./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 725c5f8c833c7945922f02dcce7a19d2486080a25ed300fe3444b2b9ce738b5e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 16:46:42,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 16:46:42,094 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 16:46:42,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 16:46:42,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 16:46:42,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 16:46:42,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 16:46:42,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 16:46:42,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 16:46:42,129 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 16:46:42,129 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 16:46:42,129 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 16:46:42,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 16:46:42,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 16:46:42,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 16:46:42,132 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 16:46:42,132 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 16:46:42,133 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 16:46:42,133 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 16:46:42,133 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 16:46:42,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 16:46:42,133 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 16:46:42,133 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 16:46:42,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:46:42,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 16:46:42,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 16:46:42,135 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 16:46:42,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 16:46:42,135 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 725c5f8c833c7945922f02dcce7a19d2486080a25ed300fe3444b2b9ce738b5e [2025-02-05 16:46:42,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 16:46:42,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 16:46:42,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 16:46:42,410 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 16:46:42,410 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 16:46:42,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2025-02-05 16:46:43,800 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/66d7f7ebd/1177b2f38cd342298ea1fd0d1bbade25/FLAG8084d3d6b [2025-02-05 16:46:44,175 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 16:46:44,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2025-02-05 16:46:44,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/66d7f7ebd/1177b2f38cd342298ea1fd0d1bbade25/FLAG8084d3d6b [2025-02-05 16:46:44,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/66d7f7ebd/1177b2f38cd342298ea1fd0d1bbade25 [2025-02-05 16:46:44,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 16:46:44,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 16:46:44,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 16:46:44,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 16:46:44,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 16:46:44,229 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353fc2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44, skipping insertion in model container [2025-02-05 16:46:44,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,269 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 16:46:44,490 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7638,7651] [2025-02-05 16:46:44,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:46:44,557 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 16:46:44,609 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7638,7651] [2025-02-05 16:46:44,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 16:46:44,657 INFO L204 MainTranslator]: Completed translation [2025-02-05 16:46:44,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44 WrapperNode [2025-02-05 16:46:44,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 16:46:44,661 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 16:46:44,661 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 16:46:44,661 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 16:46:44,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,734 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 669 [2025-02-05 16:46:44,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 16:46:44,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 16:46:44,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 16:46:44,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 16:46:44,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,789 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]. [2025-02-05 16:46:44,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,790 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 16:46:44,807 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 16:46:44,807 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 16:46:44,807 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 16:46:44,808 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (1/1) ... [2025-02-05 16:46:44,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 16:46:44,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 16:46:44,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 16:46:44,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 16:46:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 16:46:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 16:46:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 16:46:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 16:46:45,002 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 16:46:45,004 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 16:46:45,569 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L764: havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1; [2025-02-05 16:46:45,569 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L649: havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2025-02-05 16:46:45,569 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L534: havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2025-02-05 16:46:45,569 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L310: havoc main_~node3__newmax~0#1; [2025-02-05 16:46:45,570 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L277: havoc main_~node2__newmax~0#1; [2025-02-05 16:46:45,570 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L244: havoc main_~node1__newmax~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r212~0#1, main_~init__tmp___1~0#1, main_~init__r232~0#1, main_~init__tmp___2~0#1, main_~init__r312~0#1, main_~init__tmp___3~0#1, main_~init__r322~0#1, main_~init__tmp___4~0#1, main_~init__tmp___5~0#1; [2025-02-05 16:46:45,570 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L398: havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1; [2025-02-05 16:46:45,640 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2025-02-05 16:46:45,641 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 16:46:45,660 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 16:46:45,661 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 16:46:45,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:46:45 BoogieIcfgContainer [2025-02-05 16:46:45,662 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 16:46:45,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 16:46:45,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 16:46:45,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 16:46:45,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:46:44" (1/3) ... [2025-02-05 16:46:45,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445a1bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:46:45, skipping insertion in model container [2025-02-05 16:46:45,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:46:44" (2/3) ... [2025-02-05 16:46:45,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445a1bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:46:45, skipping insertion in model container [2025-02-05 16:46:45,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:46:45" (3/3) ... [2025-02-05 16:46:45,675 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2025-02-05 16:46:45,692 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 16:46:45,696 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c that has 1 procedures, 143 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-05 16:46:45,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 16:46:45,775 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;@e37f9f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 16:46:45,776 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 16:46:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 141 states have (on average 1.75177304964539) internal successors, (247), 142 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-02-05 16:46:45,788 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:45,789 INFO L218 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] [2025-02-05 16:46:45,789 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:45,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash -104144196, now seen corresponding path program 1 times [2025-02-05 16:46:45,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:45,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64549042] [2025-02-05 16:46:45,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:45,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:45,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-02-05 16:46:46,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-02-05 16:46:46,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:46,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:46,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:46,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64549042] [2025-02-05 16:46:46,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64549042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:46,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:46,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945335380] [2025-02-05 16:46:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:46,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:46,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:46,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:46,332 INFO L87 Difference]: Start difference. First operand has 143 states, 141 states have (on average 1.75177304964539) internal successors, (247), 142 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:46,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:46,430 INFO L93 Difference]: Finished difference Result 317 states and 535 transitions. [2025-02-05 16:46:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:46,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2025-02-05 16:46:46,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:46,440 INFO L225 Difference]: With dead ends: 317 [2025-02-05 16:46:46,440 INFO L226 Difference]: Without dead ends: 219 [2025-02-05 16:46:46,443 INFO L434 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 [2025-02-05 16:46:46,445 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 144 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:46,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 440 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:46,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-02-05 16:46:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 217. [2025-02-05 16:46:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.587962962962963) internal successors, (343), 216 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:46,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 343 transitions. [2025-02-05 16:46:46,488 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 343 transitions. Word has length 56 [2025-02-05 16:46:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:46,488 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 343 transitions. [2025-02-05 16:46:46,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 343 transitions. [2025-02-05 16:46:46,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-05 16:46:46,490 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:46,490 INFO L218 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] [2025-02-05 16:46:46,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 16:46:46,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:46,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:46,491 INFO L85 PathProgramCache]: Analyzing trace with hash -411194612, now seen corresponding path program 1 times [2025-02-05 16:46:46,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:46,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180637216] [2025-02-05 16:46:46,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:46,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:46,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-05 16:46:46,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-05 16:46:46,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:46,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:46,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180637216] [2025-02-05 16:46:46,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180637216] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:46,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:46,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:46,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907819410] [2025-02-05 16:46:46,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:46,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:46,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:46,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:46,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:46,701 INFO L87 Difference]: Start difference. First operand 217 states and 343 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:46,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:46,753 INFO L93 Difference]: Finished difference Result 533 states and 863 transitions. [2025-02-05 16:46:46,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:46,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2025-02-05 16:46:46,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:46,756 INFO L225 Difference]: With dead ends: 533 [2025-02-05 16:46:46,756 INFO L226 Difference]: Without dead ends: 367 [2025-02-05 16:46:46,759 INFO L434 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 [2025-02-05 16:46:46,760 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 125 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 409 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 [2025-02-05 16:46:46,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 409 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:46:46,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-02-05 16:46:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2025-02-05 16:46:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.60989010989011) internal successors, (586), 364 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:46,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 586 transitions. [2025-02-05 16:46:46,792 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 586 transitions. Word has length 58 [2025-02-05 16:46:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:46,793 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 586 transitions. [2025-02-05 16:46:46,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 586 transitions. [2025-02-05 16:46:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-02-05 16:46:46,797 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:46,797 INFO L218 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] [2025-02-05 16:46:46,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 16:46:46,798 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:46,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:46,799 INFO L85 PathProgramCache]: Analyzing trace with hash -211061124, now seen corresponding path program 1 times [2025-02-05 16:46:46,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:46,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703220028] [2025-02-05 16:46:46,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:46,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:46,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-05 16:46:46,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-05 16:46:46,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:46,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:46,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:46,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:46,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703220028] [2025-02-05 16:46:46,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703220028] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:46,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:46,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:46,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357248880] [2025-02-05 16:46:46,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:46,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:46,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:46,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:46,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:46,963 INFO L87 Difference]: Start difference. First operand 365 states and 586 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:47,007 INFO L93 Difference]: Finished difference Result 961 states and 1564 transitions. [2025-02-05 16:46:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:47,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2025-02-05 16:46:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:47,013 INFO L225 Difference]: With dead ends: 961 [2025-02-05 16:46:47,013 INFO L226 Difference]: Without dead ends: 647 [2025-02-05 16:46:47,016 INFO L434 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 [2025-02-05 16:46:47,016 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 119 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 410 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 [2025-02-05 16:46:47,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 410 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:46:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2025-02-05 16:46:47,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2025-02-05 16:46:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.6180124223602483) internal successors, (1042), 644 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 1042 transitions. [2025-02-05 16:46:47,054 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 1042 transitions. Word has length 60 [2025-02-05 16:46:47,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:47,055 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 1042 transitions. [2025-02-05 16:46:47,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,055 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 1042 transitions. [2025-02-05 16:46:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-02-05 16:46:47,058 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:47,059 INFO L218 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] [2025-02-05 16:46:47,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 16:46:47,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:47,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:47,060 INFO L85 PathProgramCache]: Analyzing trace with hash 933793036, now seen corresponding path program 1 times [2025-02-05 16:46:47,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:47,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472865219] [2025-02-05 16:46:47,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:47,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:47,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-05 16:46:47,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-05 16:46:47,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:47,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:47,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472865219] [2025-02-05 16:46:47,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472865219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:47,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:47,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:47,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74205936] [2025-02-05 16:46:47,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:47,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:47,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:47,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:47,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:47,298 INFO L87 Difference]: Start difference. First operand 645 states and 1042 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:47,500 INFO L93 Difference]: Finished difference Result 2801 states and 4612 transitions. [2025-02-05 16:46:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 16:46:47,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2025-02-05 16:46:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:47,510 INFO L225 Difference]: With dead ends: 2801 [2025-02-05 16:46:47,511 INFO L226 Difference]: Without dead ends: 2207 [2025-02-05 16:46:47,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-05 16:46:47,514 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 856 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:47,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1594 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:47,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2025-02-05 16:46:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1164. [2025-02-05 16:46:47,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 1163 states have (on average 1.6268271711092004) internal successors, (1892), 1163 states have internal predecessors, (1892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1892 transitions. [2025-02-05 16:46:47,573 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1892 transitions. Word has length 62 [2025-02-05 16:46:47,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:47,574 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1892 transitions. [2025-02-05 16:46:47,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1892 transitions. [2025-02-05 16:46:47,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-05 16:46:47,578 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:47,578 INFO L218 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] [2025-02-05 16:46:47,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 16:46:47,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:47,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:47,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1115308068, now seen corresponding path program 1 times [2025-02-05 16:46:47,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:47,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923731048] [2025-02-05 16:46:47,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:47,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:47,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-05 16:46:47,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-05 16:46:47,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:47,617 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:47,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:47,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923731048] [2025-02-05 16:46:47,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923731048] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:47,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:47,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:46:47,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19419989] [2025-02-05 16:46:47,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:47,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:46:47,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:47,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:46:47,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:46:47,717 INFO L87 Difference]: Start difference. First operand 1164 states and 1892 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:47,818 INFO L93 Difference]: Finished difference Result 3403 states and 5593 transitions. [2025-02-05 16:46:47,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 16:46:47,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2025-02-05 16:46:47,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:47,828 INFO L225 Difference]: With dead ends: 3403 [2025-02-05 16:46:47,828 INFO L226 Difference]: Without dead ends: 2290 [2025-02-05 16:46:47,830 INFO L434 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 [2025-02-05 16:46:47,831 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 430 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:47,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 737 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2025-02-05 16:46:47,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 1718. [2025-02-05 16:46:47,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1718 states, 1717 states have (on average 1.6319161327897496) internal successors, (2802), 1717 states have internal predecessors, (2802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2802 transitions. [2025-02-05 16:46:47,881 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2802 transitions. Word has length 63 [2025-02-05 16:46:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:47,881 INFO L471 AbstractCegarLoop]: Abstraction has 1718 states and 2802 transitions. [2025-02-05 16:46:47,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2802 transitions. [2025-02-05 16:46:47,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 16:46:47,883 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:47,883 INFO L218 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] [2025-02-05 16:46:47,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 16:46:47,884 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:47,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:47,884 INFO L85 PathProgramCache]: Analyzing trace with hash 242037354, now seen corresponding path program 1 times [2025-02-05 16:46:47,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:47,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273570985] [2025-02-05 16:46:47,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:47,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:47,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 16:46:47,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 16:46:47,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:47,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:48,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:48,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273570985] [2025-02-05 16:46:48,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273570985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:48,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:48,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:48,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673443379] [2025-02-05 16:46:48,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:48,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:48,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:48,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:48,011 INFO L87 Difference]: Start difference. First operand 1718 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:48,060 INFO L93 Difference]: Finished difference Result 3773 states and 6212 transitions. [2025-02-05 16:46:48,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:48,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-02-05 16:46:48,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:48,072 INFO L225 Difference]: With dead ends: 3773 [2025-02-05 16:46:48,072 INFO L226 Difference]: Without dead ends: 2585 [2025-02-05 16:46:48,075 INFO L434 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 [2025-02-05 16:46:48,077 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 132 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:48,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 500 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:46:48,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2025-02-05 16:46:48,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2583. [2025-02-05 16:46:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2582 states have (on average 1.6347792408985282) internal successors, (4221), 2582 states have internal predecessors, (4221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 4221 transitions. [2025-02-05 16:46:48,150 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 4221 transitions. Word has length 64 [2025-02-05 16:46:48,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:48,151 INFO L471 AbstractCegarLoop]: Abstraction has 2583 states and 4221 transitions. [2025-02-05 16:46:48,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 4221 transitions. [2025-02-05 16:46:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 16:46:48,153 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:48,154 INFO L218 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] [2025-02-05 16:46:48,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 16:46:48,154 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:48,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:48,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1522803702, now seen corresponding path program 1 times [2025-02-05 16:46:48,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:48,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225765906] [2025-02-05 16:46:48,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:48,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:48,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 16:46:48,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 16:46:48,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:48,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:48,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:48,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225765906] [2025-02-05 16:46:48,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225765906] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:48,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:48,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:48,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585556512] [2025-02-05 16:46:48,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:48,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:48,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:48,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:48,271 INFO L87 Difference]: Start difference. First operand 2583 states and 4221 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:48,322 INFO L93 Difference]: Finished difference Result 5027 states and 8240 transitions. [2025-02-05 16:46:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:48,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-02-05 16:46:48,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:48,337 INFO L225 Difference]: With dead ends: 5027 [2025-02-05 16:46:48,337 INFO L226 Difference]: Without dead ends: 3593 [2025-02-05 16:46:48,340 INFO L434 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 [2025-02-05 16:46:48,343 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 126 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:48,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 486 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:46:48,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2025-02-05 16:46:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3591. [2025-02-05 16:46:48,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3590 states have (on average 1.6298050139275766) internal successors, (5851), 3590 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 5851 transitions. [2025-02-05 16:46:48,434 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 5851 transitions. Word has length 64 [2025-02-05 16:46:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:48,434 INFO L471 AbstractCegarLoop]: Abstraction has 3591 states and 5851 transitions. [2025-02-05 16:46:48,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 5851 transitions. [2025-02-05 16:46:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 16:46:48,435 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:48,435 INFO L218 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] [2025-02-05 16:46:48,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 16:46:48,435 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:48,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:48,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2144191062, now seen corresponding path program 1 times [2025-02-05 16:46:48,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:48,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028486618] [2025-02-05 16:46:48,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:48,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:48,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 16:46:48,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 16:46:48,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:48,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:48,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:48,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028486618] [2025-02-05 16:46:48,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028486618] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:48,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:48,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:48,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001119057] [2025-02-05 16:46:48,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:48,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:48,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:48,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:48,528 INFO L87 Difference]: Start difference. First operand 3591 states and 5851 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:48,583 INFO L93 Difference]: Finished difference Result 6887 states and 11256 transitions. [2025-02-05 16:46:48,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:48,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-02-05 16:46:48,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:48,603 INFO L225 Difference]: With dead ends: 6887 [2025-02-05 16:46:48,604 INFO L226 Difference]: Without dead ends: 4917 [2025-02-05 16:46:48,608 INFO L434 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 [2025-02-05 16:46:48,609 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 120 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:48,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 463 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:46:48,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2025-02-05 16:46:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4915. [2025-02-05 16:46:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 4914 states have (on average 1.6237281237281238) internal successors, (7979), 4914 states have internal predecessors, (7979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7979 transitions. [2025-02-05 16:46:48,724 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7979 transitions. Word has length 64 [2025-02-05 16:46:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:48,725 INFO L471 AbstractCegarLoop]: Abstraction has 4915 states and 7979 transitions. [2025-02-05 16:46:48,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7979 transitions. [2025-02-05 16:46:48,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-05 16:46:48,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:48,726 INFO L218 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] [2025-02-05 16:46:48,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 16:46:48,726 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:48,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash -213022225, now seen corresponding path program 1 times [2025-02-05 16:46:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:48,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770592335] [2025-02-05 16:46:48,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:48,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-05 16:46:48,765 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-05 16:46:48,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:48,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:48,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:48,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770592335] [2025-02-05 16:46:48,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770592335] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:48,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:48,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:46:48,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376676701] [2025-02-05 16:46:48,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:48,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:46:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:48,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:46:48,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:46:48,885 INFO L87 Difference]: Start difference. First operand 4915 states and 7979 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:49,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:49,065 INFO L93 Difference]: Finished difference Result 15633 states and 25453 transitions. [2025-02-05 16:46:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 16:46:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2025-02-05 16:46:49,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:49,124 INFO L225 Difference]: With dead ends: 15633 [2025-02-05 16:46:49,124 INFO L226 Difference]: Without dead ends: 10803 [2025-02-05 16:46:49,133 INFO L434 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 [2025-02-05 16:46:49,133 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 429 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:49,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 729 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:49,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10803 states. [2025-02-05 16:46:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10803 to 7830. [2025-02-05 16:46:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7830 states, 7829 states have (on average 1.6157874568910462) internal successors, (12650), 7829 states have internal predecessors, (12650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:49,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7830 states to 7830 states and 12650 transitions. [2025-02-05 16:46:49,346 INFO L78 Accepts]: Start accepts. Automaton has 7830 states and 12650 transitions. Word has length 64 [2025-02-05 16:46:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:49,346 INFO L471 AbstractCegarLoop]: Abstraction has 7830 states and 12650 transitions. [2025-02-05 16:46:49,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7830 states and 12650 transitions. [2025-02-05 16:46:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-05 16:46:49,348 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:49,348 INFO L218 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] [2025-02-05 16:46:49,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 16:46:49,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:49,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:49,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1987945759, now seen corresponding path program 1 times [2025-02-05 16:46:49,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:49,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644953368] [2025-02-05 16:46:49,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:49,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-05 16:46:49,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-05 16:46:49,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:49,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:49,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:49,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644953368] [2025-02-05 16:46:49,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644953368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:49,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:49,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:46:49,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520647658] [2025-02-05 16:46:49,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:49,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:46:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:49,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:46:49,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:46:49,463 INFO L87 Difference]: Start difference. First operand 7830 states and 12650 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:49,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:49,600 INFO L93 Difference]: Finished difference Result 24459 states and 39607 transitions. [2025-02-05 16:46:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 16:46:49,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-02-05 16:46:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:49,644 INFO L225 Difference]: With dead ends: 24459 [2025-02-05 16:46:49,645 INFO L226 Difference]: Without dead ends: 16714 [2025-02-05 16:46:49,659 INFO L434 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 [2025-02-05 16:46:49,660 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 427 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:49,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 731 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16714 states. [2025-02-05 16:46:49,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16714 to 12229. [2025-02-05 16:46:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12229 states, 12228 states have (on average 1.6075400719659798) internal successors, (19657), 12228 states have internal predecessors, (19657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:49,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12229 states to 12229 states and 19657 transitions. [2025-02-05 16:46:49,942 INFO L78 Accepts]: Start accepts. Automaton has 12229 states and 19657 transitions. Word has length 65 [2025-02-05 16:46:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:49,942 INFO L471 AbstractCegarLoop]: Abstraction has 12229 states and 19657 transitions. [2025-02-05 16:46:49,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:49,943 INFO L276 IsEmpty]: Start isEmpty. Operand 12229 states and 19657 transitions. [2025-02-05 16:46:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-05 16:46:49,943 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:49,943 INFO L218 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] [2025-02-05 16:46:49,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 16:46:49,944 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:49,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash -793087295, now seen corresponding path program 1 times [2025-02-05 16:46:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:49,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799851533] [2025-02-05 16:46:49,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:49,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:49,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-05 16:46:49,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-05 16:46:49,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:49,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:50,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:50,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:50,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799851533] [2025-02-05 16:46:50,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799851533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:50,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:50,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:50,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597099645] [2025-02-05 16:46:50,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:50,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:50,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:50,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:50,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:50,173 INFO L87 Difference]: Start difference. First operand 12229 states and 19657 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:50,312 INFO L93 Difference]: Finished difference Result 24375 states and 39196 transitions. [2025-02-05 16:46:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:46:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-02-05 16:46:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:50,449 INFO L225 Difference]: With dead ends: 24375 [2025-02-05 16:46:50,449 INFO L226 Difference]: Without dead ends: 12231 [2025-02-05 16:46:50,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:46:50,463 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 239 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:50,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 589 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:50,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12231 states. [2025-02-05 16:46:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12231 to 12229. [2025-02-05 16:46:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12229 states, 12228 states have (on average 1.597317631665031) internal successors, (19532), 12228 states have internal predecessors, (19532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12229 states to 12229 states and 19532 transitions. [2025-02-05 16:46:50,661 INFO L78 Accepts]: Start accepts. Automaton has 12229 states and 19532 transitions. Word has length 67 [2025-02-05 16:46:50,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:50,661 INFO L471 AbstractCegarLoop]: Abstraction has 12229 states and 19532 transitions. [2025-02-05 16:46:50,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:50,662 INFO L276 IsEmpty]: Start isEmpty. Operand 12229 states and 19532 transitions. [2025-02-05 16:46:50,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-05 16:46:50,662 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:50,662 INFO L218 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] [2025-02-05 16:46:50,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 16:46:50,663 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:50,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1139080185, now seen corresponding path program 1 times [2025-02-05 16:46:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:50,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524249914] [2025-02-05 16:46:50,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:50,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:50,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-05 16:46:50,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-05 16:46:50,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:50,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:50,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:50,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524249914] [2025-02-05 16:46:50,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524249914] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:50,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:50,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:50,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79994448] [2025-02-05 16:46:50,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:50,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:50,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:50,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:50,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:50,922 INFO L87 Difference]: Start difference. First operand 12229 states and 19532 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:51,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:51,120 INFO L93 Difference]: Finished difference Result 35007 states and 56056 transitions. [2025-02-05 16:46:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:46:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2025-02-05 16:46:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:51,177 INFO L225 Difference]: With dead ends: 35007 [2025-02-05 16:46:51,177 INFO L226 Difference]: Without dead ends: 22863 [2025-02-05 16:46:51,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-05 16:46:51,201 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 118 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:51,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 787 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:51,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22863 states. [2025-02-05 16:46:51,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22863 to 22861. [2025-02-05 16:46:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22861 states, 22860 states have (on average 1.585870516185477) internal successors, (36253), 22860 states have internal predecessors, (36253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:51,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22861 states to 22861 states and 36253 transitions. [2025-02-05 16:46:51,609 INFO L78 Accepts]: Start accepts. Automaton has 22861 states and 36253 transitions. Word has length 70 [2025-02-05 16:46:51,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:51,610 INFO L471 AbstractCegarLoop]: Abstraction has 22861 states and 36253 transitions. [2025-02-05 16:46:51,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 22861 states and 36253 transitions. [2025-02-05 16:46:51,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-05 16:46:51,612 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:51,612 INFO L218 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] [2025-02-05 16:46:51,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 16:46:51,612 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:51,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:51,613 INFO L85 PathProgramCache]: Analyzing trace with hash 952702734, now seen corresponding path program 1 times [2025-02-05 16:46:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:51,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701165479] [2025-02-05 16:46:51,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:51,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:51,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-02-05 16:46:51,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-02-05 16:46:51,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:51,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:52,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:46:52,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:52,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701165479] [2025-02-05 16:46:52,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701165479] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:52,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:52,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:52,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278617632] [2025-02-05 16:46:52,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:52,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:52,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:52,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:52,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:52,070 INFO L87 Difference]: Start difference. First operand 22861 states and 36253 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:52,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:52,163 INFO L93 Difference]: Finished difference Result 23587 states and 37340 transitions. [2025-02-05 16:46:52,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:46:52,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2025-02-05 16:46:52,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:52,215 INFO L225 Difference]: With dead ends: 23587 [2025-02-05 16:46:52,215 INFO L226 Difference]: Without dead ends: 23585 [2025-02-05 16:46:52,226 INFO L434 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 [2025-02-05 16:46:52,227 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:52,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 843 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:46:52,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23585 states. [2025-02-05 16:46:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23585 to 23585. [2025-02-05 16:46:52,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23585 states, 23584 states have (on average 1.567503392130258) internal successors, (36968), 23584 states have internal predecessors, (36968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:52,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23585 states to 23585 states and 36968 transitions. [2025-02-05 16:46:52,509 INFO L78 Accepts]: Start accepts. Automaton has 23585 states and 36968 transitions. Word has length 71 [2025-02-05 16:46:52,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:52,509 INFO L471 AbstractCegarLoop]: Abstraction has 23585 states and 36968 transitions. [2025-02-05 16:46:52,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 23585 states and 36968 transitions. [2025-02-05 16:46:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-05 16:46:52,512 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:52,512 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:46:52,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 16:46:52,512 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:52,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:52,513 INFO L85 PathProgramCache]: Analyzing trace with hash 8420997, now seen corresponding path program 1 times [2025-02-05 16:46:52,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:52,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481322804] [2025-02-05 16:46:52,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:52,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:52,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-05 16:46:52,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-05 16:46:52,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:52,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 16:46:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481322804] [2025-02-05 16:46:52,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481322804] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:52,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:52,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:52,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973287618] [2025-02-05 16:46:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:52,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:52,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:52,736 INFO L87 Difference]: Start difference. First operand 23585 states and 36968 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:52,964 INFO L93 Difference]: Finished difference Result 57661 states and 90684 transitions. [2025-02-05 16:46:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:46:52,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2025-02-05 16:46:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:53,084 INFO L225 Difference]: With dead ends: 57661 [2025-02-05 16:46:53,084 INFO L226 Difference]: Without dead ends: 46299 [2025-02-05 16:46:53,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:46:53,115 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 543 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:53,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1064 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46299 states. [2025-02-05 16:46:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46299 to 36193. [2025-02-05 16:46:53,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36193 states, 36192 states have (on average 1.5653183023872679) internal successors, (56652), 36192 states have internal predecessors, (56652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:53,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36193 states to 36193 states and 56652 transitions. [2025-02-05 16:46:53,749 INFO L78 Accepts]: Start accepts. Automaton has 36193 states and 56652 transitions. Word has length 95 [2025-02-05 16:46:53,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:53,750 INFO L471 AbstractCegarLoop]: Abstraction has 36193 states and 56652 transitions. [2025-02-05 16:46:53,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:53,750 INFO L276 IsEmpty]: Start isEmpty. Operand 36193 states and 56652 transitions. [2025-02-05 16:46:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-05 16:46:53,752 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:53,753 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:46:53,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 16:46:53,753 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:53,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:53,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1756420059, now seen corresponding path program 1 times [2025-02-05 16:46:53,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:53,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369506139] [2025-02-05 16:46:53,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:53,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:53,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-05 16:46:53,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-05 16:46:53,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:53,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-05 16:46:54,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:54,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369506139] [2025-02-05 16:46:54,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369506139] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:54,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:54,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:54,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789787591] [2025-02-05 16:46:54,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:54,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:54,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:54,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:54,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:54,046 INFO L87 Difference]: Start difference. First operand 36193 states and 56652 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:54,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:54,425 INFO L93 Difference]: Finished difference Result 64663 states and 101696 transitions. [2025-02-05 16:46:54,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:46:54,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2025-02-05 16:46:54,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:54,551 INFO L225 Difference]: With dead ends: 64663 [2025-02-05 16:46:54,551 INFO L226 Difference]: Without dead ends: 53531 [2025-02-05 16:46:54,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:46:54,571 INFO L435 NwaCegarLoop]: 353 mSDtfsCounter, 550 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:54,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 978 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:54,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53531 states. [2025-02-05 16:46:55,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53531 to 49013. [2025-02-05 16:46:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49013 states, 49012 states have (on average 1.5667183546886476) internal successors, (76788), 49012 states have internal predecessors, (76788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:55,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49013 states to 49013 states and 76788 transitions. [2025-02-05 16:46:55,434 INFO L78 Accepts]: Start accepts. Automaton has 49013 states and 76788 transitions. Word has length 95 [2025-02-05 16:46:55,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:55,434 INFO L471 AbstractCegarLoop]: Abstraction has 49013 states and 76788 transitions. [2025-02-05 16:46:55,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:55,435 INFO L276 IsEmpty]: Start isEmpty. Operand 49013 states and 76788 transitions. [2025-02-05 16:46:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-05 16:46:55,437 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:55,437 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:46:55,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 16:46:55,437 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:55,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:55,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1917159877, now seen corresponding path program 1 times [2025-02-05 16:46:55,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:55,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98320394] [2025-02-05 16:46:55,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:55,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:55,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-05 16:46:55,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-05 16:46:55,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:55,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 16:46:55,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:55,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98320394] [2025-02-05 16:46:55,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98320394] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:55,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:55,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 16:46:55,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829535643] [2025-02-05 16:46:55,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:55,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 16:46:55,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:55,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 16:46:55,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 16:46:55,670 INFO L87 Difference]: Start difference. First operand 49013 states and 76788 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:55,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:55,992 INFO L93 Difference]: Finished difference Result 69083 states and 108644 transitions. [2025-02-05 16:46:55,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 16:46:55,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2025-02-05 16:46:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:56,114 INFO L225 Difference]: With dead ends: 69083 [2025-02-05 16:46:56,115 INFO L226 Difference]: Without dead ends: 57951 [2025-02-05 16:46:56,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-05 16:46:56,154 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 555 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:56,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1065 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57951 states. [2025-02-05 16:46:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57951 to 56153. [2025-02-05 16:46:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56153 states, 56152 states have (on average 1.5683145747257443) internal successors, (88064), 56152 states have internal predecessors, (88064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:57,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56153 states to 56153 states and 88064 transitions. [2025-02-05 16:46:57,073 INFO L78 Accepts]: Start accepts. Automaton has 56153 states and 88064 transitions. Word has length 95 [2025-02-05 16:46:57,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:57,073 INFO L471 AbstractCegarLoop]: Abstraction has 56153 states and 88064 transitions. [2025-02-05 16:46:57,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:57,074 INFO L276 IsEmpty]: Start isEmpty. Operand 56153 states and 88064 transitions. [2025-02-05 16:46:57,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-05 16:46:57,076 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:57,076 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:46:57,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-05 16:46:57,077 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:57,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:57,078 INFO L85 PathProgramCache]: Analyzing trace with hash 262929795, now seen corresponding path program 1 times [2025-02-05 16:46:57,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:57,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033169880] [2025-02-05 16:46:57,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:57,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:57,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-05 16:46:57,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-05 16:46:57,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:57,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 16:46:57,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:57,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033169880] [2025-02-05 16:46:57,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033169880] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:57,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:57,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 16:46:57,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952316618] [2025-02-05 16:46:57,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:57,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 16:46:57,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:57,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 16:46:57,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:46:57,200 INFO L87 Difference]: Start difference. First operand 56153 states and 88064 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:57,547 INFO L93 Difference]: Finished difference Result 91416 states and 144033 transitions. [2025-02-05 16:46:57,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 16:46:57,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2025-02-05 16:46:57,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:57,909 INFO L225 Difference]: With dead ends: 91416 [2025-02-05 16:46:57,910 INFO L226 Difference]: Without dead ends: 72822 [2025-02-05 16:46:57,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 16:46:57,927 INFO L435 NwaCegarLoop]: 347 mSDtfsCounter, 241 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:57,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 751 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 16:46:57,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72822 states. [2025-02-05 16:46:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72822 to 71026. [2025-02-05 16:46:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71026 states, 71025 states have (on average 1.5684899683210136) internal successors, (111402), 71025 states have internal predecessors, (111402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71026 states to 71026 states and 111402 transitions. [2025-02-05 16:46:59,196 INFO L78 Accepts]: Start accepts. Automaton has 71026 states and 111402 transitions. Word has length 96 [2025-02-05 16:46:59,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:46:59,196 INFO L471 AbstractCegarLoop]: Abstraction has 71026 states and 111402 transitions. [2025-02-05 16:46:59,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:59,196 INFO L276 IsEmpty]: Start isEmpty. Operand 71026 states and 111402 transitions. [2025-02-05 16:46:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-05 16:46:59,199 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:46:59,199 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:46:59,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-05 16:46:59,199 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:46:59,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:46:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash -554718655, now seen corresponding path program 1 times [2025-02-05 16:46:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:46:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516523480] [2025-02-05 16:46:59,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:46:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:46:59,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-05 16:46:59,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-05 16:46:59,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:46:59,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:46:59,275 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 16:46:59,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:46:59,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516523480] [2025-02-05 16:46:59,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516523480] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:46:59,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:46:59,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:46:59,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829466594] [2025-02-05 16:46:59,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:46:59,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:46:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:46:59,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:46:59,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:46:59,277 INFO L87 Difference]: Start difference. First operand 71026 states and 111402 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:46:59,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:46:59,688 INFO L93 Difference]: Finished difference Result 153118 states and 240882 transitions. [2025-02-05 16:46:59,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:46:59,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2025-02-05 16:46:59,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:46:59,885 INFO L225 Difference]: With dead ends: 153118 [2025-02-05 16:46:59,886 INFO L226 Difference]: Without dead ends: 119820 [2025-02-05 16:46:59,954 INFO L434 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 [2025-02-05 16:46:59,954 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 110 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:46:59,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 398 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:47:00,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119820 states. [2025-02-05 16:47:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119820 to 119542. [2025-02-05 16:47:01,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119542 states, 119541 states have (on average 1.5682736466986222) internal successors, (187473), 119541 states have internal predecessors, (187473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119542 states to 119542 states and 187473 transitions. [2025-02-05 16:47:01,672 INFO L78 Accepts]: Start accepts. Automaton has 119542 states and 187473 transitions. Word has length 96 [2025-02-05 16:47:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:47:01,672 INFO L471 AbstractCegarLoop]: Abstraction has 119542 states and 187473 transitions. [2025-02-05 16:47:01,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 119542 states and 187473 transitions. [2025-02-05 16:47:01,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 16:47:01,675 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:47:01,675 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:47:01,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-05 16:47:01,676 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:47:01,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:47:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash 318503739, now seen corresponding path program 1 times [2025-02-05 16:47:01,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:47:01,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054799514] [2025-02-05 16:47:01,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:47:01,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:47:01,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 16:47:01,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 16:47:01,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:47:01,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:47:01,767 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:47:01,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:47:01,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054799514] [2025-02-05 16:47:01,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054799514] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:47:01,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:47:01,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:47:01,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335182400] [2025-02-05 16:47:01,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:47:01,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:47:01,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:47:01,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:47:01,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:47:01,770 INFO L87 Difference]: Start difference. First operand 119542 states and 187473 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:47:03,233 INFO L93 Difference]: Finished difference Result 351457 states and 550565 transitions. [2025-02-05 16:47:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:47:03,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-02-05 16:47:03,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:47:03,601 INFO L225 Difference]: With dead ends: 351457 [2025-02-05 16:47:03,601 INFO L226 Difference]: Without dead ends: 231986 [2025-02-05 16:47:03,684 INFO L434 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 [2025-02-05 16:47:03,684 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 146 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:47:03,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 487 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:47:03,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231986 states. [2025-02-05 16:47:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231986 to 231984. [2025-02-05 16:47:06,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231984 states, 231983 states have (on average 1.5560622976683636) internal successors, (360980), 231983 states have internal predecessors, (360980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:06,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231984 states to 231984 states and 360980 transitions. [2025-02-05 16:47:06,596 INFO L78 Accepts]: Start accepts. Automaton has 231984 states and 360980 transitions. Word has length 97 [2025-02-05 16:47:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:47:06,596 INFO L471 AbstractCegarLoop]: Abstraction has 231984 states and 360980 transitions. [2025-02-05 16:47:06,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 231984 states and 360980 transitions. [2025-02-05 16:47:06,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 16:47:06,601 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:47:06,601 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:47:06,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-05 16:47:06,601 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:47:06,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:47:06,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1268782501, now seen corresponding path program 1 times [2025-02-05 16:47:06,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:47:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886999144] [2025-02-05 16:47:06,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:47:06,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:47:06,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 16:47:06,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 16:47:06,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:47:06,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:47:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:47:06,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:47:06,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886999144] [2025-02-05 16:47:06,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886999144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:47:06,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:47:06,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:47:06,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203309915] [2025-02-05 16:47:06,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:47:06,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:47:06,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:47:06,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:47:06,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:47:06,683 INFO L87 Difference]: Start difference. First operand 231984 states and 360980 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:47:09,483 INFO L93 Difference]: Finished difference Result 681651 states and 1059301 transitions. [2025-02-05 16:47:09,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:47:09,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-02-05 16:47:09,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:47:10,401 INFO L225 Difference]: With dead ends: 681651 [2025-02-05 16:47:10,402 INFO L226 Difference]: Without dead ends: 449811 [2025-02-05 16:47:10,553 INFO L434 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 [2025-02-05 16:47:10,553 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 165 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:47:10,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 525 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:47:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449811 states. [2025-02-05 16:47:15,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449811 to 449809. [2025-02-05 16:47:15,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449809 states, 449808 states have (on average 1.543096165475047) internal successors, (694097), 449808 states have internal predecessors, (694097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:16,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449809 states to 449809 states and 694097 transitions. [2025-02-05 16:47:16,918 INFO L78 Accepts]: Start accepts. Automaton has 449809 states and 694097 transitions. Word has length 97 [2025-02-05 16:47:16,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 16:47:16,918 INFO L471 AbstractCegarLoop]: Abstraction has 449809 states and 694097 transitions. [2025-02-05 16:47:16,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:16,919 INFO L276 IsEmpty]: Start isEmpty. Operand 449809 states and 694097 transitions. [2025-02-05 16:47:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 16:47:16,923 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 16:47:16,923 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 16:47:16,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-05 16:47:16,924 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 16:47:16,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 16:47:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1747102909, now seen corresponding path program 1 times [2025-02-05 16:47:16,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 16:47:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735274333] [2025-02-05 16:47:16,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 16:47:16,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 16:47:16,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 16:47:16,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 16:47:16,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 16:47:16,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 16:47:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 16:47:17,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 16:47:17,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735274333] [2025-02-05 16:47:17,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735274333] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 16:47:17,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 16:47:17,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 16:47:17,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667019383] [2025-02-05 16:47:17,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 16:47:17,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 16:47:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 16:47:17,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 16:47:17,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 16:47:17,657 INFO L87 Difference]: Start difference. First operand 449809 states and 694097 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 16:47:20,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 16:47:20,771 INFO L93 Difference]: Finished difference Result 832177 states and 1285611 transitions. [2025-02-05 16:47:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 16:47:20,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-02-05 16:47:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 16:47:21,463 INFO L225 Difference]: With dead ends: 832177 [2025-02-05 16:47:21,463 INFO L226 Difference]: Without dead ends: 382643 [2025-02-05 16:47:21,619 INFO L434 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 [2025-02-05 16:47:21,619 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 94 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 16:47:21,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 482 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 16:47:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382643 states.