,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:05,076 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 08:45:05,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:05,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371289008] [2024-11-16 08:45:05,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371289008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:05,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:05,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:45:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263172799] [2024-11-16 08:45:05,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:05,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:45:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:45:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:05,078 INFO L87 Difference]: Start difference. First operand 5706 states and 8352 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:05,611 INFO L93 Difference]: Finished difference Result 12422 states and 18280 transitions. [2024-11-16 08:45:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:45:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:45:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:05,622 INFO L225 Difference]: With dead ends: 12422 [2024-11-16 08:45:05,623 INFO L226 Difference]: Without dead ends: 11072 [2024-11-16 08:45:05,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:45:05,628 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 1336 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:05,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 2028 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11072 states. [2024-11-16 08:45:05,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11072 to 5634. [2024-11-16 08:45:05,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 5633 states have (on average 1.4658263802591869) internal successors, (8257), 5633 states have internal predecessors, (8257), 0 states have call successors, (0), 0 states 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 08:45:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 8257 transitions. [2024-11-16 08:45:05,711 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 8257 transitions. Word has length 123 [2024-11-16 08:45:05,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:05,711 INFO L471 AbstractCegarLoop]: Abstraction has 5634 states and 8257 transitions. [2024-11-16 08:45:05,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:05,711 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 8257 transitions. [2024-11-16 08:45:05,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-16 08:45:05,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:05,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:05,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:45:05,713 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:05,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:05,713 INFO L85 PathProgramCache]: Analyzing trace with hash -663006113, now seen corresponding path program 1 times [2024-11-16 08:45:05,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:05,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249660519] [2024-11-16 08:45:05,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:05,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:06,358 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 08:45:06,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:06,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249660519] [2024-11-16 08:45:06,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249660519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:06,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:06,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-16 08:45:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585108747] [2024-11-16 08:45:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:06,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:45:06,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:45:06,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:45:06,360 INFO L87 Difference]: Start difference. First operand 5634 states and 8257 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:07,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:07,078 INFO L93 Difference]: Finished difference Result 13612 states and 20046 transitions. [2024-11-16 08:45:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 08:45:07,079 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-11-16 08:45:07,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:07,090 INFO L225 Difference]: With dead ends: 13612 [2024-11-16 08:45:07,090 INFO L226 Difference]: Without dead ends: 12282 [2024-11-16 08:45:07,095 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 08:45:07,095 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 1264 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3358 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:07,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 3358 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:45:07,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2024-11-16 08:45:07,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 5576. [2024-11-16 08:45:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 1.467982062780269) internal successors, (8184), 5575 states have internal predecessors, (8184), 0 states have call successors, (0), 0 states 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 08:45:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 8184 transitions. [2024-11-16 08:45:07,175 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 8184 transitions. Word has length 123 [2024-11-16 08:45:07,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:07,175 INFO L471 AbstractCegarLoop]: Abstraction has 5576 states and 8184 transitions. [2024-11-16 08:45:07,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:07,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 8184 transitions. [2024-11-16 08:45:07,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-16 08:45:07,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:07,176 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:07,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 08:45:07,177 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:07,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:07,177 INFO L85 PathProgramCache]: Analyzing trace with hash 34758603, now seen corresponding path program 1 times [2024-11-16 08:45:07,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:07,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436840124] [2024-11-16 08:45:07,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:07,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:08,424 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 08:45:08,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436840124] [2024-11-16 08:45:08,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436840124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:08,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:08,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-16 08:45:08,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444583435] [2024-11-16 08:45:08,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:08,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 08:45:08,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:08,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 08:45:08,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:45:08,426 INFO L87 Difference]: Start difference. First operand 5576 states and 8184 transitions. Second operand has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:09,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:09,890 INFO L93 Difference]: Finished difference Result 17659 states and 26059 transitions. [2024-11-16 08:45:09,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 08:45:09,891 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2024-11-16 08:45:09,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:09,904 INFO L225 Difference]: With dead ends: 17659 [2024-11-16 08:45:09,904 INFO L226 Difference]: Without dead ends: 16393 [2024-11-16 08:45:09,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 08:45:09,911 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 1743 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:09,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 3556 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 08:45:09,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16393 states. [2024-11-16 08:45:10,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16393 to 5576. [2024-11-16 08:45:10,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5576 states, 5575 states have (on average 1.4674439461883408) internal successors, (8181), 5575 states have internal predecessors, (8181), 0 states have call successors, (0), 0 states 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 08:45:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 8181 transitions. [2024-11-16 08:45:10,014 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 8181 transitions. Word has length 124 [2024-11-16 08:45:10,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:10,014 INFO L471 AbstractCegarLoop]: Abstraction has 5576 states and 8181 transitions. [2024-11-16 08:45:10,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 19 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 8181 transitions. [2024-11-16 08:45:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-16 08:45:10,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:10,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:10,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 08:45:10,016 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:10,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1376097730, now seen corresponding path program 1 times [2024-11-16 08:45:10,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:10,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20041764] [2024-11-16 08:45:10,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:10,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:10,633 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 08:45:10,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:10,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20041764] [2024-11-16 08:45:10,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20041764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:10,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:10,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:45:10,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098666775] [2024-11-16 08:45:10,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:10,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:45:10,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:10,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:45:10,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:45:10,636 INFO L87 Difference]: Start difference. First operand 5576 states and 8181 transitions. Second operand has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:10,971 INFO L93 Difference]: Finished difference Result 12218 states and 18016 transitions. [2024-11-16 08:45:10,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 08:45:10,971 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-11-16 08:45:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:10,981 INFO L225 Difference]: With dead ends: 12218 [2024-11-16 08:45:10,981 INFO L226 Difference]: Without dead ends: 10915 [2024-11-16 08:45:10,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:45:10,986 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 1840 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:10,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 1820 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:45:10,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2024-11-16 08:45:11,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 5539. [2024-11-16 08:45:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5538 states have (on average 1.4693029974720115) internal successors, (8137), 5538 states have internal predecessors, (8137), 0 states have call successors, (0), 0 states 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 08:45:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 8137 transitions. [2024-11-16 08:45:11,053 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 8137 transitions. Word has length 125 [2024-11-16 08:45:11,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:11,054 INFO L471 AbstractCegarLoop]: Abstraction has 5539 states and 8137 transitions. [2024-11-16 08:45:11,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 8137 transitions. [2024-11-16 08:45:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:45:11,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:11,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:11,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-16 08:45:11,055 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:11,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:11,055 INFO L85 PathProgramCache]: Analyzing trace with hash -500873, now seen corresponding path program 1 times [2024-11-16 08:45:11,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:11,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406187991] [2024-11-16 08:45:11,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:11,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:11,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:11,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406187991] [2024-11-16 08:45:11,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406187991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:11,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:11,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:45:11,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240900570] [2024-11-16 08:45:11,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:11,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:45:11,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:45:11,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:45:11,122 INFO L87 Difference]: Start difference. First operand 5539 states and 8137 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:11,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:11,171 INFO L93 Difference]: Finished difference Result 15783 states and 23247 transitions. [2024-11-16 08:45:11,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:45:11,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-16 08:45:11,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:11,183 INFO L225 Difference]: With dead ends: 15783 [2024-11-16 08:45:11,183 INFO L226 Difference]: Without dead ends: 10409 [2024-11-16 08:45:11,193 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 08:45:11,194 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 112 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:11,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 593 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:45:11,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10409 states. [2024-11-16 08:45:11,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10409 to 10271. [2024-11-16 08:45:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10271 states, 10270 states have (on average 1.4555988315481987) internal successors, (14949), 10270 states have internal predecessors, (14949), 0 states have call successors, (0), 0 states 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 08:45:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10271 states to 10271 states and 14949 transitions. [2024-11-16 08:45:11,308 INFO L78 Accepts]: Start accepts. Automaton has 10271 states and 14949 transitions. Word has length 126 [2024-11-16 08:45:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:11,308 INFO L471 AbstractCegarLoop]: Abstraction has 10271 states and 14949 transitions. [2024-11-16 08:45:11,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 10271 states and 14949 transitions. [2024-11-16 08:45:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 08:45:11,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:11,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:11,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-16 08:45:11,310 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:11,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1888873299, now seen corresponding path program 1 times [2024-11-16 08:45:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557969672] [2024-11-16 08:45:11,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:12,422 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 08:45:12,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:12,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557969672] [2024-11-16 08:45:12,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557969672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:12,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:12,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-16 08:45:12,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804233402] [2024-11-16 08:45:12,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:12,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 08:45:12,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:12,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 08:45:12,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:45:12,424 INFO L87 Difference]: Start difference. First operand 10271 states and 14949 transitions. Second operand has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:14,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:14,383 INFO L93 Difference]: Finished difference Result 53117 states and 77558 transitions. [2024-11-16 08:45:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 08:45:14,383 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-11-16 08:45:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:14,436 INFO L225 Difference]: With dead ends: 53117 [2024-11-16 08:45:14,436 INFO L226 Difference]: Without dead ends: 50717 [2024-11-16 08:45:14,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=297, Invalid=1185, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 08:45:14,453 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 1528 mSDsluCounter, 6955 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 7614 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:14,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 7614 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:45:14,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50717 states. [2024-11-16 08:45:14,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50717 to 10259. [2024-11-16 08:45:14,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10259 states, 10258 states have (on average 1.4559368297913824) internal successors, (14935), 10258 states have internal predecessors, (14935), 0 states have call successors, (0), 0 states 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 08:45:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10259 states to 10259 states and 14935 transitions. [2024-11-16 08:45:14,728 INFO L78 Accepts]: Start accepts. Automaton has 10259 states and 14935 transitions. Word has length 126 [2024-11-16 08:45:14,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:14,728 INFO L471 AbstractCegarLoop]: Abstraction has 10259 states and 14935 transitions. [2024-11-16 08:45:14,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 10259 states and 14935 transitions. [2024-11-16 08:45:14,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:45:14,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:14,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:14,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-16 08:45:14,729 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:14,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:14,730 INFO L85 PathProgramCache]: Analyzing trace with hash 271129797, now seen corresponding path program 1 times [2024-11-16 08:45:14,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:14,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605795441] [2024-11-16 08:45:14,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:14,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:14,924 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 08:45:14,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:14,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605795441] [2024-11-16 08:45:14,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605795441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:14,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:14,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:45:14,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268166132] [2024-11-16 08:45:14,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:14,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:45:14,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:45:14,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:45:14,926 INFO L87 Difference]: Start difference. First operand 10259 states and 14935 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:14,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:14,997 INFO L93 Difference]: Finished difference Result 24723 states and 36105 transitions. [2024-11-16 08:45:14,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:45:14,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-16 08:45:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:15,012 INFO L225 Difference]: With dead ends: 24723 [2024-11-16 08:45:15,012 INFO L226 Difference]: Without dead ends: 14617 [2024-11-16 08:45:15,021 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 08:45:15,021 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 119 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 600 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 08:45:15,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 600 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:45:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14617 states. [2024-11-16 08:45:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14617 to 14555. [2024-11-16 08:45:15,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14555 states, 14554 states have (on average 1.451353579771884) internal successors, (21123), 14554 states have internal predecessors, (21123), 0 states have call successors, (0), 0 states 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 08:45:15,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14555 states to 14555 states and 21123 transitions. [2024-11-16 08:45:15,234 INFO L78 Accepts]: Start accepts. Automaton has 14555 states and 21123 transitions. Word has length 127 [2024-11-16 08:45:15,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:15,234 INFO L471 AbstractCegarLoop]: Abstraction has 14555 states and 21123 transitions. [2024-11-16 08:45:15,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 14555 states and 21123 transitions. [2024-11-16 08:45:15,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-16 08:45:15,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:15,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:15,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-16 08:45:15,236 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:15,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:15,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1912936455, now seen corresponding path program 1 times [2024-11-16 08:45:15,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:15,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787123692] [2024-11-16 08:45:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:15,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:15,550 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 08:45:15,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:15,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787123692] [2024-11-16 08:45:15,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787123692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:15,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:15,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:45:15,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694213873] [2024-11-16 08:45:15,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:15,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:45:15,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:15,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:45:15,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:45:15,552 INFO L87 Difference]: Start difference. First operand 14555 states and 21123 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:15,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:15,607 INFO L93 Difference]: Finished difference Result 14685 states and 21284 transitions. [2024-11-16 08:45:15,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:45:15,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-16 08:45:15,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:15,624 INFO L225 Difference]: With dead ends: 14685 [2024-11-16 08:45:15,624 INFO L226 Difference]: Without dead ends: 14683 [2024-11-16 08:45:15,630 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 08:45:15,631 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 0 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 977 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 08:45:15,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 977 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:45:15,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14683 states. [2024-11-16 08:45:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14683 to 14683. [2024-11-16 08:45:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14683 states, 14682 states have (on average 1.4427870862280343) internal successors, (21183), 14682 states have internal predecessors, (21183), 0 states have call successors, (0), 0 states 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 08:45:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 21183 transitions. [2024-11-16 08:45:15,796 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 21183 transitions. Word has length 127 [2024-11-16 08:45:15,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:15,796 INFO L471 AbstractCegarLoop]: Abstraction has 14683 states and 21183 transitions. [2024-11-16 08:45:15,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:45:15,797 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 21183 transitions. [2024-11-16 08:45:15,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 08:45:15,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:15,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:15,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-16 08:45:15,800 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:15,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2004565335, now seen corresponding path program 1 times [2024-11-16 08:45:15,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:15,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384654897] [2024-11-16 08:45:15,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:15,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:15,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:15,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384654897] [2024-11-16 08:45:15,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384654897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:15,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:15,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:15,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766377723] [2024-11-16 08:45:15,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:15,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:15,960 INFO L87 Difference]: Start difference. First operand 14683 states and 21183 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:16,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:16,375 INFO L93 Difference]: Finished difference Result 49927 states and 72642 transitions. [2024-11-16 08:45:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:16,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-16 08:45:16,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:16,414 INFO L225 Difference]: With dead ends: 49927 [2024-11-16 08:45:16,414 INFO L226 Difference]: Without dead ends: 35397 [2024-11-16 08:45:16,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:16,432 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 1095 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:16,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 637 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:45:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35397 states. [2024-11-16 08:45:16,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35397 to 21899. [2024-11-16 08:45:16,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21899 states, 21898 states have (on average 1.4416841720705087) internal successors, (31570), 21898 states have internal predecessors, (31570), 0 states have call successors, (0), 0 states 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 08:45:16,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21899 states to 21899 states and 31570 transitions. [2024-11-16 08:45:16,730 INFO L78 Accepts]: Start accepts. Automaton has 21899 states and 31570 transitions. Word has length 164 [2024-11-16 08:45:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:16,731 INFO L471 AbstractCegarLoop]: Abstraction has 21899 states and 31570 transitions. [2024-11-16 08:45:16,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 21899 states and 31570 transitions. [2024-11-16 08:45:16,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 08:45:16,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:16,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:16,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-16 08:45:16,733 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:16,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:16,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2091362793, now seen corresponding path program 1 times [2024-11-16 08:45:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725694674] [2024-11-16 08:45:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:16,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:16,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725694674] [2024-11-16 08:45:16,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725694674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:16,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:16,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280037611] [2024-11-16 08:45:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:16,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:16,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:16,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:16,896 INFO L87 Difference]: Start difference. First operand 21899 states and 31570 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:17,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:17,303 INFO L93 Difference]: Finished difference Result 90119 states and 130968 transitions. [2024-11-16 08:45:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:17,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-16 08:45:17,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:17,375 INFO L225 Difference]: With dead ends: 90119 [2024-11-16 08:45:17,375 INFO L226 Difference]: Without dead ends: 68417 [2024-11-16 08:45:17,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:17,408 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1454 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:17,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 501 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68417 states. [2024-11-16 08:45:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68417 to 46239. [2024-11-16 08:45:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46239 states, 46238 states have (on average 1.440719754314633) internal successors, (66616), 46238 states have internal predecessors, (66616), 0 states have call successors, (0), 0 states 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 08:45:18,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46239 states to 46239 states and 66616 transitions. [2024-11-16 08:45:18,049 INFO L78 Accepts]: Start accepts. Automaton has 46239 states and 66616 transitions. Word has length 164 [2024-11-16 08:45:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:18,049 INFO L471 AbstractCegarLoop]: Abstraction has 46239 states and 66616 transitions. [2024-11-16 08:45:18,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 46239 states and 66616 transitions. [2024-11-16 08:45:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 08:45:18,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:18,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:18,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-16 08:45:18,054 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:18,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:18,054 INFO L85 PathProgramCache]: Analyzing trace with hash 622841559, now seen corresponding path program 1 times [2024-11-16 08:45:18,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:18,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091766959] [2024-11-16 08:45:18,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:18,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:18,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091766959] [2024-11-16 08:45:18,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091766959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:18,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:18,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:18,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629549084] [2024-11-16 08:45:18,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:18,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:18,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:18,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:18,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:18,223 INFO L87 Difference]: Start difference. First operand 46239 states and 66616 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:19,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:19,131 INFO L93 Difference]: Finished difference Result 177395 states and 256962 transitions. [2024-11-16 08:45:19,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:19,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-16 08:45:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:19,269 INFO L225 Difference]: With dead ends: 177395 [2024-11-16 08:45:19,269 INFO L226 Difference]: Without dead ends: 131353 [2024-11-16 08:45:19,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:19,550 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1369 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:19,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 499 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:19,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131353 states. [2024-11-16 08:45:20,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131353 to 97559. [2024-11-16 08:45:20,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97559 states, 97558 states have (on average 1.4391848951393018) internal successors, (140404), 97558 states have internal predecessors, (140404), 0 states have call successors, (0), 0 states 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 08:45:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97559 states to 97559 states and 140404 transitions. [2024-11-16 08:45:21,151 INFO L78 Accepts]: Start accepts. Automaton has 97559 states and 140404 transitions. Word has length 164 [2024-11-16 08:45:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:21,151 INFO L471 AbstractCegarLoop]: Abstraction has 97559 states and 140404 transitions. [2024-11-16 08:45:21,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:21,151 INFO L276 IsEmpty]: Start isEmpty. Operand 97559 states and 140404 transitions. [2024-11-16 08:45:21,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 08:45:21,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:21,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:21,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-16 08:45:21,160 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:21,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:21,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1967682487, now seen corresponding path program 1 times [2024-11-16 08:45:21,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:21,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079130100] [2024-11-16 08:45:21,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:21,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:21,416 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:21,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:21,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079130100] [2024-11-16 08:45:21,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079130100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:21,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:21,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:21,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845556833] [2024-11-16 08:45:21,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:21,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:21,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:21,419 INFO L87 Difference]: Start difference. First operand 97559 states and 140404 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:22,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:22,647 INFO L93 Difference]: Finished difference Result 349307 states and 504198 transitions. [2024-11-16 08:45:22,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:22,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-16 08:45:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:23,208 INFO L225 Difference]: With dead ends: 349307 [2024-11-16 08:45:23,209 INFO L226 Difference]: Without dead ends: 251945 [2024-11-16 08:45:23,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:23,302 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1284 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:23,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 497 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:23,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251945 states. [2024-11-16 08:45:25,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251945 to 205479. [2024-11-16 08:45:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205479 states, 205478 states have (on average 1.4374872249097228) internal successors, (295372), 205478 states have internal predecessors, (295372), 0 states have call successors, (0), 0 states 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 08:45:26,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205479 states to 205479 states and 295372 transitions. [2024-11-16 08:45:26,868 INFO L78 Accepts]: Start accepts. Automaton has 205479 states and 295372 transitions. Word has length 164 [2024-11-16 08:45:26,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:26,868 INFO L471 AbstractCegarLoop]: Abstraction has 205479 states and 295372 transitions. [2024-11-16 08:45:26,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 205479 states and 295372 transitions. [2024-11-16 08:45:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 08:45:26,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:26,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:45:26,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-16 08:45:26,885 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:26,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1757065105, now seen corresponding path program 1 times [2024-11-16 08:45:26,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:26,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915267621] [2024-11-16 08:45:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:26,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:27,181 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 08:45:27,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:27,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915267621] [2024-11-16 08:45:27,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915267621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:45:27,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:45:27,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:45:27,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287639984] [2024-11-16 08:45:27,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:45:27,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:45:27,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:27,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:45:27,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:45:27,183 INFO L87 Difference]: Start difference. First operand 205479 states and 295372 transitions. Second operand has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:29,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:45:29,408 INFO L93 Difference]: Finished difference Result 687851 states and 989166 transitions. [2024-11-16 08:45:29,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:45:29,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 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 164 [2024-11-16 08:45:29,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:45:30,860 INFO L225 Difference]: With dead ends: 687851 [2024-11-16 08:45:30,860 INFO L226 Difference]: Without dead ends: 482569 [2024-11-16 08:45:31,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:45:31,020 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1199 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:45:31,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 495 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:45:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482569 states. [2024-11-16 08:45:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482569 to 431879. [2024-11-16 08:45:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431879 states, 431878 states have (on average 1.435803629728766) internal successors, (620092), 431878 states have internal predecessors, (620092), 0 states have call successors, (0), 0 states 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 08:45:39,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431879 states to 431879 states and 620092 transitions. [2024-11-16 08:45:39,013 INFO L78 Accepts]: Start accepts. Automaton has 431879 states and 620092 transitions. Word has length 164 [2024-11-16 08:45:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:45:39,013 INFO L471 AbstractCegarLoop]: Abstraction has 431879 states and 620092 transitions. [2024-11-16 08:45:39,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.428571428571427) internal successors, (164), 6 states have internal predecessors, (164), 0 states have call successors, (0), 0 states 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 08:45:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 431879 states and 620092 transitions. [2024-11-16 08:45:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 08:45:39,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:45:39,021 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:39,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-16 08:45:39,022 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:45:39,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:45:39,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1934893550, now seen corresponding path program 1 times [2024-11-16 08:45:39,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:45:39,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430733325] [2024-11-16 08:45:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:39,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:45:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:39,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:45:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430733325] [2024-11-16 08:45:39,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430733325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:45:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725988055] [2024-11-16 08:45:39,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:45:39,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:45:39,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:45:39,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:45:39,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:45:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:45:39,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 08:45:39,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:45:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:40,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:45:40,266 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:45:40,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725988055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:45:40,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:45:40,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-16 08:45:40,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726611403] [2024-11-16 08:45:40,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:45:40,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 08:45:40,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:45:40,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 08:45:40,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:45:40,270 INFO L87 Difference]: Start difference. First operand 431879 states and 620092 transitions. Second operand has 11 states, 11 states have (on average 26.727272727272727) internal successors, (294), 10 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)