./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35eb4fe61244b47e62120cf84d8eaed931ae7a7b0a5140717764703691b11b75 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 19:29:32,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 19:29:32,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 19:29:32,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 19:29:32,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 19:29:32,598 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 19:29:32,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 19:29:32,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 19:29:32,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 19:29:32,600 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 19:29:32,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 19:29:32,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 19:29:32,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 19:29:32,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 19:29:32,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 19:29:32,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 19:29:32,603 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 19:29:32,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:29:32,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 19:29:32,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 19:29:32,605 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/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 -> 35eb4fe61244b47e62120cf84d8eaed931ae7a7b0a5140717764703691b11b75 [2025-03-16 19:29:32,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 19:29:32,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 19:29:32,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 19:29:32,849 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 19:29:32,849 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 19:29:32,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2025-03-16 19:29:33,971 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f95981be/05e3219b1187430d934683cab8f27713/FLAG5f265eee8 [2025-03-16 19:29:34,261 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 19:29:34,263 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2025-03-16 19:29:34,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f95981be/05e3219b1187430d934683cab8f27713/FLAG5f265eee8 [2025-03-16 19:29:34,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f95981be/05e3219b1187430d934683cab8f27713 [2025-03-16 19:29:34,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 19:29:34,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 19:29:34,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 19:29:34,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 19:29:34,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 19:29:34,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ff894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34, skipping insertion in model container [2025-03-16 19:29:34,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 19:29:34,507 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2025-03-16 19:29:34,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:29:34,560 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 19:29:34,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c[10021,10034] [2025-03-16 19:29:34,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 19:29:34,661 INFO L204 MainTranslator]: Completed translation [2025-03-16 19:29:34,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34 WrapperNode [2025-03-16 19:29:34,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 19:29:34,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 19:29:34,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 19:29:34,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 19:29:34,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,707 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1021 [2025-03-16 19:29:34,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 19:29:34,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 19:29:34,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 19:29:34,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 19:29:34,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,718 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,741 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]. [2025-03-16 19:29:34,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 19:29:34,761 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 19:29:34,761 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 19:29:34,761 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 19:29:34,762 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (1/1) ... [2025-03-16 19:29:34,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 19:29:34,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 19:29:34,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 19:29:34,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 19:29:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 19:29:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 19:29:34,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 19:29:34,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 19:29:34,918 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 19:29:34,919 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L335: havoc main_~node6__m6~0#1;havoc main_~node5____CPAchecker_TMP_0~0#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L831: havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L272: havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: havoc main_~node1__m1~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1464: havoc main_~node3____CPAchecker_TMP_1~1#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1332: havoc main_~node6____CPAchecker_TMP_1~1#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1003: havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L773: havoc main_~node4____CPAchecker_TMP_1~0#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: havoc main_~node3__m3~2#1; [2025-03-16 19:29:35,600 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L611: havoc main_~node5__m5~2#1; [2025-03-16 19:29:35,602 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L314: havoc main_~node5__m5~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1; [2025-03-16 19:29:35,602 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_~node4____CPAchecker_TMP_0~1#1; [2025-03-16 19:29:35,602 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L481: havoc main_~node6__m6~1#1;havoc main_~node5__m5~1#1;havoc main_~node4__m4~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;havoc main_~main____CPAchecker_TMP_0~0#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node6____CPAchecker_TMP_0~0#1; [2025-03-16 19:29:35,602 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L251: havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-03-16 19:29:35,602 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L945: havoc main_~node2____CPAchecker_TMP_1~0#1; [2025-03-16 19:29:35,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1508: havoc main_~node2____CPAchecker_TMP_1~1#1; [2025-03-16 19:29:35,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1376: havoc main_~node5____CPAchecker_TMP_1~1#1; [2025-03-16 19:29:35,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L917: havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-03-16 19:29:35,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L687: havoc main_~node5____CPAchecker_TMP_1~0#1; [2025-03-16 19:29:35,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L557: havoc main_~node2__m2~2#1; [2025-03-16 19:29:35,603 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L293: havoc main_~node4__m4~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1; [2025-03-16 19:29:35,604 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1119: havoc main_~node6____CPAchecker_TMP_1~0#1; [2025-03-16 19:29:35,604 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L659: havoc main_~node5____CPAchecker_TMP_0~1#1; [2025-03-16 19:29:35,604 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L593: havoc main_~node4__m4~2#1; [2025-03-16 19:29:35,604 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1420: havoc main_~node4____CPAchecker_TMP_1~1#1; [2025-03-16 19:29:35,605 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L859: havoc main_~node3____CPAchecker_TMP_1~0#1; [2025-03-16 19:29:35,605 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1091: havoc main_~node6____CPAchecker_TMP_0~1#1; [2025-03-16 19:29:35,649 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2025-03-16 19:29:35,649 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 19:29:35,665 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 19:29:35,665 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 19:29:35,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:29:35 BoogieIcfgContainer [2025-03-16 19:29:35,666 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 19:29:35,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 19:29:35,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 19:29:35,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 19:29:35,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 07:29:34" (1/3) ... [2025-03-16 19:29:35,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f236ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:29:35, skipping insertion in model container [2025-03-16 19:29:35,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 07:29:34" (2/3) ... [2025-03-16 19:29:35,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f236ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:29:35, skipping insertion in model container [2025-03-16 19:29:35,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 07:29:35" (3/3) ... [2025-03-16 19:29:35,674 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2025-03-16 19:29:35,684 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 19:29:35,690 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c that has 1 procedures, 249 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 19:29:35,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 19:29:35,749 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;@34d1d650, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 19:29:35,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 19:29:35,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 249 states, 247 states have (on average 1.728744939271255) internal successors, (427), 248 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-03-16 19:29:35,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:35,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:35,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:35,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:35,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1562342855, now seen corresponding path program 1 times [2025-03-16 19:29:35,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:35,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449507949] [2025-03-16 19:29:35,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:35,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:35,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-03-16 19:29:35,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-03-16 19:29:35,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:35,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:36,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:36,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449507949] [2025-03-16 19:29:36,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449507949] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:36,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:36,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:29:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913572507] [2025-03-16 19:29:36,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:36,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 19:29:36,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:36,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 19:29:36,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-16 19:29:36,436 INFO L87 Difference]: Start difference. First operand has 249 states, 247 states have (on average 1.728744939271255) internal successors, (427), 248 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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) [2025-03-16 19:29:36,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:36,711 INFO L93 Difference]: Finished difference Result 1119 states and 1816 transitions. [2025-03-16 19:29:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:29:36,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2025-03-16 19:29:36,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:36,722 INFO L225 Difference]: With dead ends: 1119 [2025-03-16 19:29:36,723 INFO L226 Difference]: Without dead ends: 983 [2025-03-16 19:29:36,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:29:36,727 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 3339 mSDsluCounter, 4150 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3339 SdHoareTripleChecker+Valid, 4584 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:36,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3339 Valid, 4584 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 19:29:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2025-03-16 19:29:36,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 381. [2025-03-16 19:29:36,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.5) internal successors, (570), 380 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 570 transitions. [2025-03-16 19:29:36,782 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 570 transitions. Word has length 95 [2025-03-16 19:29:36,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:36,785 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 570 transitions. [2025-03-16 19:29:36,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 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) [2025-03-16 19:29:36,785 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 570 transitions. [2025-03-16 19:29:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-16 19:29:36,787 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:36,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:36,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 19:29:36,788 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:36,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:36,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1187026433, now seen corresponding path program 1 times [2025-03-16 19:29:36,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:36,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460743777] [2025-03-16 19:29:36,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:36,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-16 19:29:36,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-16 19:29:36,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:36,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:37,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:37,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460743777] [2025-03-16 19:29:37,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460743777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:37,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:37,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:29:37,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608735593] [2025-03-16 19:29:37,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:37,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 19:29:37,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:37,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 19:29:37,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-16 19:29:37,181 INFO L87 Difference]: Start difference. First operand 381 states and 570 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:37,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:37,460 INFO L93 Difference]: Finished difference Result 1908 states and 2954 transitions. [2025-03-16 19:29:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:29:37,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2025-03-16 19:29:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:37,470 INFO L225 Difference]: With dead ends: 1908 [2025-03-16 19:29:37,471 INFO L226 Difference]: Without dead ends: 1622 [2025-03-16 19:29:37,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-16 19:29:37,474 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 2482 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:37,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 1471 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2025-03-16 19:29:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1612. [2025-03-16 19:29:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1611 states have (on average 1.5450031036623215) internal successors, (2489), 1611 states have internal predecessors, (2489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2489 transitions. [2025-03-16 19:29:37,539 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2489 transitions. Word has length 96 [2025-03-16 19:29:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:37,540 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2489 transitions. [2025-03-16 19:29:37,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2489 transitions. [2025-03-16 19:29:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-16 19:29:37,544 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:37,544 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:37,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 19:29:37,544 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:37,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 639028722, now seen corresponding path program 1 times [2025-03-16 19:29:37,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:37,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856242151] [2025-03-16 19:29:37,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:37,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:37,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-16 19:29:37,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-16 19:29:37,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:37,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:37,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856242151] [2025-03-16 19:29:37,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856242151] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:37,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:37,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:37,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165725605] [2025-03-16 19:29:37,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:37,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:37,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:37,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:37,699 INFO L87 Difference]: Start difference. First operand 1612 states and 2489 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:37,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:37,944 INFO L93 Difference]: Finished difference Result 4122 states and 6449 transitions. [2025-03-16 19:29:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:37,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-03-16 19:29:37,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:37,954 INFO L225 Difference]: With dead ends: 4122 [2025-03-16 19:29:37,954 INFO L226 Difference]: Without dead ends: 2704 [2025-03-16 19:29:37,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:29:37,959 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 1291 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:37,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 358 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2025-03-16 19:29:38,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2702. [2025-03-16 19:29:38,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2701 states have (on average 1.5546094039244724) internal successors, (4199), 2701 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:38,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 4199 transitions. [2025-03-16 19:29:38,022 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 4199 transitions. Word has length 97 [2025-03-16 19:29:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:38,023 INFO L471 AbstractCegarLoop]: Abstraction has 2702 states and 4199 transitions. [2025-03-16 19:29:38,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 4199 transitions. [2025-03-16 19:29:38,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-16 19:29:38,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:38,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:38,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 19:29:38,026 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:38,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:38,026 INFO L85 PathProgramCache]: Analyzing trace with hash 30749126, now seen corresponding path program 1 times [2025-03-16 19:29:38,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:38,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236302593] [2025-03-16 19:29:38,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:38,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-16 19:29:38,071 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-16 19:29:38,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:38,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:38,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236302593] [2025-03-16 19:29:38,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236302593] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:38,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:38,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955998169] [2025-03-16 19:29:38,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:38,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:38,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:38,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:38,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:38,178 INFO L87 Difference]: Start difference. First operand 2702 states and 4199 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:38,427 INFO L93 Difference]: Finished difference Result 7443 states and 11652 transitions. [2025-03-16 19:29:38,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:38,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-03-16 19:29:38,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:38,443 INFO L225 Difference]: With dead ends: 7443 [2025-03-16 19:29:38,443 INFO L226 Difference]: Without dead ends: 4894 [2025-03-16 19:29:38,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:29:38,450 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 1297 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:38,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 347 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2025-03-16 19:29:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4892. [2025-03-16 19:29:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4892 states, 4891 states have (on average 1.5577591494581886) internal successors, (7619), 4891 states have internal predecessors, (7619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:38,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4892 states to 4892 states and 7619 transitions. [2025-03-16 19:29:38,554 INFO L78 Accepts]: Start accepts. Automaton has 4892 states and 7619 transitions. Word has length 97 [2025-03-16 19:29:38,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:38,554 INFO L471 AbstractCegarLoop]: Abstraction has 4892 states and 7619 transitions. [2025-03-16 19:29:38,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4892 states and 7619 transitions. [2025-03-16 19:29:38,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-16 19:29:38,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:38,557 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:38,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 19:29:38,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1297451930, now seen corresponding path program 1 times [2025-03-16 19:29:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:38,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62843955] [2025-03-16 19:29:38,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:38,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:38,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-16 19:29:38,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-16 19:29:38,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:38,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:38,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:38,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62843955] [2025-03-16 19:29:38,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62843955] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:38,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:38,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:38,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771822269] [2025-03-16 19:29:38,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:38,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:38,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:38,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:38,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:38,684 INFO L87 Difference]: Start difference. First operand 4892 states and 7619 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:38,914 INFO L93 Difference]: Finished difference Result 14096 states and 22045 transitions. [2025-03-16 19:29:38,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:38,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-03-16 19:29:38,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:38,941 INFO L225 Difference]: With dead ends: 14096 [2025-03-16 19:29:38,943 INFO L226 Difference]: Without dead ends: 9320 [2025-03-16 19:29:38,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:29:38,954 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 1319 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:38,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 347 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9320 states. [2025-03-16 19:29:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9320 to 9318. [2025-03-16 19:29:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9318 states, 9317 states have (on average 1.556724267468069) internal successors, (14504), 9317 states have internal predecessors, (14504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:39,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9318 states to 9318 states and 14504 transitions. [2025-03-16 19:29:39,094 INFO L78 Accepts]: Start accepts. Automaton has 9318 states and 14504 transitions. Word has length 97 [2025-03-16 19:29:39,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:39,096 INFO L471 AbstractCegarLoop]: Abstraction has 9318 states and 14504 transitions. [2025-03-16 19:29:39,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 9318 states and 14504 transitions. [2025-03-16 19:29:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-16 19:29:39,100 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:39,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:39,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 19:29:39,100 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:39,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash -894641298, now seen corresponding path program 1 times [2025-03-16 19:29:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558490118] [2025-03-16 19:29:39,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:39,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-16 19:29:39,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-16 19:29:39,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:39,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:39,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:39,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558490118] [2025-03-16 19:29:39,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558490118] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:39,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:39,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:39,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947576963] [2025-03-16 19:29:39,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:39,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:39,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:39,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:39,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:39,206 INFO L87 Difference]: Start difference. First operand 9318 states and 14504 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:39,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:39,448 INFO L93 Difference]: Finished difference Result 27444 states and 42816 transitions. [2025-03-16 19:29:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-03-16 19:29:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:39,490 INFO L225 Difference]: With dead ends: 27444 [2025-03-16 19:29:39,490 INFO L226 Difference]: Without dead ends: 18212 [2025-03-16 19:29:39,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:29:39,508 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 1345 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:39,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 345 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18212 states. [2025-03-16 19:29:39,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18212 to 18210. [2025-03-16 19:29:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18210 states, 18209 states have (on average 1.5524191333955737) internal successors, (28268), 18209 states have internal predecessors, (28268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:39,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18210 states to 18210 states and 28268 transitions. [2025-03-16 19:29:39,783 INFO L78 Accepts]: Start accepts. Automaton has 18210 states and 28268 transitions. Word has length 97 [2025-03-16 19:29:39,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:39,783 INFO L471 AbstractCegarLoop]: Abstraction has 18210 states and 28268 transitions. [2025-03-16 19:29:39,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:39,784 INFO L276 IsEmpty]: Start isEmpty. Operand 18210 states and 28268 transitions. [2025-03-16 19:29:39,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-16 19:29:39,788 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:39,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:39,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 19:29:39,788 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:39,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:39,789 INFO L85 PathProgramCache]: Analyzing trace with hash 695214402, now seen corresponding path program 1 times [2025-03-16 19:29:39,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:39,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363460054] [2025-03-16 19:29:39,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:39,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:39,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-16 19:29:39,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-16 19:29:39,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:39,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:39,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:39,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:39,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363460054] [2025-03-16 19:29:39,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363460054] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:39,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:39,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:39,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435849332] [2025-03-16 19:29:39,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:39,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:39,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:39,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:39,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:39,909 INFO L87 Difference]: Start difference. First operand 18210 states and 28268 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:40,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:40,210 INFO L93 Difference]: Finished difference Result 54167 states and 84193 transitions. [2025-03-16 19:29:40,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:40,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2025-03-16 19:29:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:40,272 INFO L225 Difference]: With dead ends: 54167 [2025-03-16 19:29:40,273 INFO L226 Difference]: Without dead ends: 36020 [2025-03-16 19:29:40,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:29:40,297 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 1371 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:40,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 343 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36020 states. [2025-03-16 19:29:40,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36020 to 36018. [2025-03-16 19:29:40,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36018 states, 36017 states have (on average 1.545742288363828) internal successors, (55673), 36017 states have internal predecessors, (55673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36018 states to 36018 states and 55673 transitions. [2025-03-16 19:29:40,776 INFO L78 Accepts]: Start accepts. Automaton has 36018 states and 55673 transitions. Word has length 97 [2025-03-16 19:29:40,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:40,777 INFO L471 AbstractCegarLoop]: Abstraction has 36018 states and 55673 transitions. [2025-03-16 19:29:40,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 36018 states and 55673 transitions. [2025-03-16 19:29:40,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-16 19:29:40,783 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:40,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:40,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 19:29:40,784 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:40,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1473949320, now seen corresponding path program 1 times [2025-03-16 19:29:40,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:40,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660551514] [2025-03-16 19:29:40,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:40,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:40,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-16 19:29:40,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-16 19:29:40,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:40,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:40,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:40,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660551514] [2025-03-16 19:29:40,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660551514] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:40,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:40,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:40,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279358540] [2025-03-16 19:29:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:40,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:40,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:40,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:40,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:40,972 INFO L87 Difference]: Start difference. First operand 36018 states and 55673 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:41,467 INFO L93 Difference]: Finished difference Result 102358 states and 158349 transitions. [2025-03-16 19:29:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2025-03-16 19:29:41,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:41,572 INFO L225 Difference]: With dead ends: 102358 [2025-03-16 19:29:41,573 INFO L226 Difference]: Without dead ends: 66419 [2025-03-16 19:29:41,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-16 19:29:41,621 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 1404 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:41,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 346 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 19:29:41,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66419 states. [2025-03-16 19:29:42,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66419 to 66417. [2025-03-16 19:29:42,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66417 states, 66416 states have (on average 1.5414809684413395) internal successors, (102379), 66416 states have internal predecessors, (102379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66417 states to 66417 states and 102379 transitions. [2025-03-16 19:29:42,413 INFO L78 Accepts]: Start accepts. Automaton has 66417 states and 102379 transitions. Word has length 98 [2025-03-16 19:29:42,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:42,413 INFO L471 AbstractCegarLoop]: Abstraction has 66417 states and 102379 transitions. [2025-03-16 19:29:42,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:42,414 INFO L276 IsEmpty]: Start isEmpty. Operand 66417 states and 102379 transitions. [2025-03-16 19:29:42,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-16 19:29:42,424 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:42,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:42,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 19:29:42,424 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:42,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1191432611, now seen corresponding path program 1 times [2025-03-16 19:29:42,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:42,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708183874] [2025-03-16 19:29:42,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:42,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:42,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-16 19:29:42,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-16 19:29:42,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:42,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:42,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:42,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:42,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708183874] [2025-03-16 19:29:42,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708183874] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:42,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:42,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-16 19:29:42,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197768695] [2025-03-16 19:29:42,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:42,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 19:29:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:42,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 19:29:42,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 19:29:42,815 INFO L87 Difference]: Start difference. First operand 66417 states and 102379 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:43,054 INFO L93 Difference]: Finished difference Result 67827 states and 104492 transitions. [2025-03-16 19:29:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 19:29:43,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2025-03-16 19:29:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:43,134 INFO L225 Difference]: With dead ends: 67827 [2025-03-16 19:29:43,134 INFO L226 Difference]: Without dead ends: 67825 [2025-03-16 19:29:43,153 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 [2025-03-16 19:29:43,154 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 0 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:43,154 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1346 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:29:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67825 states. [2025-03-16 19:29:43,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67825 to 67825. [2025-03-16 19:29:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67825 states, 67824 states have (on average 1.5302400330266572) internal successors, (103787), 67824 states have internal predecessors, (103787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:43,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67825 states to 67825 states and 103787 transitions. [2025-03-16 19:29:43,928 INFO L78 Accepts]: Start accepts. Automaton has 67825 states and 103787 transitions. Word has length 98 [2025-03-16 19:29:43,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:43,928 INFO L471 AbstractCegarLoop]: Abstraction has 67825 states and 103787 transitions. [2025-03-16 19:29:43,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 67825 states and 103787 transitions. [2025-03-16 19:29:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-16 19:29:43,940 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:43,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:43,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-16 19:29:43,940 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:43,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:43,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1725069787, now seen corresponding path program 1 times [2025-03-16 19:29:43,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:43,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687019942] [2025-03-16 19:29:43,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:43,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:43,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-16 19:29:44,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-16 19:29:44,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:44,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:44,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:44,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687019942] [2025-03-16 19:29:44,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687019942] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:44,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:44,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 19:29:44,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439432668] [2025-03-16 19:29:44,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:44,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 19:29:44,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:44,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 19:29:44,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-16 19:29:44,279 INFO L87 Difference]: Start difference. First operand 67825 states and 103787 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:44,703 INFO L93 Difference]: Finished difference Result 192565 states and 293933 transitions. [2025-03-16 19:29:44,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 19:29:44,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2025-03-16 19:29:44,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:44,910 INFO L225 Difference]: With dead ends: 192565 [2025-03-16 19:29:44,911 INFO L226 Difference]: Without dead ends: 126515 [2025-03-16 19:29:44,982 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 [2025-03-16 19:29:44,982 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 278 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:44,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 727 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:29:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126515 states. [2025-03-16 19:29:46,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126515 to 126513. [2025-03-16 19:29:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126513 states, 126512 states have (on average 1.5184883647401037) internal successors, (192107), 126512 states have internal predecessors, (192107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:47,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126513 states to 126513 states and 192107 transitions. [2025-03-16 19:29:47,147 INFO L78 Accepts]: Start accepts. Automaton has 126513 states and 192107 transitions. Word has length 99 [2025-03-16 19:29:47,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:47,148 INFO L471 AbstractCegarLoop]: Abstraction has 126513 states and 192107 transitions. [2025-03-16 19:29:47,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 126513 states and 192107 transitions. [2025-03-16 19:29:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-16 19:29:47,157 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:47,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:47,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-16 19:29:47,158 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:47,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1208003676, now seen corresponding path program 1 times [2025-03-16 19:29:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:47,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725145414] [2025-03-16 19:29:47,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:47,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:47,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-16 19:29:47,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-16 19:29:47,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:47,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:47,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725145414] [2025-03-16 19:29:47,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725145414] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:47,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:47,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:29:47,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853474341] [2025-03-16 19:29:47,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:47,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:29:47,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:47,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:29:47,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:29:47,236 INFO L87 Difference]: Start difference. First operand 126513 states and 192107 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:48,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:48,051 INFO L93 Difference]: Finished difference Result 294991 states and 448047 transitions. [2025-03-16 19:29:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:29:48,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-03-16 19:29:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:48,569 INFO L225 Difference]: With dead ends: 294991 [2025-03-16 19:29:48,569 INFO L226 Difference]: Without dead ends: 179567 [2025-03-16 19:29:48,633 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 [2025-03-16 19:29:48,634 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 247 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:48,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 671 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:29:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179567 states. [2025-03-16 19:29:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179567 to 125870. [2025-03-16 19:29:50,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125870 states, 125869 states have (on average 1.5083698130596095) internal successors, (189857), 125869 states have internal predecessors, (189857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125870 states to 125870 states and 189857 transitions. [2025-03-16 19:29:50,425 INFO L78 Accepts]: Start accepts. Automaton has 125870 states and 189857 transitions. Word has length 100 [2025-03-16 19:29:50,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:50,425 INFO L471 AbstractCegarLoop]: Abstraction has 125870 states and 189857 transitions. [2025-03-16 19:29:50,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:50,425 INFO L276 IsEmpty]: Start isEmpty. Operand 125870 states and 189857 transitions. [2025-03-16 19:29:50,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-16 19:29:50,433 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:50,433 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:50,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 19:29:50,434 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:50,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:50,434 INFO L85 PathProgramCache]: Analyzing trace with hash -280304411, now seen corresponding path program 1 times [2025-03-16 19:29:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:50,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993220552] [2025-03-16 19:29:50,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:50,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-16 19:29:50,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-16 19:29:50,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:50,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:50,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:50,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993220552] [2025-03-16 19:29:50,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993220552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:50,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:50,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:29:50,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920416415] [2025-03-16 19:29:50,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:50,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:29:50,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:50,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:29:50,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:29:50,489 INFO L87 Difference]: Start difference. First operand 125870 states and 189857 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:51,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:51,317 INFO L93 Difference]: Finished difference Result 278549 states and 419580 transitions. [2025-03-16 19:29:51,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:29:51,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-03-16 19:29:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:51,585 INFO L225 Difference]: With dead ends: 278549 [2025-03-16 19:29:51,585 INFO L226 Difference]: Without dead ends: 163861 [2025-03-16 19:29:51,697 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 [2025-03-16 19:29:51,698 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 239 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:51,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 656 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 19:29:51,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163861 states. [2025-03-16 19:29:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163861 to 163026. [2025-03-16 19:29:53,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163026 states, 163025 states have (on average 1.490703879773041) internal successors, (243022), 163025 states have internal predecessors, (243022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163026 states to 163026 states and 243022 transitions. [2025-03-16 19:29:54,152 INFO L78 Accepts]: Start accepts. Automaton has 163026 states and 243022 transitions. Word has length 100 [2025-03-16 19:29:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:54,153 INFO L471 AbstractCegarLoop]: Abstraction has 163026 states and 243022 transitions. [2025-03-16 19:29:54,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:54,155 INFO L276 IsEmpty]: Start isEmpty. Operand 163026 states and 243022 transitions. [2025-03-16 19:29:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-16 19:29:54,165 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:54,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:54,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 19:29:54,165 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:54,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash 953533252, now seen corresponding path program 1 times [2025-03-16 19:29:54,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:54,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872507372] [2025-03-16 19:29:54,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:54,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:54,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-16 19:29:54,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-16 19:29:54,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:54,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:54,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:54,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:54,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872507372] [2025-03-16 19:29:54,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872507372] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:54,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:54,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:29:54,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394614429] [2025-03-16 19:29:54,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:54,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:29:54,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:54,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:29:54,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:29:54,215 INFO L87 Difference]: Start difference. First operand 163026 states and 243022 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:55,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:29:55,316 INFO L93 Difference]: Finished difference Result 341611 states and 508380 transitions. [2025-03-16 19:29:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:29:55,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-03-16 19:29:55,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:29:55,658 INFO L225 Difference]: With dead ends: 341611 [2025-03-16 19:29:55,659 INFO L226 Difference]: Without dead ends: 208593 [2025-03-16 19:29:55,732 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 [2025-03-16 19:29:55,733 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 227 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:29:55,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 654 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:29:55,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208593 states. [2025-03-16 19:29:57,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208593 to 207308. [2025-03-16 19:29:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207308 states, 207307 states have (on average 1.4708475835355295) internal successors, (304917), 207307 states have internal predecessors, (304917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:58,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207308 states to 207308 states and 304917 transitions. [2025-03-16 19:29:58,869 INFO L78 Accepts]: Start accepts. Automaton has 207308 states and 304917 transitions. Word has length 100 [2025-03-16 19:29:58,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:29:58,869 INFO L471 AbstractCegarLoop]: Abstraction has 207308 states and 304917 transitions. [2025-03-16 19:29:58,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:29:58,869 INFO L276 IsEmpty]: Start isEmpty. Operand 207308 states and 304917 transitions. [2025-03-16 19:29:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-16 19:29:58,884 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:29:58,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:29:58,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 19:29:58,884 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:29:58,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:29:58,885 INFO L85 PathProgramCache]: Analyzing trace with hash -277636795, now seen corresponding path program 1 times [2025-03-16 19:29:58,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:29:58,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036101176] [2025-03-16 19:29:58,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:29:58,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:29:58,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-16 19:29:58,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-16 19:29:58,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:29:58,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:29:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:29:58,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:29:58,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036101176] [2025-03-16 19:29:58,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036101176] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:29:58,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:29:58,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 19:29:58,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798014109] [2025-03-16 19:29:58,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:29:58,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 19:29:58,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:29:58,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 19:29:58,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 19:29:58,953 INFO L87 Difference]: Start difference. First operand 207308 states and 304917 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:30:00,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:30:00,324 INFO L93 Difference]: Finished difference Result 397355 states and 583330 transitions. [2025-03-16 19:30:00,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 19:30:00,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-03-16 19:30:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:30:00,798 INFO L225 Difference]: With dead ends: 397355 [2025-03-16 19:30:00,798 INFO L226 Difference]: Without dead ends: 252981 [2025-03-16 19:30:00,862 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 [2025-03-16 19:30:00,863 INFO L435 NwaCegarLoop]: 336 mSDtfsCounter, 215 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 19:30:00,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 652 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 19:30:01,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252981 states. [2025-03-16 19:30:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252981 to 251209. [2025-03-16 19:30:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251209 states, 251208 states have (on average 1.448867074296997) internal successors, (363967), 251208 states have internal predecessors, (363967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:30:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251209 states to 251209 states and 363967 transitions. [2025-03-16 19:30:04,461 INFO L78 Accepts]: Start accepts. Automaton has 251209 states and 363967 transitions. Word has length 100 [2025-03-16 19:30:04,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 19:30:04,461 INFO L471 AbstractCegarLoop]: Abstraction has 251209 states and 363967 transitions. [2025-03-16 19:30:04,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:30:04,461 INFO L276 IsEmpty]: Start isEmpty. Operand 251209 states and 363967 transitions. [2025-03-16 19:30:04,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-16 19:30:04,479 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 19:30:04,480 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 19:30:04,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 19:30:04,480 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 19:30:04,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 19:30:04,480 INFO L85 PathProgramCache]: Analyzing trace with hash -725730818, now seen corresponding path program 1 times [2025-03-16 19:30:04,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 19:30:04,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282670664] [2025-03-16 19:30:04,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 19:30:04,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 19:30:04,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-16 19:30:04,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-16 19:30:04,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 19:30:04,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 19:30:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 19:30:04,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 19:30:04,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282670664] [2025-03-16 19:30:04,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282670664] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 19:30:04,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 19:30:04,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 19:30:04,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444826904] [2025-03-16 19:30:04,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 19:30:04,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 19:30:04,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 19:30:04,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 19:30:04,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-16 19:30:04,622 INFO L87 Difference]: Start difference. First operand 251209 states and 363967 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 19:30:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 19:30:06,571 INFO L93 Difference]: Finished difference Result 690161 states and 1004612 transitions. [2025-03-16 19:30:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 19:30:06,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2025-03-16 19:30:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 19:30:07,743 INFO L225 Difference]: With dead ends: 690161 [2025-03-16 19:30:07,744 INFO L226 Difference]: Without dead ends: 654087 [2025-03-16 19:30:08,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2025-03-16 19:30:08,500 INFO L435 NwaCegarLoop]: 496 mSDtfsCounter, 3363 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3363 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 19:30:08,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3363 Valid, 1994 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 19:30:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654087 states. [2025-03-16 19:30:13,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654087 to 286849. [2025-03-16 19:30:13,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286849 states, 286848 states have (on average 1.447690065818831) internal successors, (415267), 286848 states have internal predecessors, (415267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)