./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-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 b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 06:16:23,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 06:16:23,890 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 06:16:23,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 06:16:23,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 06:16:23,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 06:16:23,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 06:16:23,909 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 06:16:23,909 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 06:16:23,909 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 06:16:23,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 06:16:23,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 06:16:23,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 06:16:23,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 06:16:23,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 06:16:23,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 06:16:23,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:16:23,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 06:16:23,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 06:16:23,912 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 -> b13c8169fb5357220d29959d63393b66877a012797fdaa495805bf5299de8fb1 [2025-03-08 06:16:24,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 06:16:24,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 06:16:24,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 06:16:24,135 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 06:16:24,136 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 06:16:24,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2025-03-08 06:16:25,274 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a9a5f3b/2854db775aea4c209579303919313f17/FLAG28e068683 [2025-03-08 06:16:25,535 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 06:16:25,536 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2025-03-08 06:16:25,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a9a5f3b/2854db775aea4c209579303919313f17/FLAG28e068683 [2025-03-08 06:16:25,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a9a5f3b/2854db775aea4c209579303919313f17 [2025-03-08 06:16:25,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 06:16:25,838 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 06:16:25,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 06:16:25,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 06:16:25,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 06:16:25,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:25" (1/1) ... [2025-03-08 06:16:25,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6edcc854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:25, skipping insertion in model container [2025-03-08 06:16:25,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 06:16:25" (1/1) ... [2025-03-08 06:16:25,886 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 06:16:26,062 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2025-03-08 06:16:26,088 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2025-03-08 06:16:26,094 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2025-03-08 06:16:26,097 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2025-03-08 06:16:26,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:16:26,198 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 06:16:26,233 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8622,8635] [2025-03-08 06:16:26,248 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15089,15102] [2025-03-08 06:16:26,251 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17286,17299] [2025-03-08 06:16:26,253 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.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18310,18323] [2025-03-08 06:16:26,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 06:16:26,334 INFO L204 MainTranslator]: Completed translation [2025-03-08 06:16:26,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26 WrapperNode [2025-03-08 06:16:26,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 06:16:26,335 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 06:16:26,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 06:16:26,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 06:16:26,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,358 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,442 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2803 [2025-03-08 06:16:26,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 06:16:26,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 06:16:26,444 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 06:16:26,444 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 06:16:26,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,457 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,488 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]. [2025-03-08 06:16:26,488 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,510 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,513 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 06:16:26,525 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 06:16:26,526 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 06:16:26,526 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 06:16:26,526 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (1/1) ... [2025-03-08 06:16:26,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 06:16:26,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:16:26,557 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) [2025-03-08 06:16:26,574 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 [2025-03-08 06:16:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 06:16:26,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 06:16:26,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 06:16:26,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 06:16:26,727 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 06:16:26,728 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2348: havoc main_~node3____CPAchecker_TMP_0~5#1; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L300: havoc main_~node2__m2~1#1; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2282: havoc main_~main____CPAchecker_TMP_0~20#1;havoc main_~__tmp_24~0#1, main_~assert__arg~23#1;havoc main_~check__tmp~24#1; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4198: havoc main_~main____CPAchecker_TMP_0~50#1;havoc main_~__tmp_54~0#1, main_~assert__arg~53#1;havoc main_~check__tmp~54#1; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L367: 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; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1160: havoc main_~__tmp_8~0#1, main_~assert__arg~7#1;havoc main_~check__tmp~7#1; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3342: havoc main_~node2____CPAchecker_TMP_0~3#1; [2025-03-08 06:16:27,899 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2880: havoc main_~main____CPAchecker_TMP_0~29#1;havoc main_~__tmp_33~0#1, main_~assert__arg~32#1;havoc main_~check__tmp~33#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2683: havoc main_~main____CPAchecker_TMP_0~26#1;havoc main_~__tmp_30~0#1, main_~assert__arg~29#1;havoc main_~check__tmp~30#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3608: havoc main_~node3____CPAchecker_TMP_0~10#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4005: havoc main_~main____CPAchecker_TMP_0~47#1;havoc main_~__tmp_51~0#1, main_~assert__arg~50#1;havoc main_~check__tmp~51#1;havoc main_~node3____CPAchecker_TMP_1~11#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2552: havoc main_~main____CPAchecker_TMP_0~24#1;havoc main_~__tmp_28~0#1, main_~assert__arg~27#1;havoc main_~check__tmp~28#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L240: havoc main_~node3____CPAchecker_TMP_0~0#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L901: havoc main_~node3__m3~3#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1827: havoc main_~node3____CPAchecker_TMP_0~3#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L770: havoc main_~node1____CPAchecker_TMP_0~2#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2224: havoc main_~main____CPAchecker_TMP_0~19#1;havoc main_~__tmp_23~0#1, main_~assert__arg~22#1;havoc main_~check__tmp~23#1;havoc main_~node3____CPAchecker_TMP_1~4#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3812: havoc main_~main____CPAchecker_TMP_0~44#1;havoc main_~__tmp_48~0#1, main_~assert__arg~47#1;havoc main_~check__tmp~48#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1566: havoc main_~node3__m3~6#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L510: havoc main_~node1____CPAchecker_TMP_0~1#1;havoc main_~node1__m1~3#1;havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2025-03-08 06:16:27,900 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3351: havoc main_~node3__m3~13#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4144: havoc main_~main____CPAchecker_TMP_0~49#1;havoc main_~__tmp_53~0#1, main_~assert__arg~52#1;havoc main_~check__tmp~53#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3087: havoc main_~node3__m3~12#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2031: havoc main_~main____CPAchecker_TMP_0~16#1;havoc main_~__tmp_20~0#1, main_~assert__arg~19#1;havoc main_~check__tmp~20#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3947: havoc main_~main____CPAchecker_TMP_0~46#1;havoc main_~__tmp_50~0#1, main_~assert__arg~49#1;havoc main_~check__tmp~50#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2494: havoc main_~main____CPAchecker_TMP_0~23#1;havoc main_~__tmp_27~0#1, main_~assert__arg~26#1;havoc main_~check__tmp~27#1;havoc main_~node3____CPAchecker_TMP_1~5#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L712: havoc main_~node2____CPAchecker_TMP_1~0#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2166: havoc main_~main____CPAchecker_TMP_0~18#1;havoc main_~__tmp_22~0#1, main_~assert__arg~21#1;havoc main_~check__tmp~22#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2629: havoc main_~main____CPAchecker_TMP_0~25#1;havoc main_~__tmp_29~0#1, main_~assert__arg~28#1;havoc main_~check__tmp~29#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L317: havoc main_~node3__m3~1#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1243: havoc main_~__tmp_9~0#1, main_~assert__arg~8#1;havoc main_~check__tmp~8#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3754: havoc main_~main____CPAchecker_TMP_0~43#1;havoc main_~__tmp_47~0#1, main_~assert__arg~46#1;havoc main_~check__tmp~47#1;havoc main_~node3____CPAchecker_TMP_1~10#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1576: havoc main_~node3____CPAchecker_TMP_0~2#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1973: havoc main_~main____CPAchecker_TMP_0~15#1;havoc main_~__tmp_19~0#1, main_~assert__arg~18#1;havoc main_~check__tmp~19#1;havoc main_~node3____CPAchecker_TMP_1~3#1; [2025-03-08 06:16:27,901 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2436: havoc main_~main____CPAchecker_TMP_0~22#1;havoc main_~__tmp_26~0#1, main_~assert__arg~25#1;havoc main_~check__tmp~26#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3361: havoc main_~node3____CPAchecker_TMP_0~9#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3097: havoc main_~node3____CPAchecker_TMP_0~8#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L851: havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L389: havoc main_~node2__m2~2#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L192: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L985: havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~5#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1118: havoc main_~main____CPAchecker_TMP_0~5#1;havoc main_~__tmp_7~0#1, main_~assert__arg~6#1;havoc main_~check__tmp~6#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2836: havoc main_~node3__m3~11#1;havoc main_~node2____CPAchecker_TMP_1~2#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3893: havoc main_~main____CPAchecker_TMP_0~45#1;havoc main_~__tmp_49~0#1, main_~assert__arg~48#1;havoc main_~check__tmp~49#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1780: havoc main_~main____CPAchecker_TMP_0~12#1;havoc main_~__tmp_16~0#1, main_~assert__arg~15#1;havoc main_~check__tmp~16#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3696: havoc main_~main____CPAchecker_TMP_0~42#1;havoc main_~__tmp_46~0#1, main_~assert__arg~45#1;havoc main_~check__tmp~46#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3565: havoc main_~main____CPAchecker_TMP_0~40#1;havoc main_~__tmp_44~0#1, main_~assert__arg~43#1;havoc main_~check__tmp~44#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3301: havoc main_~main____CPAchecker_TMP_0~36#1;havoc main_~__tmp_40~0#1, main_~assert__arg~39#1;havoc main_~check__tmp~40#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2112: havoc main_~main____CPAchecker_TMP_0~17#1;havoc main_~__tmp_21~0#1, main_~assert__arg~20#1;havoc main_~check__tmp~21#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1915: havoc main_~main____CPAchecker_TMP_0~14#1;havoc main_~__tmp_18~0#1, main_~assert__arg~17#1;havoc main_~check__tmp~18#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1059: havoc main_~node2__m2~3#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L598: havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2382: havoc main_~main____CPAchecker_TMP_0~21#1;havoc main_~__tmp_25~0#1, main_~assert__arg~24#1;havoc main_~check__tmp~25#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L202: havoc main_~node1____CPAchecker_TMP_0~0#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4100: havoc main_~node3__m3~16#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1722: havoc main_~main____CPAchecker_TMP_0~11#1;havoc main_~__tmp_15~0#1, main_~assert__arg~14#1;havoc main_~check__tmp~15#1;havoc main_~node3____CPAchecker_TMP_1~2#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2846: havoc main_~node3____CPAchecker_TMP_0~7#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3507: havoc main_~main____CPAchecker_TMP_0~39#1;havoc main_~__tmp_43~0#1, main_~assert__arg~42#1;havoc main_~check__tmp~43#1;havoc main_~node3____CPAchecker_TMP_1~9#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3243: havoc main_~main____CPAchecker_TMP_0~35#1;havoc main_~__tmp_39~0#1, main_~assert__arg~38#1;havoc main_~check__tmp~39#1;havoc main_~node3____CPAchecker_TMP_1~8#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2319: havoc main_~node2__m2~4#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3642: havoc main_~main____CPAchecker_TMP_0~41#1;havoc main_~__tmp_45~0#1, main_~assert__arg~44#1;havoc main_~check__tmp~45#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2585: havoc main_~node3__m3~10#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L407: havoc main_~node3__m3~2#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3050: havoc main_~main____CPAchecker_TMP_0~32#1;havoc main_~__tmp_36~0#1, main_~assert__arg~35#1;havoc main_~check__tmp~36#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1861: havoc main_~main____CPAchecker_TMP_0~13#1;havoc main_~__tmp_17~0#1, main_~assert__arg~16#1;havoc main_~check__tmp~17#1; [2025-03-08 06:16:27,902 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1664: havoc main_~main____CPAchecker_TMP_0~10#1;havoc main_~__tmp_14~0#1, main_~assert__arg~13#1;havoc main_~check__tmp~14#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L211: havoc main_~node2__m2~0#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1533: havoc main_~main____CPAchecker_TMP_0~8#1;havoc main_~__tmp_12~0#1, main_~assert__arg~11#1;havoc main_~check__tmp~12#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3449: havoc main_~main____CPAchecker_TMP_0~38#1;havoc main_~__tmp_42~0#1, main_~assert__arg~41#1;havoc main_~check__tmp~42#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3185: havoc main_~main____CPAchecker_TMP_0~34#1;havoc main_~__tmp_38~0#1, main_~assert__arg~37#1;havoc main_~check__tmp~38#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4110: havoc main_~node3____CPAchecker_TMP_0~12#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2329: havoc main_~node2____CPAchecker_TMP_0~2#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3849: havoc main_~node3__m3~15#1;havoc main_~node2____CPAchecker_TMP_1~3#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L282: 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; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1273: havoc main_~check__tmp~9#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L943: havoc main_~main____CPAchecker_TMP_0~4#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2025-03-08 06:16:27,903 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2595: havoc main_~node3____CPAchecker_TMP_0~6#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1076: havoc main_~node3__m3~4#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2992: havoc main_~main____CPAchecker_TMP_0~31#1;havoc main_~__tmp_35~0#1, main_~assert__arg~34#1;havoc main_~check__tmp~35#1;havoc main_~node3____CPAchecker_TMP_1~7#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4314: havoc main_~main____CPAchecker_TMP_0~52#1;havoc main_~__tmp_56~0#1, main_~assert__arg~55#1;havoc main_~check__tmp~56#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1209: havoc main_~node3__m3~5#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2068: havoc main_~node3__m3~8#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1475: havoc main_~main____CPAchecker_TMP_0~7#1;havoc main_~__tmp_11~0#1, main_~assert__arg~10#1;havoc main_~check__tmp~11#1;havoc main_~node3____CPAchecker_TMP_1~1#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: havoc main_~node2____CPAchecker_TMP_0~0#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L684: havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2799: havoc main_~main____CPAchecker_TMP_0~28#1;havoc main_~__tmp_32~0#1, main_~assert__arg~31#1;havoc main_~check__tmp~32#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1610: havoc main_~main____CPAchecker_TMP_0~9#1;havoc main_~__tmp_13~0#1, main_~assert__arg~12#1;havoc main_~check__tmp~13#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2338: havoc main_~node3__m3~9#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3395: havoc main_~main____CPAchecker_TMP_0~37#1;havoc main_~__tmp_41~0#1, main_~assert__arg~40#1;havoc main_~check__tmp~41#1; [2025-03-08 06:16:27,904 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3131: havoc main_~main____CPAchecker_TMP_0~33#1;havoc main_~__tmp_37~0#1, main_~assert__arg~36#1;havoc main_~check__tmp~37#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2934: havoc main_~main____CPAchecker_TMP_0~30#1;havoc main_~__tmp_34~0#1, main_~assert__arg~33#1;havoc main_~check__tmp~34#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3859: havoc main_~node3____CPAchecker_TMP_0~11#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4256: havoc main_~main____CPAchecker_TMP_0~51#1;havoc main_~__tmp_55~0#1, main_~assert__arg~54#1;havoc main_~check__tmp~55#1;havoc main_~node3____CPAchecker_TMP_1~12#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3332: havoc main_~node2__m2~5#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1417: havoc main_~main____CPAchecker_TMP_0~6#1;havoc main_~__tmp_10~0#1, main_~assert__arg~9#1;havoc main_~check__tmp~10#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2078: havoc main_~node3____CPAchecker_TMP_0~4#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3598: havoc main_~node3__m3~14#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L626: havoc main_~node3____CPAchecker_TMP_1~0#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L230: havoc main_~node3__m3~0#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2741: havoc main_~main____CPAchecker_TMP_0~27#1;havoc main_~__tmp_31~0#1, main_~assert__arg~30#1;havoc main_~check__tmp~31#1;havoc main_~node3____CPAchecker_TMP_1~6#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4063: havoc main_~main____CPAchecker_TMP_0~48#1;havoc main_~__tmp_52~0#1, main_~assert__arg~51#1;havoc main_~check__tmp~52#1; [2025-03-08 06:16:27,905 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1817: havoc main_~node3__m3~7#1;havoc main_~node2____CPAchecker_TMP_1~1#1; [2025-03-08 06:16:27,975 INFO L? ?]: Removed 482 outVars from TransFormulas that were not future-live. [2025-03-08 06:16:27,975 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 06:16:27,987 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 06:16:27,988 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 06:16:27,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:27 BoogieIcfgContainer [2025-03-08 06:16:27,988 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 06:16:27,990 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 06:16:27,990 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 06:16:27,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 06:16:27,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 06:16:25" (1/3) ... [2025-03-08 06:16:27,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcaa05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:27, skipping insertion in model container [2025-03-08 06:16:27,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 06:16:26" (2/3) ... [2025-03-08 06:16:27,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcaa05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 06:16:27, skipping insertion in model container [2025-03-08 06:16:27,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 06:16:27" (3/3) ... [2025-03-08 06:16:27,995 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2025-03-08 06:16:28,005 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 06:16:28,008 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.3.2.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c that has 1 procedures, 442 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-08 06:16:28,051 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 06:16:28,059 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;@328a34e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 06:16:28,059 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 06:16:28,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-08 06:16:28,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:28,075 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] [2025-03-08 06:16:28,076 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:28,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:28,083 INFO L85 PathProgramCache]: Analyzing trace with hash -360259868, now seen corresponding path program 1 times [2025-03-08 06:16:28,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:28,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863279970] [2025-03-08 06:16:28,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:28,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:28,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-08 06:16:28,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-08 06:16:28,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:28,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:28,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:28,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863279970] [2025-03-08 06:16:28,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863279970] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:28,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:28,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:28,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749242851] [2025-03-08 06:16:28,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:28,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:28,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:28,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:28,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:28,475 INFO L87 Difference]: Start difference. First operand has 442 states, 437 states have (on average 1.8581235697940504) internal successors, (812), 441 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:28,580 INFO L93 Difference]: Finished difference Result 678 states and 1193 transitions. [2025-03-08 06:16:28,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:28,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2025-03-08 06:16:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:28,595 INFO L225 Difference]: With dead ends: 678 [2025-03-08 06:16:28,595 INFO L226 Difference]: Without dead ends: 554 [2025-03-08 06:16:28,597 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 [2025-03-08 06:16:28,599 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 405 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:28,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1363 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:16:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2025-03-08 06:16:28,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 547. [2025-03-08 06:16:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 543 states have (on average 1.3333333333333333) internal successors, (724), 546 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 724 transitions. [2025-03-08 06:16:28,645 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 724 transitions. Word has length 50 [2025-03-08 06:16:28,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:28,645 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 724 transitions. [2025-03-08 06:16:28,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,645 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 724 transitions. [2025-03-08 06:16:28,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-08 06:16:28,647 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:28,647 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] [2025-03-08 06:16:28,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 06:16:28,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:28,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:28,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1000677084, now seen corresponding path program 1 times [2025-03-08 06:16:28,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:28,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675379398] [2025-03-08 06:16:28,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:28,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:28,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-08 06:16:28,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-08 06:16:28,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:28,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:28,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:28,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675379398] [2025-03-08 06:16:28,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675379398] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:28,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:28,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622991797] [2025-03-08 06:16:28,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:28,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:28,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:28,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:28,784 INFO L87 Difference]: Start difference. First operand 547 states and 724 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:28,823 INFO L93 Difference]: Finished difference Result 973 states and 1340 transitions. [2025-03-08 06:16:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2025-03-08 06:16:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:28,826 INFO L225 Difference]: With dead ends: 973 [2025-03-08 06:16:28,826 INFO L226 Difference]: Without dead ends: 725 [2025-03-08 06:16:28,827 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 [2025-03-08 06:16:28,828 INFO L435 NwaCegarLoop]: 574 mSDtfsCounter, 236 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:28,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1018 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:28,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2025-03-08 06:16:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 719. [2025-03-08 06:16:28,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 715 states have (on average 1.3524475524475525) internal successors, (967), 718 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 967 transitions. [2025-03-08 06:16:28,873 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 967 transitions. Word has length 50 [2025-03-08 06:16:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:28,873 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 967 transitions. [2025-03-08 06:16:28,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 967 transitions. [2025-03-08 06:16:28,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-08 06:16:28,875 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:28,875 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] [2025-03-08 06:16:28,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 06:16:28,875 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:28,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1804683398, now seen corresponding path program 1 times [2025-03-08 06:16:28,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:28,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243161225] [2025-03-08 06:16:28,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:28,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:28,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-08 06:16:28,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-08 06:16:28,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:28,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:29,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:29,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243161225] [2025-03-08 06:16:29,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243161225] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:29,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:29,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:16:29,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534704037] [2025-03-08 06:16:29,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:29,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:29,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:29,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:29,058 INFO L87 Difference]: Start difference. First operand 719 states and 967 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:29,374 INFO L93 Difference]: Finished difference Result 1344 states and 1836 transitions. [2025-03-08 06:16:29,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:29,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2025-03-08 06:16:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:29,377 INFO L225 Difference]: With dead ends: 1344 [2025-03-08 06:16:29,377 INFO L226 Difference]: Without dead ends: 830 [2025-03-08 06:16:29,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:29,379 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 1689 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:29,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 392 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:29,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2025-03-08 06:16:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 821. [2025-03-08 06:16:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 817 states have (on average 1.3476132190942471) internal successors, (1101), 820 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1101 transitions. [2025-03-08 06:16:29,394 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1101 transitions. Word has length 50 [2025-03-08 06:16:29,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:29,394 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1101 transitions. [2025-03-08 06:16:29,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1101 transitions. [2025-03-08 06:16:29,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-08 06:16:29,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:29,397 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] [2025-03-08 06:16:29,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 06:16:29,398 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:29,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:29,399 INFO L85 PathProgramCache]: Analyzing trace with hash -2032337950, now seen corresponding path program 1 times [2025-03-08 06:16:29,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:29,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008594872] [2025-03-08 06:16:29,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:29,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:29,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 06:16:29,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 06:16:29,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:29,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:29,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:29,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008594872] [2025-03-08 06:16:29,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008594872] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:29,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:29,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:29,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804848996] [2025-03-08 06:16:29,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:29,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:29,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:29,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:29,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:29,471 INFO L87 Difference]: Start difference. First operand 821 states and 1101 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:29,503 INFO L93 Difference]: Finished difference Result 1764 states and 2439 transitions. [2025-03-08 06:16:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:29,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2025-03-08 06:16:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:29,507 INFO L225 Difference]: With dead ends: 1764 [2025-03-08 06:16:29,507 INFO L226 Difference]: Without dead ends: 1244 [2025-03-08 06:16:29,508 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 [2025-03-08 06:16:29,508 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 272 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:29,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 961 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:29,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2025-03-08 06:16:29,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1238. [2025-03-08 06:16:29,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 1234 states have (on average 1.358995137763371) internal successors, (1677), 1237 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1677 transitions. [2025-03-08 06:16:29,556 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1677 transitions. Word has length 51 [2025-03-08 06:16:29,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:29,556 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1677 transitions. [2025-03-08 06:16:29,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1677 transitions. [2025-03-08 06:16:29,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-08 06:16:29,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:29,557 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] [2025-03-08 06:16:29,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 06:16:29,558 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:29,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:29,558 INFO L85 PathProgramCache]: Analyzing trace with hash 393602433, now seen corresponding path program 1 times [2025-03-08 06:16:29,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:29,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435768260] [2025-03-08 06:16:29,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:29,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:29,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 06:16:29,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 06:16:29,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:29,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:29,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:29,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435768260] [2025-03-08 06:16:29,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435768260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:29,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:29,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:16:29,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256507991] [2025-03-08 06:16:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:29,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:29,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:29,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:29,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:29,671 INFO L87 Difference]: Start difference. First operand 1238 states and 1677 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:29,884 INFO L93 Difference]: Finished difference Result 2595 states and 3573 transitions. [2025-03-08 06:16:29,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:29,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2025-03-08 06:16:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:29,889 INFO L225 Difference]: With dead ends: 2595 [2025-03-08 06:16:29,889 INFO L226 Difference]: Without dead ends: 1554 [2025-03-08 06:16:29,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:29,891 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 1478 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:29,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 350 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:16:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2025-03-08 06:16:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1162. [2025-03-08 06:16:29,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1158 states have (on average 1.3609671848013818) internal successors, (1576), 1161 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1576 transitions. [2025-03-08 06:16:29,916 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1576 transitions. Word has length 51 [2025-03-08 06:16:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:29,916 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1576 transitions. [2025-03-08 06:16:29,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:29,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1576 transitions. [2025-03-08 06:16:29,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-08 06:16:29,917 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:29,918 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] [2025-03-08 06:16:29,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 06:16:29,918 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:29,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:29,918 INFO L85 PathProgramCache]: Analyzing trace with hash -428445644, now seen corresponding path program 1 times [2025-03-08 06:16:29,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:29,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370408469] [2025-03-08 06:16:29,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:29,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:29,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-08 06:16:29,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-08 06:16:29,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:29,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:30,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:30,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370408469] [2025-03-08 06:16:30,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370408469] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:30,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:30,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 06:16:30,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546486474] [2025-03-08 06:16:30,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:30,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:30,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:30,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:30,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:30,029 INFO L87 Difference]: Start difference. First operand 1162 states and 1576 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:30,221 INFO L93 Difference]: Finished difference Result 2588 states and 3548 transitions. [2025-03-08 06:16:30,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:30,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2025-03-08 06:16:30,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:30,226 INFO L225 Difference]: With dead ends: 2588 [2025-03-08 06:16:30,226 INFO L226 Difference]: Without dead ends: 1533 [2025-03-08 06:16:30,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:30,228 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 1334 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:30,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 331 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:16:30,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2025-03-08 06:16:30,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1521. [2025-03-08 06:16:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1517 states have (on average 1.3645352669742914) internal successors, (2070), 1520 states have internal predecessors, (2070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 2070 transitions. [2025-03-08 06:16:30,254 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 2070 transitions. Word has length 51 [2025-03-08 06:16:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:30,254 INFO L471 AbstractCegarLoop]: Abstraction has 1521 states and 2070 transitions. [2025-03-08 06:16:30,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 2070 transitions. [2025-03-08 06:16:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-08 06:16:30,255 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:30,255 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] [2025-03-08 06:16:30,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 06:16:30,256 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:30,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:30,256 INFO L85 PathProgramCache]: Analyzing trace with hash 694133028, now seen corresponding path program 1 times [2025-03-08 06:16:30,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:30,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675737455] [2025-03-08 06:16:30,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:30,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-08 06:16:30,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-08 06:16:30,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:30,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:30,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:30,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:30,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675737455] [2025-03-08 06:16:30,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675737455] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:30,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:30,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:16:30,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145158553] [2025-03-08 06:16:30,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:30,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 06:16:30,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:30,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 06:16:30,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:30,407 INFO L87 Difference]: Start difference. First operand 1521 states and 2070 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:30,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:30,749 INFO L93 Difference]: Finished difference Result 3020 states and 4171 transitions. [2025-03-08 06:16:30,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 06:16:30,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2025-03-08 06:16:30,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:30,756 INFO L225 Difference]: With dead ends: 3020 [2025-03-08 06:16:30,756 INFO L226 Difference]: Without dead ends: 2587 [2025-03-08 06:16:30,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:16:30,758 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 1846 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:30,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 611 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2025-03-08 06:16:30,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 1533. [2025-03-08 06:16:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1529 states have (on average 1.3642903858731197) internal successors, (2086), 1532 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:30,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2086 transitions. [2025-03-08 06:16:30,795 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2086 transitions. Word has length 52 [2025-03-08 06:16:30,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:30,795 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 2086 transitions. [2025-03-08 06:16:30,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2086 transitions. [2025-03-08 06:16:30,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-08 06:16:30,797 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:30,797 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:30,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 06:16:30,797 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:30,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:30,798 INFO L85 PathProgramCache]: Analyzing trace with hash -709700333, now seen corresponding path program 1 times [2025-03-08 06:16:30,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:30,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251999132] [2025-03-08 06:16:30,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:30,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:30,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 06:16:30,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 06:16:30,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:30,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:30,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:30,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:30,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251999132] [2025-03-08 06:16:30,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251999132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:30,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:30,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:16:30,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418271055] [2025-03-08 06:16:30,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:30,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 06:16:30,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:30,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 06:16:30,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:30,937 INFO L87 Difference]: Start difference. First operand 1533 states and 2086 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:31,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:31,254 INFO L93 Difference]: Finished difference Result 3012 states and 4152 transitions. [2025-03-08 06:16:31,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 06:16:31,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2025-03-08 06:16:31,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:31,261 INFO L225 Difference]: With dead ends: 3012 [2025-03-08 06:16:31,262 INFO L226 Difference]: Without dead ends: 2291 [2025-03-08 06:16:31,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:16:31,264 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 1593 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:31,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 571 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:31,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2025-03-08 06:16:31,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 1547. [2025-03-08 06:16:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1543 states have (on average 1.3635774465327284) internal successors, (2104), 1546 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2104 transitions. [2025-03-08 06:16:31,308 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2104 transitions. Word has length 53 [2025-03-08 06:16:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:31,309 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2104 transitions. [2025-03-08 06:16:31,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2104 transitions. [2025-03-08 06:16:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-08 06:16:31,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:31,311 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] [2025-03-08 06:16:31,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 06:16:31,311 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:31,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:31,312 INFO L85 PathProgramCache]: Analyzing trace with hash -793033326, now seen corresponding path program 1 times [2025-03-08 06:16:31,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:31,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441485506] [2025-03-08 06:16:31,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:31,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:31,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-08 06:16:31,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-08 06:16:31,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:31,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:31,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441485506] [2025-03-08 06:16:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441485506] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:31,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:31,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:16:31,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304266786] [2025-03-08 06:16:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:31,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 06:16:31,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:31,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 06:16:31,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:31,426 INFO L87 Difference]: Start difference. First operand 1547 states and 2104 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:31,744 INFO L93 Difference]: Finished difference Result 3306 states and 4587 transitions. [2025-03-08 06:16:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 06:16:31,745 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2025-03-08 06:16:31,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:31,752 INFO L225 Difference]: With dead ends: 3306 [2025-03-08 06:16:31,752 INFO L226 Difference]: Without dead ends: 2756 [2025-03-08 06:16:31,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:16:31,754 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 1718 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:31,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 592 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:31,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2756 states. [2025-03-08 06:16:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2756 to 1569. [2025-03-08 06:16:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3642172523961662) internal successors, (2135), 1568 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:31,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2135 transitions. [2025-03-08 06:16:31,815 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2135 transitions. Word has length 53 [2025-03-08 06:16:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:31,815 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2135 transitions. [2025-03-08 06:16:31,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2135 transitions. [2025-03-08 06:16:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-08 06:16:31,817 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:31,817 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] [2025-03-08 06:16:31,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 06:16:31,817 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:31,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:31,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1336493181, now seen corresponding path program 1 times [2025-03-08 06:16:31,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:31,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062627095] [2025-03-08 06:16:31,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:31,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:31,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 06:16:31,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 06:16:31,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:31,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:32,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:32,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062627095] [2025-03-08 06:16:32,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062627095] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:32,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:32,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 06:16:32,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521298135] [2025-03-08 06:16:32,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:32,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 06:16:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:32,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 06:16:32,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 06:16:32,043 INFO L87 Difference]: Start difference. First operand 1569 states and 2135 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:32,427 INFO L93 Difference]: Finished difference Result 3764 states and 5239 transitions. [2025-03-08 06:16:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:16:32,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2025-03-08 06:16:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:32,434 INFO L225 Difference]: With dead ends: 3764 [2025-03-08 06:16:32,434 INFO L226 Difference]: Without dead ends: 2714 [2025-03-08 06:16:32,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:16:32,436 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 1614 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:32,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 826 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:32,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2025-03-08 06:16:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 1569. [2025-03-08 06:16:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1565 states have (on average 1.3610223642172523) internal successors, (2130), 1568 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:32,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2130 transitions. [2025-03-08 06:16:32,465 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2130 transitions. Word has length 54 [2025-03-08 06:16:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:32,465 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2130 transitions. [2025-03-08 06:16:32,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2130 transitions. [2025-03-08 06:16:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-08 06:16:32,466 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:32,466 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] [2025-03-08 06:16:32,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 06:16:32,466 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:32,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:32,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2052879546, now seen corresponding path program 1 times [2025-03-08 06:16:32,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:32,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006253391] [2025-03-08 06:16:32,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:32,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:32,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 06:16:32,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 06:16:32,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:32,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:32,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:32,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:32,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006253391] [2025-03-08 06:16:32,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006253391] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:32,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:32,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:16:32,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954109859] [2025-03-08 06:16:32,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:32,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:16:32,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:32,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:16:32,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:16:32,685 INFO L87 Difference]: Start difference. First operand 1569 states and 2130 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:33,135 INFO L93 Difference]: Finished difference Result 3631 states and 5036 transitions. [2025-03-08 06:16:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 06:16:33,135 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2025-03-08 06:16:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:33,141 INFO L225 Difference]: With dead ends: 3631 [2025-03-08 06:16:33,141 INFO L226 Difference]: Without dead ends: 2709 [2025-03-08 06:16:33,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-03-08 06:16:33,144 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 1298 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:33,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 1233 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2025-03-08 06:16:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 1540. [2025-03-08 06:16:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3600260416666667) internal successors, (2089), 1539 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2089 transitions. [2025-03-08 06:16:33,168 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2089 transitions. Word has length 54 [2025-03-08 06:16:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:33,168 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2089 transitions. [2025-03-08 06:16:33,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2089 transitions. [2025-03-08 06:16:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-08 06:16:33,170 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:33,170 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] [2025-03-08 06:16:33,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 06:16:33,170 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:33,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:33,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1976910397, now seen corresponding path program 1 times [2025-03-08 06:16:33,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:33,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199418115] [2025-03-08 06:16:33,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:33,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:33,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-08 06:16:33,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-08 06:16:33,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:33,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:33,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:33,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199418115] [2025-03-08 06:16:33,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199418115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:33,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:33,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:16:33,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906317054] [2025-03-08 06:16:33,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:33,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:16:33,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:33,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:16:33,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:16:33,383 INFO L87 Difference]: Start difference. First operand 1540 states and 2089 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:33,845 INFO L93 Difference]: Finished difference Result 2774 states and 3813 transitions. [2025-03-08 06:16:33,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 06:16:33,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2025-03-08 06:16:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:33,851 INFO L225 Difference]: With dead ends: 2774 [2025-03-08 06:16:33,851 INFO L226 Difference]: Without dead ends: 2769 [2025-03-08 06:16:33,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2025-03-08 06:16:33,852 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 1689 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:33,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 1120 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2025-03-08 06:16:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 1540. [2025-03-08 06:16:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1536 states have (on average 1.3587239583333333) internal successors, (2087), 1539 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2087 transitions. [2025-03-08 06:16:33,875 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2087 transitions. Word has length 54 [2025-03-08 06:16:33,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:33,875 INFO L471 AbstractCegarLoop]: Abstraction has 1540 states and 2087 transitions. [2025-03-08 06:16:33,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2087 transitions. [2025-03-08 06:16:33,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:16:33,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:33,876 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] [2025-03-08 06:16:33,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 06:16:33,877 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:33,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:33,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1925250035, now seen corresponding path program 1 times [2025-03-08 06:16:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:33,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776477243] [2025-03-08 06:16:33,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:33,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:33,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:16:33,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:16:33,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:33,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:33,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:33,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776477243] [2025-03-08 06:16:33,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776477243] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:33,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:33,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:33,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515973003] [2025-03-08 06:16:33,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:33,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:33,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:33,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:33,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:33,920 INFO L87 Difference]: Start difference. First operand 1540 states and 2087 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:33,940 INFO L93 Difference]: Finished difference Result 2068 states and 2797 transitions. [2025-03-08 06:16:33,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:33,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2025-03-08 06:16:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:33,943 INFO L225 Difference]: With dead ends: 2068 [2025-03-08 06:16:33,943 INFO L226 Difference]: Without dead ends: 1509 [2025-03-08 06:16:33,944 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 [2025-03-08 06:16:33,944 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 257 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:33,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 673 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:33,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2025-03-08 06:16:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1507. [2025-03-08 06:16:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3293413173652695) internal successors, (1998), 1506 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1998 transitions. [2025-03-08 06:16:33,975 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1998 transitions. Word has length 55 [2025-03-08 06:16:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:33,976 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1998 transitions. [2025-03-08 06:16:33,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1998 transitions. [2025-03-08 06:16:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:16:33,977 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:33,977 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] [2025-03-08 06:16:33,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 06:16:33,977 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:33,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1120816783, now seen corresponding path program 1 times [2025-03-08 06:16:33,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:33,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445316477] [2025-03-08 06:16:33,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:33,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:33,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:16:33,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:16:33,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:33,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:34,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:34,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445316477] [2025-03-08 06:16:34,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445316477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:34,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:34,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:34,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306329718] [2025-03-08 06:16:34,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:34,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:34,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:34,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:34,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:34,023 INFO L87 Difference]: Start difference. First operand 1507 states and 1998 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:34,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:34,046 INFO L93 Difference]: Finished difference Result 2164 states and 2895 transitions. [2025-03-08 06:16:34,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:34,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2025-03-08 06:16:34,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:34,050 INFO L225 Difference]: With dead ends: 2164 [2025-03-08 06:16:34,050 INFO L226 Difference]: Without dead ends: 1513 [2025-03-08 06:16:34,051 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 [2025-03-08 06:16:34,051 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 222 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:34,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 745 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2025-03-08 06:16:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1507. [2025-03-08 06:16:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3173652694610778) internal successors, (1980), 1506 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:34,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1980 transitions. [2025-03-08 06:16:34,067 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1980 transitions. Word has length 55 [2025-03-08 06:16:34,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:34,067 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1980 transitions. [2025-03-08 06:16:34,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:34,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1980 transitions. [2025-03-08 06:16:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-08 06:16:34,068 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:34,068 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] [2025-03-08 06:16:34,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 06:16:34,069 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:34,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:34,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1113984237, now seen corresponding path program 1 times [2025-03-08 06:16:34,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:34,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208566150] [2025-03-08 06:16:34,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:34,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:34,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-08 06:16:34,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-08 06:16:34,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:34,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:34,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:34,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208566150] [2025-03-08 06:16:34,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208566150] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:34,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:34,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775022011] [2025-03-08 06:16:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:34,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:34,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:34,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:34,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:34,115 INFO L87 Difference]: Start difference. First operand 1507 states and 1980 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:34,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:34,154 INFO L93 Difference]: Finished difference Result 2127 states and 2817 transitions. [2025-03-08 06:16:34,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:34,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2025-03-08 06:16:34,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:34,157 INFO L225 Difference]: With dead ends: 2127 [2025-03-08 06:16:34,157 INFO L226 Difference]: Without dead ends: 1514 [2025-03-08 06:16:34,158 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 [2025-03-08 06:16:34,158 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 206 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:34,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 740 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2025-03-08 06:16:34,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1507. [2025-03-08 06:16:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1503 states have (on average 1.3020625415834997) internal successors, (1957), 1506 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 1957 transitions. [2025-03-08 06:16:34,172 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 1957 transitions. Word has length 55 [2025-03-08 06:16:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:34,173 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 1957 transitions. [2025-03-08 06:16:34,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 1957 transitions. [2025-03-08 06:16:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-08 06:16:34,174 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:34,174 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] [2025-03-08 06:16:34,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 06:16:34,174 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:34,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:34,175 INFO L85 PathProgramCache]: Analyzing trace with hash 552595763, now seen corresponding path program 1 times [2025-03-08 06:16:34,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:34,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130537759] [2025-03-08 06:16:34,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:34,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:34,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-08 06:16:34,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-08 06:16:34,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:34,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:34,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:34,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130537759] [2025-03-08 06:16:34,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130537759] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:34,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:34,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-03-08 06:16:34,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837183870] [2025-03-08 06:16:34,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:34,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-08 06:16:34,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:34,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-08 06:16:34,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:16:34,937 INFO L87 Difference]: Start difference. First operand 1507 states and 1957 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:36,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:36,451 INFO L93 Difference]: Finished difference Result 2452 states and 3205 transitions. [2025-03-08 06:16:36,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-08 06:16:36,451 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2025-03-08 06:16:36,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:36,456 INFO L225 Difference]: With dead ends: 2452 [2025-03-08 06:16:36,456 INFO L226 Difference]: Without dead ends: 2448 [2025-03-08 06:16:36,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2025-03-08 06:16:36,457 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 1988 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:36,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 3446 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 06:16:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2025-03-08 06:16:36,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 1519. [2025-03-08 06:16:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1515 states have (on average 1.302970297029703) internal successors, (1974), 1518 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1974 transitions. [2025-03-08 06:16:36,475 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1974 transitions. Word has length 57 [2025-03-08 06:16:36,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:36,475 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 1974 transitions. [2025-03-08 06:16:36,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1974 transitions. [2025-03-08 06:16:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-08 06:16:36,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:36,476 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] [2025-03-08 06:16:36,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-08 06:16:36,476 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:36,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:36,477 INFO L85 PathProgramCache]: Analyzing trace with hash 60205327, now seen corresponding path program 1 times [2025-03-08 06:16:36,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:36,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118786058] [2025-03-08 06:16:36,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:36,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:36,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-08 06:16:36,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-08 06:16:36,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:36,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:37,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:37,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118786058] [2025-03-08 06:16:37,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118786058] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:37,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:37,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-03-08 06:16:37,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475581719] [2025-03-08 06:16:37,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:37,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-08 06:16:37,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:37,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-08 06:16:37,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:16:37,123 INFO L87 Difference]: Start difference. First operand 1519 states and 1974 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:38,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:38,514 INFO L93 Difference]: Finished difference Result 3205 states and 4228 transitions. [2025-03-08 06:16:38,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-08 06:16:38,515 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2025-03-08 06:16:38,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:38,522 INFO L225 Difference]: With dead ends: 3205 [2025-03-08 06:16:38,522 INFO L226 Difference]: Without dead ends: 3201 [2025-03-08 06:16:38,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2025-03-08 06:16:38,523 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 2916 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:38,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2916 Valid, 3292 Invalid, 1804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 06:16:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2025-03-08 06:16:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 1526. [2025-03-08 06:16:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1522 states have (on average 1.3028909329829172) internal successors, (1983), 1525 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1983 transitions. [2025-03-08 06:16:38,541 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1983 transitions. Word has length 57 [2025-03-08 06:16:38,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:38,541 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 1983 transitions. [2025-03-08 06:16:38,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1983 transitions. [2025-03-08 06:16:38,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-08 06:16:38,542 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:38,542 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] [2025-03-08 06:16:38,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-08 06:16:38,542 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash -144357485, now seen corresponding path program 1 times [2025-03-08 06:16:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874209667] [2025-03-08 06:16:38,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:38,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-08 06:16:38,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-08 06:16:38,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:38,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:38,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:38,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874209667] [2025-03-08 06:16:38,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874209667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:38,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:38,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-08 06:16:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823143748] [2025-03-08 06:16:38,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:38,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-08 06:16:38,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:38,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-08 06:16:38,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-08 06:16:38,916 INFO L87 Difference]: Start difference. First operand 1526 states and 1983 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:39,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:39,504 INFO L93 Difference]: Finished difference Result 3894 states and 5189 transitions. [2025-03-08 06:16:39,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 06:16:39,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2025-03-08 06:16:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:39,509 INFO L225 Difference]: With dead ends: 3894 [2025-03-08 06:16:39,510 INFO L226 Difference]: Without dead ends: 3830 [2025-03-08 06:16:39,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2025-03-08 06:16:39,511 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 2807 mSDsluCounter, 2022 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2807 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:39,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2807 Valid, 2384 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:39,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2025-03-08 06:16:39,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 1511. [2025-03-08 06:16:39,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1508 states have (on average 1.3030503978779842) internal successors, (1965), 1510 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 1965 transitions. [2025-03-08 06:16:39,528 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 1965 transitions. Word has length 57 [2025-03-08 06:16:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:39,528 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 1965 transitions. [2025-03-08 06:16:39,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 1965 transitions. [2025-03-08 06:16:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-08 06:16:39,529 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:39,530 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] [2025-03-08 06:16:39,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-08 06:16:39,530 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:39,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1007278968, now seen corresponding path program 1 times [2025-03-08 06:16:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:39,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92524908] [2025-03-08 06:16:39,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:39,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:39,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-08 06:16:39,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-08 06:16:39,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:39,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:39,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:39,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:39,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92524908] [2025-03-08 06:16:39,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92524908] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:39,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:39,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:39,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627286296] [2025-03-08 06:16:39,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:39,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:39,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:39,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:39,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:39,562 INFO L87 Difference]: Start difference. First operand 1511 states and 1965 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:39,596 INFO L93 Difference]: Finished difference Result 2658 states and 3494 transitions. [2025-03-08 06:16:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:39,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2025-03-08 06:16:39,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:39,598 INFO L225 Difference]: With dead ends: 2658 [2025-03-08 06:16:39,599 INFO L226 Difference]: Without dead ends: 1788 [2025-03-08 06:16:39,599 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 [2025-03-08 06:16:39,600 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 269 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:39,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 442 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:39,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2025-03-08 06:16:39,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1431. [2025-03-08 06:16:39,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 1428 states have (on average 1.303921568627451) internal successors, (1862), 1430 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1862 transitions. [2025-03-08 06:16:39,610 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1862 transitions. Word has length 57 [2025-03-08 06:16:39,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:39,610 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 1862 transitions. [2025-03-08 06:16:39,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1862 transitions. [2025-03-08 06:16:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-08 06:16:39,611 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:39,612 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:39,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-08 06:16:39,612 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:39,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:39,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1787029730, now seen corresponding path program 1 times [2025-03-08 06:16:39,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:39,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427748916] [2025-03-08 06:16:39,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:39,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:39,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-08 06:16:39,637 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-08 06:16:39,637 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:39,637 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:39,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:39,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427748916] [2025-03-08 06:16:39,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427748916] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:39,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:39,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 06:16:39,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289932719] [2025-03-08 06:16:39,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:39,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 06:16:39,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:39,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 06:16:39,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:16:39,958 INFO L87 Difference]: Start difference. First operand 1431 states and 1862 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:40,480 INFO L93 Difference]: Finished difference Result 2018 states and 2655 transitions. [2025-03-08 06:16:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 06:16:40,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2025-03-08 06:16:40,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:40,483 INFO L225 Difference]: With dead ends: 2018 [2025-03-08 06:16:40,483 INFO L226 Difference]: Without dead ends: 2014 [2025-03-08 06:16:40,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2025-03-08 06:16:40,484 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 1535 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:40,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1800 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:40,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2025-03-08 06:16:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1420. [2025-03-08 06:16:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1418 states have (on average 1.3039492242595205) internal successors, (1849), 1419 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1849 transitions. [2025-03-08 06:16:40,497 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1849 transitions. Word has length 58 [2025-03-08 06:16:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:40,497 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 1849 transitions. [2025-03-08 06:16:40,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:40,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1849 transitions. [2025-03-08 06:16:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-08 06:16:40,498 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:40,499 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:40,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 06:16:40,499 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:40,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:40,499 INFO L85 PathProgramCache]: Analyzing trace with hash -748031970, now seen corresponding path program 1 times [2025-03-08 06:16:40,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:40,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766204240] [2025-03-08 06:16:40,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:40,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:40,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-08 06:16:40,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-08 06:16:40,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:40,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:40,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:40,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766204240] [2025-03-08 06:16:40,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766204240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:40,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:40,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-08 06:16:40,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718932082] [2025-03-08 06:16:40,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:40,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 06:16:40,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:40,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 06:16:40,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:16:40,931 INFO L87 Difference]: Start difference. First operand 1420 states and 1849 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:41,606 INFO L93 Difference]: Finished difference Result 2825 states and 3740 transitions. [2025-03-08 06:16:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-08 06:16:41,607 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2025-03-08 06:16:41,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:41,610 INFO L225 Difference]: With dead ends: 2825 [2025-03-08 06:16:41,610 INFO L226 Difference]: Without dead ends: 2610 [2025-03-08 06:16:41,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2025-03-08 06:16:41,611 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 1864 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:41,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 1913 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:41,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2025-03-08 06:16:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 1383. [2025-03-08 06:16:41,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.3039073806078147) internal successors, (1802), 1382 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1802 transitions. [2025-03-08 06:16:41,629 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1802 transitions. Word has length 58 [2025-03-08 06:16:41,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:41,629 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 1802 transitions. [2025-03-08 06:16:41,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1802 transitions. [2025-03-08 06:16:41,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-08 06:16:41,631 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:41,631 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] [2025-03-08 06:16:41,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 06:16:41,631 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:41,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:41,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1351026747, now seen corresponding path program 1 times [2025-03-08 06:16:41,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:41,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019394787] [2025-03-08 06:16:41,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:41,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:41,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-08 06:16:41,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-08 06:16:41,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:41,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:41,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:41,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:41,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019394787] [2025-03-08 06:16:41,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019394787] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:41,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:41,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:16:41,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873420125] [2025-03-08 06:16:41,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:41,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:41,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:41,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:41,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:41,687 INFO L87 Difference]: Start difference. First operand 1383 states and 1802 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:41,743 INFO L93 Difference]: Finished difference Result 3192 states and 4310 transitions. [2025-03-08 06:16:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:41,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2025-03-08 06:16:41,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:41,748 INFO L225 Difference]: With dead ends: 3192 [2025-03-08 06:16:41,748 INFO L226 Difference]: Without dead ends: 2458 [2025-03-08 06:16:41,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:41,751 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 925 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:41,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 751 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2025-03-08 06:16:41,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 2107. [2025-03-08 06:16:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 2106 states have (on average 1.3133903133903133) internal successors, (2766), 2106 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2766 transitions. [2025-03-08 06:16:41,768 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2766 transitions. Word has length 66 [2025-03-08 06:16:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:41,769 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2766 transitions. [2025-03-08 06:16:41,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2766 transitions. [2025-03-08 06:16:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-08 06:16:41,771 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:41,771 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:41,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 06:16:41,771 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:41,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1097429462, now seen corresponding path program 1 times [2025-03-08 06:16:41,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:41,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274371009] [2025-03-08 06:16:41,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:41,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:41,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-08 06:16:41,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-08 06:16:41,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:41,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:41,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:41,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:41,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274371009] [2025-03-08 06:16:41,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274371009] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:41,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:41,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:16:41,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157634732] [2025-03-08 06:16:41,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:41,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:41,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:41,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:41,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:41,837 INFO L87 Difference]: Start difference. First operand 2107 states and 2766 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:41,886 INFO L93 Difference]: Finished difference Result 2113 states and 2769 transitions. [2025-03-08 06:16:41,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:41,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2025-03-08 06:16:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:41,889 INFO L225 Difference]: With dead ends: 2113 [2025-03-08 06:16:41,889 INFO L226 Difference]: Without dead ends: 1888 [2025-03-08 06:16:41,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:41,890 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 763 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:41,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 686 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2025-03-08 06:16:41,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1884. [2025-03-08 06:16:41,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1883 states have (on average 1.3175783324482209) internal successors, (2481), 1883 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2481 transitions. [2025-03-08 06:16:41,909 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2481 transitions. Word has length 67 [2025-03-08 06:16:41,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:41,909 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2481 transitions. [2025-03-08 06:16:41,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:41,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2481 transitions. [2025-03-08 06:16:41,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 06:16:41,912 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:41,912 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] [2025-03-08 06:16:41,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 06:16:41,912 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:41,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:41,913 INFO L85 PathProgramCache]: Analyzing trace with hash 668259805, now seen corresponding path program 1 times [2025-03-08 06:16:41,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:41,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069441586] [2025-03-08 06:16:41,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:41,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 06:16:41,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 06:16:41,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:41,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:41,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:41,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069441586] [2025-03-08 06:16:41,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069441586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:41,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:41,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:41,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133568684] [2025-03-08 06:16:41,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:41,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:41,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:41,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:41,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:41,971 INFO L87 Difference]: Start difference. First operand 1884 states and 2481 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:42,009 INFO L93 Difference]: Finished difference Result 4140 states and 5567 transitions. [2025-03-08 06:16:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:42,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2025-03-08 06:16:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:42,014 INFO L225 Difference]: With dead ends: 4140 [2025-03-08 06:16:42,014 INFO L226 Difference]: Without dead ends: 2962 [2025-03-08 06:16:42,015 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 [2025-03-08 06:16:42,016 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 118 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:42,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 536 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:42,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2025-03-08 06:16:42,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2808. [2025-03-08 06:16:42,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2808 states, 2807 states have (on average 1.3291770573566084) internal successors, (3731), 2807 states have internal predecessors, (3731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 3731 transitions. [2025-03-08 06:16:42,039 INFO L78 Accepts]: Start accepts. Automaton has 2808 states and 3731 transitions. Word has length 68 [2025-03-08 06:16:42,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:42,039 INFO L471 AbstractCegarLoop]: Abstraction has 2808 states and 3731 transitions. [2025-03-08 06:16:42,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2808 states and 3731 transitions. [2025-03-08 06:16:42,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-08 06:16:42,041 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:42,041 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:42,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 06:16:42,041 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:42,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:42,042 INFO L85 PathProgramCache]: Analyzing trace with hash -109940470, now seen corresponding path program 1 times [2025-03-08 06:16:42,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:42,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233000666] [2025-03-08 06:16:42,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:42,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:42,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 06:16:42,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 06:16:42,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:42,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:42,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:42,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233000666] [2025-03-08 06:16:42,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233000666] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:42,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:42,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:42,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583382680] [2025-03-08 06:16:42,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:42,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:42,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:42,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:42,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:42,108 INFO L87 Difference]: Start difference. First operand 2808 states and 3731 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:42,134 INFO L93 Difference]: Finished difference Result 6796 states and 9125 transitions. [2025-03-08 06:16:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2025-03-08 06:16:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:42,141 INFO L225 Difference]: With dead ends: 6796 [2025-03-08 06:16:42,141 INFO L226 Difference]: Without dead ends: 4562 [2025-03-08 06:16:42,144 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 [2025-03-08 06:16:42,145 INFO L435 NwaCegarLoop]: 342 mSDtfsCounter, 126 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:42,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 531 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2025-03-08 06:16:42,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 4304. [2025-03-08 06:16:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4303 states have (on average 1.3234952358819427) internal successors, (5695), 4303 states have internal predecessors, (5695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 5695 transitions. [2025-03-08 06:16:42,185 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 5695 transitions. Word has length 70 [2025-03-08 06:16:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:42,185 INFO L471 AbstractCegarLoop]: Abstraction has 4304 states and 5695 transitions. [2025-03-08 06:16:42,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 5695 transitions. [2025-03-08 06:16:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-08 06:16:42,186 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:42,187 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:42,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 06:16:42,187 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:42,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1131872486, now seen corresponding path program 1 times [2025-03-08 06:16:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:42,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427171291] [2025-03-08 06:16:42,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:42,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 06:16:42,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 06:16:42,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:42,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:42,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:42,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:42,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427171291] [2025-03-08 06:16:42,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427171291] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:42,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:42,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:42,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822201849] [2025-03-08 06:16:42,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:42,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:42,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:42,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:42,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:42,278 INFO L87 Difference]: Start difference. First operand 4304 states and 5695 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:42,325 INFO L93 Difference]: Finished difference Result 11316 states and 15129 transitions. [2025-03-08 06:16:42,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:42,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2025-03-08 06:16:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:42,338 INFO L225 Difference]: With dead ends: 11316 [2025-03-08 06:16:42,338 INFO L226 Difference]: Without dead ends: 7610 [2025-03-08 06:16:42,343 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 [2025-03-08 06:16:42,344 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 85 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:42,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 519 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2025-03-08 06:16:42,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 6872. [2025-03-08 06:16:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6872 states, 6871 states have (on average 1.3172755057487993) internal successors, (9051), 6871 states have internal predecessors, (9051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6872 states to 6872 states and 9051 transitions. [2025-03-08 06:16:42,423 INFO L78 Accepts]: Start accepts. Automaton has 6872 states and 9051 transitions. Word has length 70 [2025-03-08 06:16:42,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:42,424 INFO L471 AbstractCegarLoop]: Abstraction has 6872 states and 9051 transitions. [2025-03-08 06:16:42,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6872 states and 9051 transitions. [2025-03-08 06:16:42,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 06:16:42,425 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:42,425 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] [2025-03-08 06:16:42,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 06:16:42,426 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:42,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1878464071, now seen corresponding path program 1 times [2025-03-08 06:16:42,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:42,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199560746] [2025-03-08 06:16:42,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:42,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 06:16:42,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 06:16:42,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:42,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:42,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:42,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199560746] [2025-03-08 06:16:42,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199560746] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:42,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:42,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:16:42,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305977790] [2025-03-08 06:16:42,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:42,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 06:16:42,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:42,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 06:16:42,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:16:42,587 INFO L87 Difference]: Start difference. First operand 6872 states and 9051 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:42,648 INFO L93 Difference]: Finished difference Result 7546 states and 9948 transitions. [2025-03-08 06:16:42,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:16:42,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2025-03-08 06:16:42,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:42,659 INFO L225 Difference]: With dead ends: 7546 [2025-03-08 06:16:42,659 INFO L226 Difference]: Without dead ends: 7544 [2025-03-08 06:16:42,660 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 06:16:42,660 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 0 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:42,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1278 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:42,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2025-03-08 06:16:42,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7544. [2025-03-08 06:16:42,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 1.2890096778470104) internal successors, (9723), 7543 states have internal predecessors, (9723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 9723 transitions. [2025-03-08 06:16:42,722 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 9723 transitions. Word has length 72 [2025-03-08 06:16:42,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:42,723 INFO L471 AbstractCegarLoop]: Abstraction has 7544 states and 9723 transitions. [2025-03-08 06:16:42,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,723 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 9723 transitions. [2025-03-08 06:16:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-08 06:16:42,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:42,724 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] [2025-03-08 06:16:42,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-08 06:16:42,725 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:42,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:42,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2044952290, now seen corresponding path program 1 times [2025-03-08 06:16:42,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:42,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311839749] [2025-03-08 06:16:42,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:42,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:42,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-08 06:16:42,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-08 06:16:42,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:42,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:42,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:42,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:42,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311839749] [2025-03-08 06:16:42,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311839749] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:42,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:42,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:42,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553819597] [2025-03-08 06:16:42,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:42,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:42,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:42,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:42,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:42,764 INFO L87 Difference]: Start difference. First operand 7544 states and 9723 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:42,809 INFO L93 Difference]: Finished difference Result 17924 states and 23109 transitions. [2025-03-08 06:16:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:42,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2025-03-08 06:16:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:42,826 INFO L225 Difference]: With dead ends: 17924 [2025-03-08 06:16:42,826 INFO L226 Difference]: Without dead ends: 10978 [2025-03-08 06:16:42,834 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 [2025-03-08 06:16:42,834 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 171 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:42,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 391 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:42,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10978 states. [2025-03-08 06:16:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10978 to 10976. [2025-03-08 06:16:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10976 states, 10975 states have (on average 1.2707972665148064) internal successors, (13947), 10975 states have internal predecessors, (13947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10976 states to 10976 states and 13947 transitions. [2025-03-08 06:16:42,928 INFO L78 Accepts]: Start accepts. Automaton has 10976 states and 13947 transitions. Word has length 73 [2025-03-08 06:16:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:42,928 INFO L471 AbstractCegarLoop]: Abstraction has 10976 states and 13947 transitions. [2025-03-08 06:16:42,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 10976 states and 13947 transitions. [2025-03-08 06:16:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 06:16:42,929 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:42,930 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] [2025-03-08 06:16:42,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-08 06:16:42,930 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:42,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:42,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1945722486, now seen corresponding path program 1 times [2025-03-08 06:16:42,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083857316] [2025-03-08 06:16:42,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:42,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:42,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 06:16:42,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 06:16:42,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:42,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:43,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083857316] [2025-03-08 06:16:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083857316] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:43,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:16:43,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057837264] [2025-03-08 06:16:43,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:43,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:43,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:43,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:43,015 INFO L87 Difference]: Start difference. First operand 10976 states and 13947 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:43,086 INFO L93 Difference]: Finished difference Result 16088 states and 20573 transitions. [2025-03-08 06:16:43,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:43,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2025-03-08 06:16:43,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:43,106 INFO L225 Difference]: With dead ends: 16088 [2025-03-08 06:16:43,106 INFO L226 Difference]: Without dead ends: 13770 [2025-03-08 06:16:43,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:43,113 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 565 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:43,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 850 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:43,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13770 states. [2025-03-08 06:16:43,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13770 to 12522. [2025-03-08 06:16:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 12521 states have (on average 1.2680297100870537) internal successors, (15877), 12521 states have internal predecessors, (15877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 15877 transitions. [2025-03-08 06:16:43,224 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 15877 transitions. Word has length 74 [2025-03-08 06:16:43,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:43,224 INFO L471 AbstractCegarLoop]: Abstraction has 12522 states and 15877 transitions. [2025-03-08 06:16:43,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 15877 transitions. [2025-03-08 06:16:43,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-08 06:16:43,226 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:43,226 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] [2025-03-08 06:16:43,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-08 06:16:43,227 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:43,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:43,227 INFO L85 PathProgramCache]: Analyzing trace with hash -2008331307, now seen corresponding path program 1 times [2025-03-08 06:16:43,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:43,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941847241] [2025-03-08 06:16:43,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:43,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:43,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-08 06:16:43,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-08 06:16:43,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:43,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:43,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:43,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941847241] [2025-03-08 06:16:43,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941847241] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:43,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:43,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:16:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559094428] [2025-03-08 06:16:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:43,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:16:43,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:43,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:16:43,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:16:43,264 INFO L87 Difference]: Start difference. First operand 12522 states and 15877 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:43,333 INFO L93 Difference]: Finished difference Result 24522 states and 31124 transitions. [2025-03-08 06:16:43,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:16:43,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2025-03-08 06:16:43,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:43,359 INFO L225 Difference]: With dead ends: 24522 [2025-03-08 06:16:43,359 INFO L226 Difference]: Without dead ends: 18310 [2025-03-08 06:16:43,368 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 [2025-03-08 06:16:43,369 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 201 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:43,370 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 327 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:43,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18310 states. [2025-03-08 06:16:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18310 to 12225. [2025-03-08 06:16:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12225 states, 12224 states have (on average 1.2653795811518325) internal successors, (15468), 12224 states have internal predecessors, (15468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12225 states to 12225 states and 15468 transitions. [2025-03-08 06:16:43,555 INFO L78 Accepts]: Start accepts. Automaton has 12225 states and 15468 transitions. Word has length 79 [2025-03-08 06:16:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:43,555 INFO L471 AbstractCegarLoop]: Abstraction has 12225 states and 15468 transitions. [2025-03-08 06:16:43,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 12225 states and 15468 transitions. [2025-03-08 06:16:43,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-08 06:16:43,556 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:43,556 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] [2025-03-08 06:16:43,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-08 06:16:43,557 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:43,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:43,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1039059732, now seen corresponding path program 1 times [2025-03-08 06:16:43,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:43,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956764202] [2025-03-08 06:16:43,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:43,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:43,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-08 06:16:43,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-08 06:16:43,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:43,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:43,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:43,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956764202] [2025-03-08 06:16:43,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956764202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:43,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:43,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:16:43,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389068090] [2025-03-08 06:16:43,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:43,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:43,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:43,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:43,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:43,632 INFO L87 Difference]: Start difference. First operand 12225 states and 15468 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:43,700 INFO L93 Difference]: Finished difference Result 18089 states and 23068 transitions. [2025-03-08 06:16:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:43,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2025-03-08 06:16:43,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:43,724 INFO L225 Difference]: With dead ends: 18089 [2025-03-08 06:16:43,724 INFO L226 Difference]: Without dead ends: 14559 [2025-03-08 06:16:43,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:43,730 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 584 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:43,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 709 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14559 states. [2025-03-08 06:16:43,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14559 to 14133. [2025-03-08 06:16:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14133 states, 14132 states have (on average 1.2621001981318993) internal successors, (17836), 14132 states have internal predecessors, (17836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14133 states to 14133 states and 17836 transitions. [2025-03-08 06:16:43,898 INFO L78 Accepts]: Start accepts. Automaton has 14133 states and 17836 transitions. Word has length 79 [2025-03-08 06:16:43,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:43,898 INFO L471 AbstractCegarLoop]: Abstraction has 14133 states and 17836 transitions. [2025-03-08 06:16:43,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:43,898 INFO L276 IsEmpty]: Start isEmpty. Operand 14133 states and 17836 transitions. [2025-03-08 06:16:43,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-08 06:16:43,903 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:43,903 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:43,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-08 06:16:43,903 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:43,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash 942180639, now seen corresponding path program 1 times [2025-03-08 06:16:43,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:43,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580843706] [2025-03-08 06:16:43,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:43,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:43,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-08 06:16:43,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-08 06:16:43,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:43,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:44,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:44,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580843706] [2025-03-08 06:16:44,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580843706] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:16:44,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173489893] [2025-03-08 06:16:44,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:44,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:16:44,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:16:44,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:16:44,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 06:16:44,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-08 06:16:44,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-08 06:16:44,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:44,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:44,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-08 06:16:44,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:16:44,750 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:44,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:16:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:45,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173489893] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:16:45,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:16:45,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 21 [2025-03-08 06:16:45,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376035369] [2025-03-08 06:16:45,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:16:45,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-08 06:16:45,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:45,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-08 06:16:45,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2025-03-08 06:16:45,328 INFO L87 Difference]: Start difference. First operand 14133 states and 17836 transitions. Second operand has 21 states, 21 states have (on average 11.380952380952381) internal successors, (239), 21 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:46,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:46,792 INFO L93 Difference]: Finished difference Result 63296 states and 79862 transitions. [2025-03-08 06:16:46,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-03-08 06:16:46,793 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.380952380952381) internal successors, (239), 21 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2025-03-08 06:16:46,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:46,871 INFO L225 Difference]: With dead ends: 63296 [2025-03-08 06:16:46,871 INFO L226 Difference]: Without dead ends: 49676 [2025-03-08 06:16:46,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1731 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1156, Invalid=3674, Unknown=0, NotChecked=0, Total=4830 [2025-03-08 06:16:46,894 INFO L435 NwaCegarLoop]: 580 mSDtfsCounter, 3543 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 3659 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:46,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3543 Valid, 3659 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:16:46,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49676 states. [2025-03-08 06:16:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49676 to 37419. [2025-03-08 06:16:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37419 states, 37418 states have (on average 1.2555454594045647) internal successors, (46980), 37418 states have internal predecessors, (46980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:47,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37419 states to 37419 states and 46980 transitions. [2025-03-08 06:16:47,317 INFO L78 Accepts]: Start accepts. Automaton has 37419 states and 46980 transitions. Word has length 92 [2025-03-08 06:16:47,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:47,318 INFO L471 AbstractCegarLoop]: Abstraction has 37419 states and 46980 transitions. [2025-03-08 06:16:47,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.380952380952381) internal successors, (239), 21 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:47,318 INFO L276 IsEmpty]: Start isEmpty. Operand 37419 states and 46980 transitions. [2025-03-08 06:16:47,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-08 06:16:47,321 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:47,322 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:47,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 06:16:47,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-03-08 06:16:47,526 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:47,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash 374253189, now seen corresponding path program 1 times [2025-03-08 06:16:47,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:47,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022614582] [2025-03-08 06:16:47,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:47,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:47,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 06:16:47,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 06:16:47,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:47,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:47,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022614582] [2025-03-08 06:16:47,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022614582] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:16:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082566612] [2025-03-08 06:16:47,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:47,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:16:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:16:47,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:16:47,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 06:16:47,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-08 06:16:47,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-08 06:16:47,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:47,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:47,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 06:16:47,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:16:47,979 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:47,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:16:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:48,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082566612] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:16:48,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:16:48,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2025-03-08 06:16:48,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438413643] [2025-03-08 06:16:48,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:16:48,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 06:16:48,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:48,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 06:16:48,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:16:48,088 INFO L87 Difference]: Start difference. First operand 37419 states and 46980 transitions. Second operand has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:48,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:48,465 INFO L93 Difference]: Finished difference Result 70446 states and 88409 transitions. [2025-03-08 06:16:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:16:48,465 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2025-03-08 06:16:48,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:48,502 INFO L225 Difference]: With dead ends: 70446 [2025-03-08 06:16:48,502 INFO L226 Difference]: Without dead ends: 33484 [2025-03-08 06:16:48,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:16:48,639 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 1890 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:48,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 923 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:16:48,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33484 states. [2025-03-08 06:16:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33484 to 33247. [2025-03-08 06:16:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33247 states, 33246 states have (on average 1.226012151837815) internal successors, (40760), 33246 states have internal predecessors, (40760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33247 states to 33247 states and 40760 transitions. [2025-03-08 06:16:48,911 INFO L78 Accepts]: Start accepts. Automaton has 33247 states and 40760 transitions. Word has length 93 [2025-03-08 06:16:48,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:48,911 INFO L471 AbstractCegarLoop]: Abstraction has 33247 states and 40760 transitions. [2025-03-08 06:16:48,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.785714285714285) internal successors, (249), 14 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:48,911 INFO L276 IsEmpty]: Start isEmpty. Operand 33247 states and 40760 transitions. [2025-03-08 06:16:48,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-08 06:16:48,916 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:48,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:48,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 06:16:49,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-08 06:16:49,116 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:49,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:49,117 INFO L85 PathProgramCache]: Analyzing trace with hash 575039696, now seen corresponding path program 1 times [2025-03-08 06:16:49,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:49,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080353651] [2025-03-08 06:16:49,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:49,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-08 06:16:49,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-08 06:16:49,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:49,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:49,183 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 06:16:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:49,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080353651] [2025-03-08 06:16:49,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080353651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:49,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:49,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:16:49,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79344662] [2025-03-08 06:16:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:49,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:49,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:49,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:49,185 INFO L87 Difference]: Start difference. First operand 33247 states and 40760 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 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) [2025-03-08 06:16:49,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:49,411 INFO L93 Difference]: Finished difference Result 40535 states and 49980 transitions. [2025-03-08 06:16:49,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 06:16:49,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 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 98 [2025-03-08 06:16:49,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:49,443 INFO L225 Difference]: With dead ends: 40535 [2025-03-08 06:16:49,443 INFO L226 Difference]: Without dead ends: 37221 [2025-03-08 06:16:49,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:49,448 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 474 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:49,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 742 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:16:49,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37221 states. [2025-03-08 06:16:49,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37221 to 36069. [2025-03-08 06:16:49,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36069 states, 36068 states have (on average 1.2256848175668182) internal successors, (44208), 36068 states have internal predecessors, (44208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:49,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36069 states to 36069 states and 44208 transitions. [2025-03-08 06:16:49,891 INFO L78 Accepts]: Start accepts. Automaton has 36069 states and 44208 transitions. Word has length 98 [2025-03-08 06:16:49,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:49,891 INFO L471 AbstractCegarLoop]: Abstraction has 36069 states and 44208 transitions. [2025-03-08 06:16:49,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 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) [2025-03-08 06:16:49,891 INFO L276 IsEmpty]: Start isEmpty. Operand 36069 states and 44208 transitions. [2025-03-08 06:16:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-08 06:16:49,897 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:49,897 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:49,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-08 06:16:49,897 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:49,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:49,898 INFO L85 PathProgramCache]: Analyzing trace with hash -906319804, now seen corresponding path program 1 times [2025-03-08 06:16:49,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:49,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471491511] [2025-03-08 06:16:49,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:49,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:49,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 06:16:49,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 06:16:49,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:49,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:49,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:49,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471491511] [2025-03-08 06:16:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471491511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:49,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:49,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 06:16:49,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326567846] [2025-03-08 06:16:49,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:49,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 06:16:49,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:49,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 06:16:49,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 06:16:49,979 INFO L87 Difference]: Start difference. First operand 36069 states and 44208 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:50,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:50,233 INFO L93 Difference]: Finished difference Result 72852 states and 89133 transitions. [2025-03-08 06:16:50,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 06:16:50,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2025-03-08 06:16:50,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:50,272 INFO L225 Difference]: With dead ends: 72852 [2025-03-08 06:16:50,272 INFO L226 Difference]: Without dead ends: 37282 [2025-03-08 06:16:50,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:50,297 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 425 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:50,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 426 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:16:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37282 states. [2025-03-08 06:16:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37282 to 34612. [2025-03-08 06:16:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34612 states, 34611 states have (on average 1.1998208661986074) internal successors, (41527), 34611 states have internal predecessors, (41527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34612 states to 34612 states and 41527 transitions. [2025-03-08 06:16:50,798 INFO L78 Accepts]: Start accepts. Automaton has 34612 states and 41527 transitions. Word has length 101 [2025-03-08 06:16:50,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:50,798 INFO L471 AbstractCegarLoop]: Abstraction has 34612 states and 41527 transitions. [2025-03-08 06:16:50,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:50,798 INFO L276 IsEmpty]: Start isEmpty. Operand 34612 states and 41527 transitions. [2025-03-08 06:16:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-08 06:16:50,802 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:50,802 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:50,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-03-08 06:16:50,803 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:50,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:50,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1986535013, now seen corresponding path program 1 times [2025-03-08 06:16:50,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:50,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708458604] [2025-03-08 06:16:50,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:50,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 06:16:50,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 06:16:50,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:50,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:50,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708458604] [2025-03-08 06:16:50,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708458604] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:16:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031013600] [2025-03-08 06:16:50,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:50,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:16:50,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:16:50,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:16:50,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 06:16:50,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 06:16:51,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 06:16:51,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:51,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:51,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 06:16:51,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:16:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:51,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:16:51,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:51,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031013600] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:16:51,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:16:51,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2025-03-08 06:16:51,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887107758] [2025-03-08 06:16:51,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:16:51,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 06:16:51,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:51,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 06:16:51,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:16:51,362 INFO L87 Difference]: Start difference. First operand 34612 states and 41527 transitions. Second operand has 14 states, 14 states have (on average 19.785714285714285) internal successors, (277), 14 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:51,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:51,721 INFO L93 Difference]: Finished difference Result 75290 states and 90677 transitions. [2025-03-08 06:16:51,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 06:16:51,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.785714285714285) internal successors, (277), 14 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2025-03-08 06:16:51,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:51,758 INFO L225 Difference]: With dead ends: 75290 [2025-03-08 06:16:51,758 INFO L226 Difference]: Without dead ends: 41177 [2025-03-08 06:16:51,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:16:51,781 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 1579 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:51,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 1008 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:16:51,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41177 states. [2025-03-08 06:16:52,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41177 to 36762. [2025-03-08 06:16:52,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36762 states, 36761 states have (on average 1.184951443105465) internal successors, (43560), 36761 states have internal predecessors, (43560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:52,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36762 states to 36762 states and 43560 transitions. [2025-03-08 06:16:52,310 INFO L78 Accepts]: Start accepts. Automaton has 36762 states and 43560 transitions. Word has length 101 [2025-03-08 06:16:52,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:52,310 INFO L471 AbstractCegarLoop]: Abstraction has 36762 states and 43560 transitions. [2025-03-08 06:16:52,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.785714285714285) internal successors, (277), 14 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:52,310 INFO L276 IsEmpty]: Start isEmpty. Operand 36762 states and 43560 transitions. [2025-03-08 06:16:52,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-08 06:16:52,315 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:52,316 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:52,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 06:16:52,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:16:52,518 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:52,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:52,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1555216910, now seen corresponding path program 1 times [2025-03-08 06:16:52,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:52,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578328561] [2025-03-08 06:16:52,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:52,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:52,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 06:16:52,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 06:16:52,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:52,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 06:16:52,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:52,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578328561] [2025-03-08 06:16:52,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578328561] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:16:52,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:16:52,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 06:16:52,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583618664] [2025-03-08 06:16:52,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:16:52,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 06:16:52,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:52,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 06:16:52,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 06:16:52,600 INFO L87 Difference]: Start difference. First operand 36762 states and 43560 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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) [2025-03-08 06:16:52,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:52,940 INFO L93 Difference]: Finished difference Result 52861 states and 62257 transitions. [2025-03-08 06:16:52,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 06:16:52,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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 103 [2025-03-08 06:16:52,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:52,977 INFO L225 Difference]: With dead ends: 52861 [2025-03-08 06:16:52,977 INFO L226 Difference]: Without dead ends: 41135 [2025-03-08 06:16:52,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:16:52,986 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 1043 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:52,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 449 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:16:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41135 states. [2025-03-08 06:16:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41135 to 36720. [2025-03-08 06:16:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36720 states, 36719 states have (on average 1.1849451237778807) internal successors, (43510), 36719 states have internal predecessors, (43510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36720 states to 36720 states and 43510 transitions. [2025-03-08 06:16:53,296 INFO L78 Accepts]: Start accepts. Automaton has 36720 states and 43510 transitions. Word has length 103 [2025-03-08 06:16:53,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:53,296 INFO L471 AbstractCegarLoop]: Abstraction has 36720 states and 43510 transitions. [2025-03-08 06:16:53,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 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) [2025-03-08 06:16:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 36720 states and 43510 transitions. [2025-03-08 06:16:53,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-08 06:16:53,301 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:53,301 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:53,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-03-08 06:16:53,301 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:53,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:53,302 INFO L85 PathProgramCache]: Analyzing trace with hash -717560177, now seen corresponding path program 1 times [2025-03-08 06:16:53,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:53,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009528851] [2025-03-08 06:16:53,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:53,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:53,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-08 06:16:53,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-08 06:16:53,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:53,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:53,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:53,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009528851] [2025-03-08 06:16:53,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009528851] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:16:53,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562700291] [2025-03-08 06:16:53,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:53,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:16:53,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:16:53,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:16:53,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 06:16:53,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-08 06:16:53,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-08 06:16:53,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:53,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:53,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-08 06:16:53,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:16:54,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:54,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:16:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:55,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562700291] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:16:55,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:16:55,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 13] total 30 [2025-03-08 06:16:55,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282194726] [2025-03-08 06:16:55,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:16:55,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-08 06:16:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:16:55,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-08 06:16:55,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=733, Unknown=0, NotChecked=0, Total=870 [2025-03-08 06:16:55,554 INFO L87 Difference]: Start difference. First operand 36720 states and 43510 transitions. Second operand has 30 states, 30 states have (on average 8.4) internal successors, (252), 30 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:16:57,488 INFO L93 Difference]: Finished difference Result 117345 states and 139511 transitions. [2025-03-08 06:16:57,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-08 06:16:57,488 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.4) internal successors, (252), 30 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2025-03-08 06:16:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:16:57,594 INFO L225 Difference]: With dead ends: 117345 [2025-03-08 06:16:57,594 INFO L226 Difference]: Without dead ends: 88492 [2025-03-08 06:16:57,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=819, Invalid=2841, Unknown=0, NotChecked=0, Total=3660 [2025-03-08 06:16:57,634 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 3463 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 2115 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3463 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-08 06:16:57,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3463 Valid, 3157 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2115 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-08 06:16:57,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88492 states. [2025-03-08 06:16:58,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88492 to 37247. [2025-03-08 06:16:58,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37247 states, 37246 states have (on average 1.184664125006712) internal successors, (44124), 37246 states have internal predecessors, (44124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:58,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37247 states to 37247 states and 44124 transitions. [2025-03-08 06:16:58,203 INFO L78 Accepts]: Start accepts. Automaton has 37247 states and 44124 transitions. Word has length 104 [2025-03-08 06:16:58,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:16:58,204 INFO L471 AbstractCegarLoop]: Abstraction has 37247 states and 44124 transitions. [2025-03-08 06:16:58,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.4) internal successors, (252), 30 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:16:58,204 INFO L276 IsEmpty]: Start isEmpty. Operand 37247 states and 44124 transitions. [2025-03-08 06:16:58,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 06:16:58,208 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:16:58,209 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:16:58,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-08 06:16:58,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-08 06:16:58,409 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:16:58,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:16:58,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1836246781, now seen corresponding path program 1 times [2025-03-08 06:16:58,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:16:58,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559624421] [2025-03-08 06:16:58,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:58,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:16:58,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 06:16:58,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 06:16:58,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:58,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:58,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:16:58,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559624421] [2025-03-08 06:16:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559624421] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:16:58,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495527326] [2025-03-08 06:16:58,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:16:58,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:16:58,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:16:58,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:16:58,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 06:16:58,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 06:16:58,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 06:16:58,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:16:58,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:16:58,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-08 06:16:58,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:16:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:16:59,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:17:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:00,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495527326] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:17:00,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:17:00,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 11] total 30 [2025-03-08 06:17:00,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350168020] [2025-03-08 06:17:00,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:17:00,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-08 06:17:00,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:00,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-08 06:17:00,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2025-03-08 06:17:00,076 INFO L87 Difference]: Start difference. First operand 37247 states and 44124 transitions. Second operand has 30 states, 30 states have (on average 8.966666666666667) internal successors, (269), 30 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:01,907 INFO L93 Difference]: Finished difference Result 107981 states and 127017 transitions. [2025-03-08 06:17:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-08 06:17:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.966666666666667) internal successors, (269), 30 states have internal predecessors, (269), 0 states have call successors, (0), 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 105 [2025-03-08 06:17:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:02,003 INFO L225 Difference]: With dead ends: 107981 [2025-03-08 06:17:02,003 INFO L226 Difference]: Without dead ends: 91065 [2025-03-08 06:17:02,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=720, Invalid=2940, Unknown=0, NotChecked=0, Total=3660 [2025-03-08 06:17:02,035 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 1829 mSDsluCounter, 3535 mSDsCounter, 0 mSdLazyCounter, 2980 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 3025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:02,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 3744 Invalid, 3025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 06:17:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91065 states. [2025-03-08 06:17:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91065 to 50117. [2025-03-08 06:17:02,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50117 states, 50116 states have (on average 1.181917950355176) internal successors, (59233), 50116 states have internal predecessors, (59233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50117 states to 50117 states and 59233 transitions. [2025-03-08 06:17:02,702 INFO L78 Accepts]: Start accepts. Automaton has 50117 states and 59233 transitions. Word has length 105 [2025-03-08 06:17:02,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:02,702 INFO L471 AbstractCegarLoop]: Abstraction has 50117 states and 59233 transitions. [2025-03-08 06:17:02,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.966666666666667) internal successors, (269), 30 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 50117 states and 59233 transitions. [2025-03-08 06:17:02,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 06:17:02,707 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:02,707 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:02,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 06:17:02,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-08 06:17:02,907 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:02,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:02,908 INFO L85 PathProgramCache]: Analyzing trace with hash -57821069, now seen corresponding path program 1 times [2025-03-08 06:17:02,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:02,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881129910] [2025-03-08 06:17:02,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:02,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:02,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 06:17:02,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 06:17:02,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:02,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:03,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:03,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881129910] [2025-03-08 06:17:03,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881129910] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:03,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:03,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 06:17:03,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124157513] [2025-03-08 06:17:03,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:03,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 06:17:03,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:03,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 06:17:03,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 06:17:03,119 INFO L87 Difference]: Start difference. First operand 50117 states and 59233 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:03,698 INFO L93 Difference]: Finished difference Result 103559 states and 122191 transitions. [2025-03-08 06:17:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 06:17:03,698 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2025-03-08 06:17:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:03,786 INFO L225 Difference]: With dead ends: 103559 [2025-03-08 06:17:03,786 INFO L226 Difference]: Without dead ends: 81749 [2025-03-08 06:17:03,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2025-03-08 06:17:03,819 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 1033 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:03,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1125 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:17:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81749 states. [2025-03-08 06:17:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81749 to 75598. [2025-03-08 06:17:04,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75598 states, 75597 states have (on average 1.1821368572826965) internal successors, (89366), 75597 states have internal predecessors, (89366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:04,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75598 states to 75598 states and 89366 transitions. [2025-03-08 06:17:04,756 INFO L78 Accepts]: Start accepts. Automaton has 75598 states and 89366 transitions. Word has length 105 [2025-03-08 06:17:04,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:04,757 INFO L471 AbstractCegarLoop]: Abstraction has 75598 states and 89366 transitions. [2025-03-08 06:17:04,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 9 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:04,757 INFO L276 IsEmpty]: Start isEmpty. Operand 75598 states and 89366 transitions. [2025-03-08 06:17:04,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 06:17:04,763 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:04,763 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:04,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-03-08 06:17:04,764 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:04,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:04,764 INFO L85 PathProgramCache]: Analyzing trace with hash 441649640, now seen corresponding path program 1 times [2025-03-08 06:17:04,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:04,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331999215] [2025-03-08 06:17:04,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:04,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 06:17:04,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 06:17:04,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:04,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:04,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:04,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331999215] [2025-03-08 06:17:04,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331999215] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:04,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:04,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:17:04,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325808835] [2025-03-08 06:17:04,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:04,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:17:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:04,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:17:04,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:17:04,814 INFO L87 Difference]: Start difference. First operand 75598 states and 89366 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:05,017 INFO L93 Difference]: Finished difference Result 103478 states and 122132 transitions. [2025-03-08 06:17:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:17:05,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2025-03-08 06:17:05,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:05,094 INFO L225 Difference]: With dead ends: 103478 [2025-03-08 06:17:05,094 INFO L226 Difference]: Without dead ends: 79857 [2025-03-08 06:17:05,124 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 [2025-03-08 06:17:05,124 INFO L435 NwaCegarLoop]: 312 mSDtfsCounter, 69 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:05,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 506 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:17:05,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79857 states. [2025-03-08 06:17:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79857 to 79574. [2025-03-08 06:17:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79574 states, 79573 states have (on average 1.1792065147725987) internal successors, (93833), 79573 states have internal predecessors, (93833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79574 states to 79574 states and 93833 transitions. [2025-03-08 06:17:05,814 INFO L78 Accepts]: Start accepts. Automaton has 79574 states and 93833 transitions. Word has length 106 [2025-03-08 06:17:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:05,814 INFO L471 AbstractCegarLoop]: Abstraction has 79574 states and 93833 transitions. [2025-03-08 06:17:05,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 79574 states and 93833 transitions. [2025-03-08 06:17:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 06:17:05,820 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:05,820 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:05,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-03-08 06:17:05,820 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:05,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:05,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1538195115, now seen corresponding path program 1 times [2025-03-08 06:17:05,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:05,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932030843] [2025-03-08 06:17:05,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:05,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 06:17:05,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 06:17:05,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:05,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:05,967 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 06:17:05,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:05,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932030843] [2025-03-08 06:17:05,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932030843] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:05,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:05,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 06:17:05,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552792882] [2025-03-08 06:17:05,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:05,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 06:17:05,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:05,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 06:17:05,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 06:17:05,969 INFO L87 Difference]: Start difference. First operand 79574 states and 93833 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:06,587 INFO L93 Difference]: Finished difference Result 203965 states and 241181 transitions. [2025-03-08 06:17:06,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 06:17:06,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2025-03-08 06:17:06,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:06,729 INFO L225 Difference]: With dead ends: 203965 [2025-03-08 06:17:06,729 INFO L226 Difference]: Without dead ends: 140401 [2025-03-08 06:17:06,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2025-03-08 06:17:06,782 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 1204 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:06,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 719 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:17:06,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140401 states. [2025-03-08 06:17:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140401 to 79512. [2025-03-08 06:17:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79512 states, 79511 states have (on average 1.1792707927205042) internal successors, (93765), 79511 states have internal predecessors, (93765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:07,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79512 states to 79512 states and 93765 transitions. [2025-03-08 06:17:07,773 INFO L78 Accepts]: Start accepts. Automaton has 79512 states and 93765 transitions. Word has length 106 [2025-03-08 06:17:07,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:07,774 INFO L471 AbstractCegarLoop]: Abstraction has 79512 states and 93765 transitions. [2025-03-08 06:17:07,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:07,774 INFO L276 IsEmpty]: Start isEmpty. Operand 79512 states and 93765 transitions. [2025-03-08 06:17:07,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-08 06:17:07,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:07,780 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:07,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-03-08 06:17:07,780 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:07,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:07,781 INFO L85 PathProgramCache]: Analyzing trace with hash -622248150, now seen corresponding path program 1 times [2025-03-08 06:17:07,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:07,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977393447] [2025-03-08 06:17:07,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:07,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:07,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 06:17:07,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 06:17:07,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:07,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:08,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:08,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977393447] [2025-03-08 06:17:08,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977393447] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:08,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:08,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-08 06:17:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806713423] [2025-03-08 06:17:08,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:08,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-08 06:17:08,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:08,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-08 06:17:08,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2025-03-08 06:17:08,112 INFO L87 Difference]: Start difference. First operand 79512 states and 93765 transitions. Second operand has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:08,637 INFO L93 Difference]: Finished difference Result 106665 states and 126107 transitions. [2025-03-08 06:17:08,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 06:17:08,638 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2025-03-08 06:17:08,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:08,727 INFO L225 Difference]: With dead ends: 106665 [2025-03-08 06:17:08,727 INFO L226 Difference]: Without dead ends: 92209 [2025-03-08 06:17:08,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2025-03-08 06:17:08,757 INFO L435 NwaCegarLoop]: 331 mSDtfsCounter, 852 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:08,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2613 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:17:08,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92209 states. [2025-03-08 06:17:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92209 to 87544. [2025-03-08 06:17:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87544 states, 87543 states have (on average 1.1809282295557613) internal successors, (103382), 87543 states have internal predecessors, (103382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87544 states to 87544 states and 103382 transitions. [2025-03-08 06:17:09,696 INFO L78 Accepts]: Start accepts. Automaton has 87544 states and 103382 transitions. Word has length 107 [2025-03-08 06:17:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:09,696 INFO L471 AbstractCegarLoop]: Abstraction has 87544 states and 103382 transitions. [2025-03-08 06:17:09,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.642857142857143) internal successors, (107), 14 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 87544 states and 103382 transitions. [2025-03-08 06:17:09,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 06:17:09,704 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:09,704 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:09,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2025-03-08 06:17:09,704 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:09,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1761911214, now seen corresponding path program 1 times [2025-03-08 06:17:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:09,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129738213] [2025-03-08 06:17:09,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:09,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:09,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 06:17:09,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 06:17:09,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:09,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:09,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:09,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129738213] [2025-03-08 06:17:09,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129738213] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:09,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561558400] [2025-03-08 06:17:09,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:09,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:09,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:09,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:09,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 06:17:10,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 06:17:10,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 06:17:10,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:10,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:10,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-08 06:17:10,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:10,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:17:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:11,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561558400] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:17:11,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:17:11,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2025-03-08 06:17:11,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006011097] [2025-03-08 06:17:11,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:17:11,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-08 06:17:11,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:11,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-08 06:17:11,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=632, Unknown=0, NotChecked=0, Total=756 [2025-03-08 06:17:11,464 INFO L87 Difference]: Start difference. First operand 87544 states and 103382 transitions. Second operand has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:12,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:12,582 INFO L93 Difference]: Finished difference Result 129527 states and 153063 transitions. [2025-03-08 06:17:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 06:17:12,583 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2025-03-08 06:17:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:12,709 INFO L225 Difference]: With dead ends: 129527 [2025-03-08 06:17:12,709 INFO L226 Difference]: Without dead ends: 109683 [2025-03-08 06:17:12,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=432, Invalid=1460, Unknown=0, NotChecked=0, Total=1892 [2025-03-08 06:17:12,740 INFO L435 NwaCegarLoop]: 236 mSDtfsCounter, 1311 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 1824 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:12,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1311 Valid, 2498 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1824 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 06:17:12,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109683 states. [2025-03-08 06:17:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109683 to 87286. [2025-03-08 06:17:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87286 states, 87285 states have (on average 1.1810964083175803) internal successors, (103092), 87285 states have internal predecessors, (103092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87286 states to 87286 states and 103092 transitions. [2025-03-08 06:17:13,954 INFO L78 Accepts]: Start accepts. Automaton has 87286 states and 103092 transitions. Word has length 108 [2025-03-08 06:17:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:13,954 INFO L471 AbstractCegarLoop]: Abstraction has 87286 states and 103092 transitions. [2025-03-08 06:17:13,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 87286 states and 103092 transitions. [2025-03-08 06:17:13,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 06:17:13,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:13,960 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:13,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 06:17:14,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:14,161 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:14,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1769265746, now seen corresponding path program 1 times [2025-03-08 06:17:14,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:14,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626911846] [2025-03-08 06:17:14,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:14,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:14,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 06:17:14,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 06:17:14,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:14,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:14,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:14,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626911846] [2025-03-08 06:17:14,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626911846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:14,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:14,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 06:17:14,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483527707] [2025-03-08 06:17:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:14,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 06:17:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:14,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 06:17:14,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 06:17:14,253 INFO L87 Difference]: Start difference. First operand 87286 states and 103092 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:14,541 INFO L93 Difference]: Finished difference Result 127931 states and 150604 transitions. [2025-03-08 06:17:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 06:17:14,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2025-03-08 06:17:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:14,591 INFO L225 Difference]: With dead ends: 127931 [2025-03-08 06:17:14,591 INFO L226 Difference]: Without dead ends: 41661 [2025-03-08 06:17:14,640 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 [2025-03-08 06:17:14,640 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 107 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:14,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 396 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 06:17:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41661 states. [2025-03-08 06:17:15,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41661 to 33528. [2025-03-08 06:17:15,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33528 states, 33527 states have (on average 1.1714737375846334) internal successors, (39276), 33527 states have internal predecessors, (39276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:15,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33528 states to 33528 states and 39276 transitions. [2025-03-08 06:17:15,070 INFO L78 Accepts]: Start accepts. Automaton has 33528 states and 39276 transitions. Word has length 108 [2025-03-08 06:17:15,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:15,070 INFO L471 AbstractCegarLoop]: Abstraction has 33528 states and 39276 transitions. [2025-03-08 06:17:15,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:15,071 INFO L276 IsEmpty]: Start isEmpty. Operand 33528 states and 39276 transitions. [2025-03-08 06:17:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 06:17:15,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:15,075 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:15,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2025-03-08 06:17:15,075 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:15,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:15,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1528075025, now seen corresponding path program 1 times [2025-03-08 06:17:15,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:15,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808008370] [2025-03-08 06:17:15,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:15,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:15,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 06:17:15,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 06:17:15,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:15,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 06:17:15,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808008370] [2025-03-08 06:17:15,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808008370] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:15,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:15,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 06:17:15,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507412519] [2025-03-08 06:17:15,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:15,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 06:17:15,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:15,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 06:17:15,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-08 06:17:15,446 INFO L87 Difference]: Start difference. First operand 33528 states and 39276 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:15,735 INFO L93 Difference]: Finished difference Result 38795 states and 45438 transitions. [2025-03-08 06:17:15,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 06:17:15,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2025-03-08 06:17:15,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:15,768 INFO L225 Difference]: With dead ends: 38795 [2025-03-08 06:17:15,768 INFO L226 Difference]: Without dead ends: 32169 [2025-03-08 06:17:15,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2025-03-08 06:17:15,780 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 1191 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:15,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 1004 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 06:17:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32169 states. [2025-03-08 06:17:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32169 to 29984. [2025-03-08 06:17:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29984 states, 29983 states have (on average 1.1696294566921255) internal successors, (35069), 29983 states have internal predecessors, (35069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29984 states to 29984 states and 35069 transitions. [2025-03-08 06:17:16,093 INFO L78 Accepts]: Start accepts. Automaton has 29984 states and 35069 transitions. Word has length 108 [2025-03-08 06:17:16,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:16,093 INFO L471 AbstractCegarLoop]: Abstraction has 29984 states and 35069 transitions. [2025-03-08 06:17:16,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 29984 states and 35069 transitions. [2025-03-08 06:17:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 06:17:16,096 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:16,096 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:16,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2025-03-08 06:17:16,096 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:16,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:16,096 INFO L85 PathProgramCache]: Analyzing trace with hash 766207462, now seen corresponding path program 1 times [2025-03-08 06:17:16,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:16,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146203599] [2025-03-08 06:17:16,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:16,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:16,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 06:17:16,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 06:17:16,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:16,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:16,388 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:16,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:16,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146203599] [2025-03-08 06:17:16,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146203599] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:16,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112055863] [2025-03-08 06:17:16,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:16,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:16,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:16,391 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:16,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 06:17:16,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 06:17:16,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 06:17:16,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:16,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:16,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 06:17:16,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:17,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:17,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:17:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:17,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112055863] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:17:17,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:17:17,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 10] total 34 [2025-03-08 06:17:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425861186] [2025-03-08 06:17:17,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:17:17,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-08 06:17:17,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:17,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-08 06:17:17,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1014, Unknown=0, NotChecked=0, Total=1122 [2025-03-08 06:17:17,410 INFO L87 Difference]: Start difference. First operand 29984 states and 35069 transitions. Second operand has 34 states, 34 states have (on average 8.823529411764707) internal successors, (300), 34 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:18,376 INFO L93 Difference]: Finished difference Result 97829 states and 114780 transitions. [2025-03-08 06:17:18,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-08 06:17:18,377 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.823529411764707) internal successors, (300), 34 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2025-03-08 06:17:18,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:18,466 INFO L225 Difference]: With dead ends: 97829 [2025-03-08 06:17:18,466 INFO L226 Difference]: Without dead ends: 83581 [2025-03-08 06:17:18,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=485, Invalid=2595, Unknown=0, NotChecked=0, Total=3080 [2025-03-08 06:17:18,497 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 2225 mSDsluCounter, 5314 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:18,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 5664 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 06:17:18,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83581 states. [2025-03-08 06:17:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83581 to 30230. [2025-03-08 06:17:19,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30230 states, 30229 states have (on average 1.169076052796983) internal successors, (35340), 30229 states have internal predecessors, (35340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30230 states to 30230 states and 35340 transitions. [2025-03-08 06:17:19,059 INFO L78 Accepts]: Start accepts. Automaton has 30230 states and 35340 transitions. Word has length 109 [2025-03-08 06:17:19,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:19,059 INFO L471 AbstractCegarLoop]: Abstraction has 30230 states and 35340 transitions. [2025-03-08 06:17:19,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.823529411764707) internal successors, (300), 34 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 30230 states and 35340 transitions. [2025-03-08 06:17:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 06:17:19,062 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:19,062 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:19,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-08 06:17:19,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:19,263 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:19,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2075215197, now seen corresponding path program 1 times [2025-03-08 06:17:19,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:19,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616663897] [2025-03-08 06:17:19,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:19,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 06:17:19,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 06:17:19,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:19,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:19,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:19,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616663897] [2025-03-08 06:17:19,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616663897] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:19,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:19,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-08 06:17:19,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587480635] [2025-03-08 06:17:19,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:19,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 06:17:19,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:19,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 06:17:19,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:17:19,522 INFO L87 Difference]: Start difference. First operand 30230 states and 35340 transitions. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:19,839 INFO L93 Difference]: Finished difference Result 43732 states and 51198 transitions. [2025-03-08 06:17:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-08 06:17:19,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2025-03-08 06:17:19,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:19,874 INFO L225 Difference]: With dead ends: 43732 [2025-03-08 06:17:19,874 INFO L226 Difference]: Without dead ends: 37503 [2025-03-08 06:17:19,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2025-03-08 06:17:19,886 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 304 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:19,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 3249 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:17:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37503 states. [2025-03-08 06:17:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37503 to 35084. [2025-03-08 06:17:20,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35084 states, 35083 states have (on average 1.1689707265627227) internal successors, (41011), 35083 states have internal predecessors, (41011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:20,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35084 states to 35084 states and 41011 transitions. [2025-03-08 06:17:20,275 INFO L78 Accepts]: Start accepts. Automaton has 35084 states and 41011 transitions. Word has length 109 [2025-03-08 06:17:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:20,275 INFO L471 AbstractCegarLoop]: Abstraction has 35084 states and 41011 transitions. [2025-03-08 06:17:20,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 35084 states and 41011 transitions. [2025-03-08 06:17:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-08 06:17:20,279 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:20,279 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:20,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2025-03-08 06:17:20,279 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:20,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1148961187, now seen corresponding path program 1 times [2025-03-08 06:17:20,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:20,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706263616] [2025-03-08 06:17:20,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:20,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:20,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 06:17:20,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 06:17:20,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:20,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:20,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:20,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706263616] [2025-03-08 06:17:20,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706263616] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:20,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882555036] [2025-03-08 06:17:20,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:20,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:20,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:20,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:20,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 06:17:20,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 06:17:20,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 06:17:20,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:20,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:20,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-08 06:17:20,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:21,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:17:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:22,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882555036] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:17:22,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:17:22,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 15] total 41 [2025-03-08 06:17:22,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144138751] [2025-03-08 06:17:22,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:17:22,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-08 06:17:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:22,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-08 06:17:22,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1491, Unknown=0, NotChecked=0, Total=1640 [2025-03-08 06:17:22,411 INFO L87 Difference]: Start difference. First operand 35084 states and 41011 transitions. Second operand has 41 states, 41 states have (on average 7.390243902439025) internal successors, (303), 41 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:24,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:24,186 INFO L93 Difference]: Finished difference Result 96404 states and 112644 transitions. [2025-03-08 06:17:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-03-08 06:17:24,186 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 7.390243902439025) internal successors, (303), 41 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2025-03-08 06:17:24,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:24,275 INFO L225 Difference]: With dead ends: 96404 [2025-03-08 06:17:24,275 INFO L226 Difference]: Without dead ends: 85875 [2025-03-08 06:17:24,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1049 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=790, Invalid=4612, Unknown=0, NotChecked=0, Total=5402 [2025-03-08 06:17:24,304 INFO L435 NwaCegarLoop]: 409 mSDtfsCounter, 3758 mSDsluCounter, 8628 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3758 SdHoareTripleChecker+Valid, 9037 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:24,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3758 Valid, 9037 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 06:17:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85875 states. [2025-03-08 06:17:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85875 to 35068. [2025-03-08 06:17:24,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35068 states, 35067 states have (on average 1.1684489691162632) internal successors, (40974), 35067 states have internal predecessors, (40974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35068 states to 35068 states and 40974 transitions. [2025-03-08 06:17:24,847 INFO L78 Accepts]: Start accepts. Automaton has 35068 states and 40974 transitions. Word has length 110 [2025-03-08 06:17:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:24,848 INFO L471 AbstractCegarLoop]: Abstraction has 35068 states and 40974 transitions. [2025-03-08 06:17:24,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.390243902439025) internal successors, (303), 41 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 35068 states and 40974 transitions. [2025-03-08 06:17:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-08 06:17:24,851 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:24,851 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:24,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-08 06:17:25,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2025-03-08 06:17:25,051 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:25,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:25,052 INFO L85 PathProgramCache]: Analyzing trace with hash -67829272, now seen corresponding path program 1 times [2025-03-08 06:17:25,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:25,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987684514] [2025-03-08 06:17:25,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:25,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 06:17:25,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 06:17:25,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:25,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:25,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:25,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987684514] [2025-03-08 06:17:25,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987684514] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:25,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:25,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-08 06:17:25,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47627737] [2025-03-08 06:17:25,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:25,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-08 06:17:25,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:25,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-08 06:17:25,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-03-08 06:17:25,342 INFO L87 Difference]: Start difference. First operand 35068 states and 40974 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:25,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:25,772 INFO L93 Difference]: Finished difference Result 41234 states and 48166 transitions. [2025-03-08 06:17:25,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-08 06:17:25,773 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2025-03-08 06:17:25,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:25,805 INFO L225 Difference]: With dead ends: 41234 [2025-03-08 06:17:25,805 INFO L226 Difference]: Without dead ends: 34991 [2025-03-08 06:17:25,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2025-03-08 06:17:25,817 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 659 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:25,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2755 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 06:17:25,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34991 states. [2025-03-08 06:17:26,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34991 to 27864. [2025-03-08 06:17:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27864 states, 27863 states have (on average 1.164985823493522) internal successors, (32460), 27863 states have internal predecessors, (32460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27864 states to 27864 states and 32460 transitions. [2025-03-08 06:17:26,057 INFO L78 Accepts]: Start accepts. Automaton has 27864 states and 32460 transitions. Word has length 110 [2025-03-08 06:17:26,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:26,057 INFO L471 AbstractCegarLoop]: Abstraction has 27864 states and 32460 transitions. [2025-03-08 06:17:26,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 15 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27864 states and 32460 transitions. [2025-03-08 06:17:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-08 06:17:26,060 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:26,060 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:26,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2025-03-08 06:17:26,060 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:26,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1046077170, now seen corresponding path program 1 times [2025-03-08 06:17:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978409928] [2025-03-08 06:17:26,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:26,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:26,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-08 06:17:26,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-08 06:17:26,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:26,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:26,340 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 06:17:26,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:26,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978409928] [2025-03-08 06:17:26,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978409928] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:26,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:26,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-08 06:17:26,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286030458] [2025-03-08 06:17:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:26,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-08 06:17:26,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:26,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-08 06:17:26,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-08 06:17:26,341 INFO L87 Difference]: Start difference. First operand 27864 states and 32460 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:26,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:26,917 INFO L93 Difference]: Finished difference Result 51238 states and 59359 transitions. [2025-03-08 06:17:26,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-08 06:17:26,917 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2025-03-08 06:17:26,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:26,952 INFO L225 Difference]: With dead ends: 51238 [2025-03-08 06:17:26,952 INFO L226 Difference]: Without dead ends: 37755 [2025-03-08 06:17:26,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=719, Unknown=0, NotChecked=0, Total=992 [2025-03-08 06:17:26,968 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 2635 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:26,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 935 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 06:17:26,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37755 states. [2025-03-08 06:17:27,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37755 to 27836. [2025-03-08 06:17:27,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27836 states, 27835 states have (on average 1.1650440093407581) internal successors, (32429), 27835 states have internal predecessors, (32429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27836 states to 27836 states and 32429 transitions. [2025-03-08 06:17:27,224 INFO L78 Accepts]: Start accepts. Automaton has 27836 states and 32429 transitions. Word has length 112 [2025-03-08 06:17:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:27,224 INFO L471 AbstractCegarLoop]: Abstraction has 27836 states and 32429 transitions. [2025-03-08 06:17:27,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 27836 states and 32429 transitions. [2025-03-08 06:17:27,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-08 06:17:27,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:27,227 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:27,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2025-03-08 06:17:27,227 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:27,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash -369903530, now seen corresponding path program 1 times [2025-03-08 06:17:27,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:27,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692452371] [2025-03-08 06:17:27,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:27,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:27,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 06:17:27,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 06:17:27,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:27,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:27,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:27,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692452371] [2025-03-08 06:17:27,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692452371] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:27,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 06:17:27,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-08 06:17:27,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613703567] [2025-03-08 06:17:27,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:27,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-08 06:17:27,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:27,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-08 06:17:27,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-08 06:17:27,538 INFO L87 Difference]: Start difference. First operand 27836 states and 32429 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 14 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:28,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:28,467 INFO L93 Difference]: Finished difference Result 46166 states and 53737 transitions. [2025-03-08 06:17:28,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-08 06:17:28,468 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 14 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2025-03-08 06:17:28,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:28,509 INFO L225 Difference]: With dead ends: 46166 [2025-03-08 06:17:28,510 INFO L226 Difference]: Without dead ends: 41583 [2025-03-08 06:17:28,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2025-03-08 06:17:28,523 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 1459 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:28,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1474 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:17:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41583 states. [2025-03-08 06:17:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41583 to 31545. [2025-03-08 06:17:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31545 states, 31544 states have (on average 1.1660537661678925) internal successors, (36782), 31544 states have internal predecessors, (36782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:28,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31545 states to 31545 states and 36782 transitions. [2025-03-08 06:17:28,827 INFO L78 Accepts]: Start accepts. Automaton has 31545 states and 36782 transitions. Word has length 113 [2025-03-08 06:17:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:28,827 INFO L471 AbstractCegarLoop]: Abstraction has 31545 states and 36782 transitions. [2025-03-08 06:17:28,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 14 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 31545 states and 36782 transitions. [2025-03-08 06:17:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-08 06:17:28,830 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:28,830 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:28,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2025-03-08 06:17:28,830 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:28,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:28,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1348571625, now seen corresponding path program 1 times [2025-03-08 06:17:28,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:28,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275707649] [2025-03-08 06:17:28,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:28,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:28,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 06:17:28,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 06:17:28,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:28,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:29,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:29,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275707649] [2025-03-08 06:17:29,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275707649] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:29,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213721343] [2025-03-08 06:17:29,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:29,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:29,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:29,249 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:29,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 06:17:29,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 06:17:29,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 06:17:29,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:29,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:29,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-03-08 06:17:29,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 06:17:30,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:17:30,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213721343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:30,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:17:30,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [17] total 32 [2025-03-08 06:17:30,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725043073] [2025-03-08 06:17:30,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:30,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-08 06:17:30,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:30,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-08 06:17:30,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=874, Unknown=0, NotChecked=0, Total=992 [2025-03-08 06:17:30,342 INFO L87 Difference]: Start difference. First operand 31545 states and 36782 transitions. Second operand has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:30,919 INFO L93 Difference]: Finished difference Result 44436 states and 51769 transitions. [2025-03-08 06:17:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-08 06:17:30,920 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2025-03-08 06:17:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:30,959 INFO L225 Difference]: With dead ends: 44436 [2025-03-08 06:17:30,959 INFO L226 Difference]: Without dead ends: 41275 [2025-03-08 06:17:30,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=199, Invalid=1207, Unknown=0, NotChecked=0, Total=1406 [2025-03-08 06:17:30,974 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 980 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:30,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 1733 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 06:17:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41275 states. [2025-03-08 06:17:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41275 to 31481. [2025-03-08 06:17:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31481 states, 31480 states have (on average 1.1660736975857688) internal successors, (36708), 31480 states have internal predecessors, (36708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31481 states to 31481 states and 36708 transitions. [2025-03-08 06:17:31,280 INFO L78 Accepts]: Start accepts. Automaton has 31481 states and 36708 transitions. Word has length 113 [2025-03-08 06:17:31,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:31,280 INFO L471 AbstractCegarLoop]: Abstraction has 31481 states and 36708 transitions. [2025-03-08 06:17:31,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:31,281 INFO L276 IsEmpty]: Start isEmpty. Operand 31481 states and 36708 transitions. [2025-03-08 06:17:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 06:17:31,283 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:31,283 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:31,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-08 06:17:31,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:31,484 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:31,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:31,484 INFO L85 PathProgramCache]: Analyzing trace with hash 521543693, now seen corresponding path program 1 times [2025-03-08 06:17:31,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:31,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404039410] [2025-03-08 06:17:31,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:31,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:31,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 06:17:31,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 06:17:31,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:31,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:31,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:31,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404039410] [2025-03-08 06:17:31,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404039410] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:31,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952960776] [2025-03-08 06:17:31,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:31,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:31,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:31,880 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:31,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 06:17:32,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 06:17:32,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 06:17:32,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:32,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:32,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-08 06:17:32,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:32,883 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:32,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:17:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:34,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952960776] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:17:34,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:17:34,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 17] total 44 [2025-03-08 06:17:34,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93000346] [2025-03-08 06:17:34,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:17:34,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-03-08 06:17:34,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:34,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-03-08 06:17:34,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=1720, Unknown=0, NotChecked=0, Total=1892 [2025-03-08 06:17:34,371 INFO L87 Difference]: Start difference. First operand 31481 states and 36708 transitions. Second operand has 44 states, 44 states have (on average 6.704545454545454) internal successors, (295), 44 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:36,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:36,492 INFO L93 Difference]: Finished difference Result 128926 states and 150957 transitions. [2025-03-08 06:17:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-08 06:17:36,492 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 6.704545454545454) internal successors, (295), 44 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2025-03-08 06:17:36,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:36,616 INFO L225 Difference]: With dead ends: 128926 [2025-03-08 06:17:36,617 INFO L226 Difference]: Without dead ends: 118311 [2025-03-08 06:17:36,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=610, Invalid=4220, Unknown=0, NotChecked=0, Total=4830 [2025-03-08 06:17:36,648 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 2030 mSDsluCounter, 9285 mSDsCounter, 0 mSdLazyCounter, 2640 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 9740 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:36,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 9740 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2640 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 06:17:36,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118311 states. [2025-03-08 06:17:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118311 to 31488. [2025-03-08 06:17:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31488 states, 31487 states have (on average 1.1660685362212977) internal successors, (36716), 31487 states have internal predecessors, (36716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:37,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31488 states to 31488 states and 36716 transitions. [2025-03-08 06:17:37,294 INFO L78 Accepts]: Start accepts. Automaton has 31488 states and 36716 transitions. Word has length 115 [2025-03-08 06:17:37,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:37,294 INFO L471 AbstractCegarLoop]: Abstraction has 31488 states and 36716 transitions. [2025-03-08 06:17:37,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 6.704545454545454) internal successors, (295), 44 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:37,294 INFO L276 IsEmpty]: Start isEmpty. Operand 31488 states and 36716 transitions. [2025-03-08 06:17:37,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 06:17:37,297 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:37,297 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:37,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 06:17:37,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2025-03-08 06:17:37,498 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:37,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1919220627, now seen corresponding path program 1 times [2025-03-08 06:17:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:37,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517589] [2025-03-08 06:17:37,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:37,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:37,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 06:17:37,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 06:17:37,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:37,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517589] [2025-03-08 06:17:38,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517589] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686224780] [2025-03-08 06:17:38,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:38,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:38,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:38,019 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:38,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 06:17:38,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 06:17:38,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 06:17:38,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:38,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:38,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-03-08 06:17:38,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:39,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 06:17:39,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686224780] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 06:17:39,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 06:17:39,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [18] total 40 [2025-03-08 06:17:39,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55419811] [2025-03-08 06:17:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 06:17:39,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-08 06:17:39,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:39,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-08 06:17:39,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1393, Unknown=0, NotChecked=0, Total=1560 [2025-03-08 06:17:39,664 INFO L87 Difference]: Start difference. First operand 31488 states and 36716 transitions. Second operand has 25 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:41,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 06:17:41,204 INFO L93 Difference]: Finished difference Result 68274 states and 79663 transitions. [2025-03-08 06:17:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-08 06:17:41,204 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2025-03-08 06:17:41,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 06:17:41,267 INFO L225 Difference]: With dead ends: 68274 [2025-03-08 06:17:41,267 INFO L226 Difference]: Without dead ends: 60663 [2025-03-08 06:17:41,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=399, Invalid=3023, Unknown=0, NotChecked=0, Total=3422 [2025-03-08 06:17:41,291 INFO L435 NwaCegarLoop]: 346 mSDtfsCounter, 1152 mSDsluCounter, 4986 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 5332 SdHoareTripleChecker+Invalid, 2459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 06:17:41,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 5332 Invalid, 2459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 06:17:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60663 states. [2025-03-08 06:17:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60663 to 33411. [2025-03-08 06:17:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33411 states, 33410 states have (on average 1.1655791679137983) internal successors, (38942), 33410 states have internal predecessors, (38942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33411 states to 33411 states and 38942 transitions. [2025-03-08 06:17:41,669 INFO L78 Accepts]: Start accepts. Automaton has 33411 states and 38942 transitions. Word has length 115 [2025-03-08 06:17:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 06:17:41,669 INFO L471 AbstractCegarLoop]: Abstraction has 33411 states and 38942 transitions. [2025-03-08 06:17:41,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.6) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 06:17:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 33411 states and 38942 transitions. [2025-03-08 06:17:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-08 06:17:41,672 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 06:17:41,672 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 06:17:41,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 06:17:41,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2025-03-08 06:17:41,873 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2025-03-08 06:17:41,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 06:17:41,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1563263030, now seen corresponding path program 1 times [2025-03-08 06:17:41,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 06:17:41,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701797801] [2025-03-08 06:17:41,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:41,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 06:17:41,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 06:17:41,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 06:17:41,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:41,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:42,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 06:17:42,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701797801] [2025-03-08 06:17:42,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701797801] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 06:17:42,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280711852] [2025-03-08 06:17:42,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 06:17:42,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 06:17:42,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 06:17:42,526 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 06:17:42,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 06:17:42,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 06:17:42,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 06:17:42,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 06:17:42,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 06:17:42,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-08 06:17:42,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 06:17:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:43,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 06:17:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 06:17:43,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280711852] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 06:17:43,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 06:17:43,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 12, 11] total 40 [2025-03-08 06:17:43,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642352672] [2025-03-08 06:17:43,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 06:17:43,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2025-03-08 06:17:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 06:17:43,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2025-03-08 06:17:43,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1444, Unknown=0, NotChecked=0, Total=1560 [2025-03-08 06:17:43,846 INFO L87 Difference]: Start difference. First operand 33411 states and 38942 transitions. Second operand has 40 states, 40 states have (on average 8.2) internal successors, (328), 40 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)