./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+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 d9dc4c1afb888b23c0ebc469c8090d62842d0a0c5570d5e56681453b5bd49afb --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 15:10:33,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 15:10:33,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 15:10:33,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 15:10:33,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 15:10:33,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 15:10:33,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 15:10:33,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 15:10:33,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 15:10:33,615 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 15:10:33,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 15:10:33,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 15:10:33,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 15:10:33,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 15:10:33,615 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 15:10:33,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 15:10:33,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 15:10:33,616 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 15:10:33,617 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 15:10:33,618 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:10:33,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 15:10:33,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 15:10:33,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 15:10:33,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 15:10:33,619 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 15:10:33,619 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 -> d9dc4c1afb888b23c0ebc469c8090d62842d0a0c5570d5e56681453b5bd49afb [2025-03-03 15:10:33,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 15:10:33,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 15:10:33,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 15:10:33,855 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 15:10:33,856 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 15:10:33,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2025-03-03 15:10:35,034 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331eaa979/deaa6486bac5495ebbddfc863f21e4ed/FLAG2395245bc [2025-03-03 15:10:35,303 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 15:10:35,309 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2025-03-03 15:10:35,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331eaa979/deaa6486bac5495ebbddfc863f21e4ed/FLAG2395245bc [2025-03-03 15:10:35,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/331eaa979/deaa6486bac5495ebbddfc863f21e4ed [2025-03-03 15:10:35,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 15:10:35,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 15:10:35,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 15:10:35,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 15:10:35,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 15:10:35,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:10:35" (1/1) ... [2025-03-03 15:10:35,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ede53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:35, skipping insertion in model container [2025-03-03 15:10:35,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 03:10:35" (1/1) ... [2025-03-03 15:10:35,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 15:10:35,917 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c[15364,15377] [2025-03-03 15:10:35,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:10:35,999 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 15:10:36,073 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c[15364,15377] [2025-03-03 15:10:36,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 15:10:36,138 INFO L204 MainTranslator]: Completed translation [2025-03-03 15:10:36,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36 WrapperNode [2025-03-03 15:10:36,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 15:10:36,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 15:10:36,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 15:10:36,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 15:10:36,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,200 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1712 [2025-03-03 15:10:36,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 15:10:36,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 15:10:36,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 15:10:36,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 15:10:36,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,250 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]. [2025-03-03 15:10:36,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,264 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 15:10:36,280 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 15:10:36,280 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 15:10:36,280 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 15:10:36,281 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (1/1) ... [2025-03-03 15:10:36,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 15:10:36,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 15:10:36,316 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) [2025-03-03 15:10:36,323 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 [2025-03-03 15:10:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 15:10:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 15:10:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 15:10:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 15:10:36,463 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 15:10:36,464 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 15:10:37,418 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1951: havoc main_~node6____CPAchecker_TMP_0~2#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2151: havoc main_~node4____CPAchecker_TMP_1~2#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2812: havoc main_~node2____CPAchecker_TMP_0~3#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L567: 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; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1030: havoc main_~node5____CPAchecker_TMP_1~0#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1692: havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node2__m2~1#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2554: havoc main_~node5____CPAchecker_TMP_0~3#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L772: havoc main_~node4__m4~3#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2754: havoc main_~node3____CPAchecker_TMP_1~3#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L640: havoc main_~node5__m5~2#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L310: havoc main_~node3__m3~0#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1434: havoc main_~node6____CPAchecker_TMP_0~1#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1634: havoc main_~node4____CPAchecker_TMP_1~1#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L511: havoc main_~node6__m6~1#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2295: havoc main_~node2____CPAchecker_TMP_0~2#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1174: havoc main_~node3____CPAchecker_TMP_0~0#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2496: havoc main_~node6____CPAchecker_TMP_1~3#1; [2025-03-03 15:10:37,419 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2037: havoc main_~node5____CPAchecker_TMP_0~2#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: 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; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2237: havoc main_~node3____CPAchecker_TMP_1~2#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L916: havoc main_~node6____CPAchecker_TMP_0~0#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2898: havoc main_~node1____CPAchecker_TMP_0~3#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L586: havoc main_~node2__m2~2#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1116: havoc main_~node4____CPAchecker_TMP_1~0#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1778: havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L457: havoc main_~node3__m3~1#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1979: havoc main_~node6____CPAchecker_TMP_1~2#1; [2025-03-03 15:10:37,420 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L790: havoc main_~node5__m5~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L658: havoc main_~node6__m6~2#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2640: havoc main_~node4____CPAchecker_TMP_0~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L328: havoc main_~node4__m4~0#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2840: havoc main_~node2____CPAchecker_TMP_1~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1520: havoc main_~node5____CPAchecker_TMP_0~1#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L860: 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; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1720: havoc main_~node3____CPAchecker_TMP_1~1#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2381: havoc main_~node1____CPAchecker_TMP_0~2#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1260: havoc main_~node2____CPAchecker_TMP_0~0#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2582: havoc main_~node5____CPAchecker_TMP_1~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1462: havoc main_~node6____CPAchecker_TMP_1~1#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L273: havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2123: havoc main_~node4____CPAchecker_TMP_0~2#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: havoc main_~node2__m2~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L604: havoc main_~node3__m3~2#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2323: havoc main_~node2____CPAchecker_TMP_1~2#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1002: havoc main_~node5____CPAchecker_TMP_0~0#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L475: havoc main_~node4__m4~1#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1202: havoc main_~node3____CPAchecker_TMP_1~0#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1864: havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L808: havoc main_~node6__m6~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L346: havoc main_~node5__m5~0#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2065: havoc main_~node5____CPAchecker_TMP_1~2#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2726: havoc main_~node3____CPAchecker_TMP_0~3#1; [2025-03-03 15:10:37,421 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L944: havoc main_~node6____CPAchecker_TMP_1~0#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1606: havoc main_~node4____CPAchecker_TMP_0~1#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1806: havoc main_~node2____CPAchecker_TMP_1~1#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2468: havoc main_~node6____CPAchecker_TMP_0~3#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L420: 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; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1346: havoc main_~node1____CPAchecker_TMP_0~0#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2668: havoc main_~node4____CPAchecker_TMP_1~3#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L754: havoc main_~node3__m3~3#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L622: havoc main_~node4__m4~2#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L292: havoc main_~node2__m2~0#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1548: havoc main_~node5____CPAchecker_TMP_1~1#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2209: havoc main_~node3____CPAchecker_TMP_0~2#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L493: havoc main_~node5__m5~1#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1088: havoc main_~node4____CPAchecker_TMP_0~0#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1288: havoc main_~node2____CPAchecker_TMP_1~0#1; [2025-03-03 15:10:37,422 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L364: havoc main_~node6__m6~0#1; [2025-03-03 15:10:37,500 INFO L? ?]: Removed 222 outVars from TransFormulas that were not future-live. [2025-03-03 15:10:37,500 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 15:10:37,517 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 15:10:37,517 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 15:10:37,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:10:37 BoogieIcfgContainer [2025-03-03 15:10:37,517 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 15:10:37,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 15:10:37,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 15:10:37,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 15:10:37,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 03:10:35" (1/3) ... [2025-03-03 15:10:37,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20852bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:10:37, skipping insertion in model container [2025-03-03 15:10:37,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 03:10:36" (2/3) ... [2025-03-03 15:10:37,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20852bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 03:10:37, skipping insertion in model container [2025-03-03 15:10:37,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 03:10:37" (3/3) ... [2025-03-03 15:10:37,530 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c [2025-03-03 15:10:37,541 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 15:10:37,544 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c.p+lhb-reducer.c that has 1 procedures, 487 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-03 15:10:37,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 15:10:37,608 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;@51cf194b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 15:10:37,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 15:10:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 487 states, 485 states have (on average 1.6494845360824741) internal successors, (800), 486 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-03 15:10:37,631 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:37,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:37,632 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:37,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1126026280, now seen corresponding path program 1 times [2025-03-03 15:10:37,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:37,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912365135] [2025-03-03 15:10:37,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:37,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:37,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-03 15:10:37,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-03 15:10:37,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:37,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:38,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:38,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912365135] [2025-03-03 15:10:38,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912365135] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:38,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:38,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 15:10:38,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159072889] [2025-03-03 15:10:38,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:38,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 15:10:38,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:38,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 15:10:38,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:10:38,126 INFO L87 Difference]: Start difference. First operand has 487 states, 485 states have (on average 1.6494845360824741) internal successors, (800), 486 states have internal predecessors, (800), 0 states have call successors, (0), 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 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:38,270 INFO L93 Difference]: Finished difference Result 932 states and 1517 transitions. [2025-03-03 15:10:38,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 15:10:38,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2025-03-03 15:10:38,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:38,279 INFO L225 Difference]: With dead ends: 932 [2025-03-03 15:10:38,279 INFO L226 Difference]: Without dead ends: 484 [2025-03-03 15:10:38,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 15:10:38,289 INFO L435 NwaCegarLoop]: 795 mSDtfsCounter, 175 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:38,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 2153 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 15:10:38,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2025-03-03 15:10:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2025-03-03 15:10:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.5486542443064182) internal successors, (748), 483 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 748 transitions. [2025-03-03 15:10:38,334 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 748 transitions. Word has length 119 [2025-03-03 15:10:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:38,334 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 748 transitions. [2025-03-03 15:10:38,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 748 transitions. [2025-03-03 15:10:38,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-03-03 15:10:38,338 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:38,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:38,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 15:10:38,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:38,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:38,340 INFO L85 PathProgramCache]: Analyzing trace with hash -615003797, now seen corresponding path program 1 times [2025-03-03 15:10:38,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:38,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893410091] [2025-03-03 15:10:38,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:38,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-03-03 15:10:38,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-03-03 15:10:38,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:38,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:38,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893410091] [2025-03-03 15:10:38,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893410091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:38,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:38,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:38,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857070466] [2025-03-03 15:10:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:38,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:38,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:38,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:38,550 INFO L87 Difference]: Start difference. First operand 484 states and 748 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:38,615 INFO L93 Difference]: Finished difference Result 1159 states and 1827 transitions. [2025-03-03 15:10:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2025-03-03 15:10:38,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:38,621 INFO L225 Difference]: With dead ends: 1159 [2025-03-03 15:10:38,621 INFO L226 Difference]: Without dead ends: 746 [2025-03-03 15:10:38,622 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 [2025-03-03 15:10:38,623 INFO L435 NwaCegarLoop]: 735 mSDtfsCounter, 506 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:38,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1337 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:38,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2025-03-03 15:10:38,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2025-03-03 15:10:38,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 1.5625841184387619) internal successors, (1161), 743 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1161 transitions. [2025-03-03 15:10:38,660 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1161 transitions. Word has length 159 [2025-03-03 15:10:38,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:38,661 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 1161 transitions. [2025-03-03 15:10:38,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1161 transitions. [2025-03-03 15:10:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-03-03 15:10:38,664 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:38,664 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:38,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 15:10:38,666 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:38,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:38,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1817462285, now seen corresponding path program 1 times [2025-03-03 15:10:38,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:38,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635813566] [2025-03-03 15:10:38,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:38,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:38,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-03-03 15:10:38,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-03-03 15:10:38,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:38,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:38,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:38,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635813566] [2025-03-03 15:10:38,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635813566] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:38,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:38,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:38,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042875230] [2025-03-03 15:10:38,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:38,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:38,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:38,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:38,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:38,835 INFO L87 Difference]: Start difference. First operand 744 states and 1161 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:38,887 INFO L93 Difference]: Finished difference Result 1863 states and 2947 transitions. [2025-03-03 15:10:38,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2025-03-03 15:10:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:38,893 INFO L225 Difference]: With dead ends: 1863 [2025-03-03 15:10:38,893 INFO L226 Difference]: Without dead ends: 1203 [2025-03-03 15:10:38,894 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 [2025-03-03 15:10:38,897 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 491 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:38,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1302 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2025-03-03 15:10:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1201. [2025-03-03 15:10:38,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.5708333333333333) internal successors, (1885), 1200 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1885 transitions. [2025-03-03 15:10:38,927 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1885 transitions. Word has length 161 [2025-03-03 15:10:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:38,928 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1885 transitions. [2025-03-03 15:10:38,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1885 transitions. [2025-03-03 15:10:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-03 15:10:38,932 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:38,932 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:38,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 15:10:38,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:38,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1168386871, now seen corresponding path program 1 times [2025-03-03 15:10:38,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:38,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162669288] [2025-03-03 15:10:38,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:38,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:38,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-03 15:10:38,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-03 15:10:38,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:38,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:39,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:39,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:39,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162669288] [2025-03-03 15:10:39,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162669288] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:39,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:39,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:39,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344996816] [2025-03-03 15:10:39,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:39,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:39,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:39,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:39,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:39,077 INFO L87 Difference]: Start difference. First operand 1201 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:39,128 INFO L93 Difference]: Finished difference Result 3090 states and 4890 transitions. [2025-03-03 15:10:39,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:39,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2025-03-03 15:10:39,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:39,136 INFO L225 Difference]: With dead ends: 3090 [2025-03-03 15:10:39,137 INFO L226 Difference]: Without dead ends: 1986 [2025-03-03 15:10:39,138 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 [2025-03-03 15:10:39,141 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 475 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:39,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 1416 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2025-03-03 15:10:39,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1984. [2025-03-03 15:10:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1984 states, 1983 states have (on average 1.572869389813414) internal successors, (3119), 1983 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 3119 transitions. [2025-03-03 15:10:39,186 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 3119 transitions. Word has length 163 [2025-03-03 15:10:39,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:39,186 INFO L471 AbstractCegarLoop]: Abstraction has 1984 states and 3119 transitions. [2025-03-03 15:10:39,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 3119 transitions. [2025-03-03 15:10:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-03 15:10:39,192 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:39,193 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:39,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 15:10:39,193 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:39,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:39,196 INFO L85 PathProgramCache]: Analyzing trace with hash -215579571, now seen corresponding path program 1 times [2025-03-03 15:10:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:39,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381779133] [2025-03-03 15:10:39,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:39,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:39,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-03 15:10:39,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-03 15:10:39,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:39,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:39,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:39,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381779133] [2025-03-03 15:10:39,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381779133] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:39,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:39,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:39,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791869107] [2025-03-03 15:10:39,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:39,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:39,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:39,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:39,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:39,326 INFO L87 Difference]: Start difference. First operand 1984 states and 3119 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:39,377 INFO L93 Difference]: Finished difference Result 5159 states and 8143 transitions. [2025-03-03 15:10:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:39,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2025-03-03 15:10:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:39,388 INFO L225 Difference]: With dead ends: 5159 [2025-03-03 15:10:39,388 INFO L226 Difference]: Without dead ends: 3285 [2025-03-03 15:10:39,390 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 [2025-03-03 15:10:39,391 INFO L435 NwaCegarLoop]: 705 mSDtfsCounter, 461 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:39,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 1232 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2025-03-03 15:10:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 3283. [2025-03-03 15:10:39,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 1.568860450944546) internal successors, (5149), 3282 states have internal predecessors, (5149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 5149 transitions. [2025-03-03 15:10:39,460 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 5149 transitions. Word has length 165 [2025-03-03 15:10:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:39,460 INFO L471 AbstractCegarLoop]: Abstraction has 3283 states and 5149 transitions. [2025-03-03 15:10:39,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 5149 transitions. [2025-03-03 15:10:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-03-03 15:10:39,466 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:39,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:39,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 15:10:39,467 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:39,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:39,467 INFO L85 PathProgramCache]: Analyzing trace with hash -697559549, now seen corresponding path program 1 times [2025-03-03 15:10:39,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:39,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963576367] [2025-03-03 15:10:39,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:39,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:39,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-03-03 15:10:39,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-03-03 15:10:39,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:39,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:39,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:39,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963576367] [2025-03-03 15:10:39,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963576367] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:39,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:39,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537528777] [2025-03-03 15:10:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:39,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:39,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:39,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:39,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:39,566 INFO L87 Difference]: Start difference. First operand 3283 states and 5149 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:39,624 INFO L93 Difference]: Finished difference Result 8504 states and 13344 transitions. [2025-03-03 15:10:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:39,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2025-03-03 15:10:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:39,641 INFO L225 Difference]: With dead ends: 8504 [2025-03-03 15:10:39,641 INFO L226 Difference]: Without dead ends: 5344 [2025-03-03 15:10:39,646 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 [2025-03-03 15:10:39,647 INFO L435 NwaCegarLoop]: 695 mSDtfsCounter, 446 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:39,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1197 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:39,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2025-03-03 15:10:39,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5342. [2025-03-03 15:10:39,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5342 states, 5341 states have (on average 1.5583224115334207) internal successors, (8323), 5341 states have internal predecessors, (8323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5342 states to 5342 states and 8323 transitions. [2025-03-03 15:10:39,761 INFO L78 Accepts]: Start accepts. Automaton has 5342 states and 8323 transitions. Word has length 167 [2025-03-03 15:10:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:39,761 INFO L471 AbstractCegarLoop]: Abstraction has 5342 states and 8323 transitions. [2025-03-03 15:10:39,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5342 states and 8323 transitions. [2025-03-03 15:10:39,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-03 15:10:39,770 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:39,770 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:39,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 15:10:39,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:39,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:39,771 INFO L85 PathProgramCache]: Analyzing trace with hash 550352269, now seen corresponding path program 1 times [2025-03-03 15:10:39,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:39,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329833085] [2025-03-03 15:10:39,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:39,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:39,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-03 15:10:39,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-03 15:10:39,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:39,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:39,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:39,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:39,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329833085] [2025-03-03 15:10:39,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329833085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:39,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:39,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 15:10:39,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563723413] [2025-03-03 15:10:39,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:39,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 15:10:39,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:39,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 15:10:39,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-03 15:10:39,979 INFO L87 Difference]: Start difference. First operand 5342 states and 8323 transitions. Second operand has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:40,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:40,446 INFO L93 Difference]: Finished difference Result 36365 states and 56593 transitions. [2025-03-03 15:10:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 15:10:40,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2025-03-03 15:10:40,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:40,520 INFO L225 Difference]: With dead ends: 36365 [2025-03-03 15:10:40,521 INFO L226 Difference]: Without dead ends: 31150 [2025-03-03 15:10:40,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2025-03-03 15:10:40,535 INFO L435 NwaCegarLoop]: 714 mSDtfsCounter, 6578 mSDsluCounter, 8599 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6578 SdHoareTripleChecker+Valid, 9313 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:40,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6578 Valid, 9313 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:10:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31150 states. [2025-03-03 15:10:41,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31150 to 10625. [2025-03-03 15:10:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10625 states, 10624 states have (on average 1.5423569277108433) internal successors, (16386), 10624 states have internal predecessors, (16386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10625 states to 10625 states and 16386 transitions. [2025-03-03 15:10:41,055 INFO L78 Accepts]: Start accepts. Automaton has 10625 states and 16386 transitions. Word has length 169 [2025-03-03 15:10:41,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:41,055 INFO L471 AbstractCegarLoop]: Abstraction has 10625 states and 16386 transitions. [2025-03-03 15:10:41,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.125) internal successors, (169), 8 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:41,055 INFO L276 IsEmpty]: Start isEmpty. Operand 10625 states and 16386 transitions. [2025-03-03 15:10:41,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-03 15:10:41,071 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:41,072 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:41,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 15:10:41,072 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:41,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:41,072 INFO L85 PathProgramCache]: Analyzing trace with hash 995807711, now seen corresponding path program 1 times [2025-03-03 15:10:41,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:41,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585096137] [2025-03-03 15:10:41,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:41,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:41,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-03 15:10:41,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-03 15:10:41,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:41,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:41,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:41,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585096137] [2025-03-03 15:10:41,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585096137] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837275145] [2025-03-03 15:10:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:41,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:41,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:41,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:41,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:41,163 INFO L87 Difference]: Start difference. First operand 10625 states and 16386 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:41,239 INFO L93 Difference]: Finished difference Result 30001 states and 46188 transitions. [2025-03-03 15:10:41,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:41,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2025-03-03 15:10:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:41,269 INFO L225 Difference]: With dead ends: 30001 [2025-03-03 15:10:41,269 INFO L226 Difference]: Without dead ends: 19429 [2025-03-03 15:10:41,285 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 [2025-03-03 15:10:41,285 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 501 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:41,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1594 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19429 states. [2025-03-03 15:10:41,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19429 to 19427. [2025-03-03 15:10:41,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19427 states, 19426 states have (on average 1.530371666838258) internal successors, (29729), 19426 states have internal predecessors, (29729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19427 states to 19427 states and 29729 transitions. [2025-03-03 15:10:41,611 INFO L78 Accepts]: Start accepts. Automaton has 19427 states and 29729 transitions. Word has length 172 [2025-03-03 15:10:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:41,611 INFO L471 AbstractCegarLoop]: Abstraction has 19427 states and 29729 transitions. [2025-03-03 15:10:41,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 19427 states and 29729 transitions. [2025-03-03 15:10:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-03 15:10:41,640 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:41,640 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:41,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 15:10:41,640 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:41,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:41,641 INFO L85 PathProgramCache]: Analyzing trace with hash -65971595, now seen corresponding path program 1 times [2025-03-03 15:10:41,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:41,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171538830] [2025-03-03 15:10:41,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:41,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:41,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-03 15:10:41,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-03 15:10:41,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:41,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:41,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:41,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171538830] [2025-03-03 15:10:41,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171538830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:41,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:41,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:41,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115793055] [2025-03-03 15:10:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:41,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:41,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:41,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:41,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:41,776 INFO L87 Difference]: Start difference. First operand 19427 states and 29729 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:41,895 INFO L93 Difference]: Finished difference Result 56526 states and 86391 transitions. [2025-03-03 15:10:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:41,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2025-03-03 15:10:41,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:41,953 INFO L225 Difference]: With dead ends: 56526 [2025-03-03 15:10:41,953 INFO L226 Difference]: Without dead ends: 37267 [2025-03-03 15:10:41,981 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 [2025-03-03 15:10:41,981 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 550 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:41,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1317 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:42,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37267 states. [2025-03-03 15:10:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37267 to 37265. [2025-03-03 15:10:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37265 states, 37264 states have (on average 1.5196972949763847) internal successors, (56630), 37264 states have internal predecessors, (56630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37265 states to 37265 states and 56630 transitions. [2025-03-03 15:10:42,558 INFO L78 Accepts]: Start accepts. Automaton has 37265 states and 56630 transitions. Word has length 173 [2025-03-03 15:10:42,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:42,559 INFO L471 AbstractCegarLoop]: Abstraction has 37265 states and 56630 transitions. [2025-03-03 15:10:42,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:42,560 INFO L276 IsEmpty]: Start isEmpty. Operand 37265 states and 56630 transitions. [2025-03-03 15:10:42,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-03 15:10:42,619 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:42,620 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:42,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 15:10:42,621 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:42,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:42,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1003437809, now seen corresponding path program 1 times [2025-03-03 15:10:42,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:42,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415243316] [2025-03-03 15:10:42,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:42,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:42,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-03 15:10:42,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-03 15:10:42,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:42,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:42,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:42,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:42,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415243316] [2025-03-03 15:10:42,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415243316] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:42,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:42,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:42,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657850974] [2025-03-03 15:10:42,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:42,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:42,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:42,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:42,730 INFO L87 Difference]: Start difference. First operand 37265 states and 56630 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:43,065 INFO L93 Difference]: Finished difference Result 108136 states and 163999 transitions. [2025-03-03 15:10:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:43,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2025-03-03 15:10:43,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:43,193 INFO L225 Difference]: With dead ends: 108136 [2025-03-03 15:10:43,193 INFO L226 Difference]: Without dead ends: 71288 [2025-03-03 15:10:43,247 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 [2025-03-03 15:10:43,248 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 532 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:43,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1317 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:43,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71288 states. [2025-03-03 15:10:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71288 to 71286. [2025-03-03 15:10:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71286 states, 71285 states have (on average 1.507357789156204) internal successors, (107452), 71285 states have internal predecessors, (107452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:44,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71286 states to 71286 states and 107452 transitions. [2025-03-03 15:10:44,479 INFO L78 Accepts]: Start accepts. Automaton has 71286 states and 107452 transitions. Word has length 173 [2025-03-03 15:10:44,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:44,479 INFO L471 AbstractCegarLoop]: Abstraction has 71286 states and 107452 transitions. [2025-03-03 15:10:44,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 71286 states and 107452 transitions. [2025-03-03 15:10:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-03 15:10:44,547 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:44,547 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:44,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 15:10:44,547 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:44,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1458537641, now seen corresponding path program 1 times [2025-03-03 15:10:44,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:44,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583378386] [2025-03-03 15:10:44,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:44,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-03 15:10:44,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-03 15:10:44,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:44,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:44,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583378386] [2025-03-03 15:10:44,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583378386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:44,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:44,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:44,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101463021] [2025-03-03 15:10:44,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:44,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:44,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:44,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:44,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:44,789 INFO L87 Difference]: Start difference. First operand 71286 states and 107452 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:45,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:45,515 INFO L93 Difference]: Finished difference Result 205694 states and 309147 transitions. [2025-03-03 15:10:45,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:45,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2025-03-03 15:10:45,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:45,774 INFO L225 Difference]: With dead ends: 205694 [2025-03-03 15:10:45,774 INFO L226 Difference]: Without dead ends: 135769 [2025-03-03 15:10:45,912 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 [2025-03-03 15:10:45,915 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 514 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:45,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1317 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135769 states. [2025-03-03 15:10:47,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135769 to 135767. [2025-03-03 15:10:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135767 states, 135766 states have (on average 1.4928774509081804) internal successors, (202682), 135766 states have internal predecessors, (202682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135767 states to 135767 states and 202682 transitions. [2025-03-03 15:10:48,383 INFO L78 Accepts]: Start accepts. Automaton has 135767 states and 202682 transitions. Word has length 173 [2025-03-03 15:10:48,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:48,383 INFO L471 AbstractCegarLoop]: Abstraction has 135767 states and 202682 transitions. [2025-03-03 15:10:48,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 135767 states and 202682 transitions. [2025-03-03 15:10:48,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-03 15:10:48,508 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:48,508 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:48,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 15:10:48,508 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:48,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash -58448573, now seen corresponding path program 1 times [2025-03-03 15:10:48,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:48,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773022105] [2025-03-03 15:10:48,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:48,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:48,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-03 15:10:48,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-03 15:10:48,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:48,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:48,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:48,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773022105] [2025-03-03 15:10:48,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773022105] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:48,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:48,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:48,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101602255] [2025-03-03 15:10:48,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:48,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:48,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:48,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:48,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:48,595 INFO L87 Difference]: Start difference. First operand 135767 states and 202682 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:49,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:49,799 INFO L93 Difference]: Finished difference Result 387308 states and 575651 transitions. [2025-03-03 15:10:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:49,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2025-03-03 15:10:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:50,120 INFO L225 Difference]: With dead ends: 387308 [2025-03-03 15:10:50,121 INFO L226 Difference]: Without dead ends: 256694 [2025-03-03 15:10:50,219 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 [2025-03-03 15:10:50,220 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 496 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:50,220 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1317 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:50,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256694 states. [2025-03-03 15:10:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256694 to 256692. [2025-03-03 15:10:53,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256692 states, 256691 states have (on average 1.4750809338854889) internal successors, (378640), 256691 states have internal predecessors, (378640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256692 states to 256692 states and 378640 transitions. [2025-03-03 15:10:54,545 INFO L78 Accepts]: Start accepts. Automaton has 256692 states and 378640 transitions. Word has length 173 [2025-03-03 15:10:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:10:54,545 INFO L471 AbstractCegarLoop]: Abstraction has 256692 states and 378640 transitions. [2025-03-03 15:10:54,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 256692 states and 378640 transitions. [2025-03-03 15:10:54,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-03 15:10:54,805 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:10:54,806 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:10:54,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 15:10:54,806 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:10:54,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:10:54,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1671093539, now seen corresponding path program 1 times [2025-03-03 15:10:54,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:10:54,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825061400] [2025-03-03 15:10:54,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:10:54,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:10:54,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-03 15:10:54,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-03 15:10:54,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:10:54,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:10:54,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:10:54,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:10:54,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825061400] [2025-03-03 15:10:54,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825061400] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:10:54,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:10:54,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 15:10:54,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166029028] [2025-03-03 15:10:54,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:10:54,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 15:10:54,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:10:54,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 15:10:54,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 15:10:54,914 INFO L87 Difference]: Start difference. First operand 256692 states and 378640 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:10:57,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:10:57,159 INFO L93 Difference]: Finished difference Result 715006 states and 1046747 transitions. [2025-03-03 15:10:57,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 15:10:57,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2025-03-03 15:10:57,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:10:57,783 INFO L225 Difference]: With dead ends: 715006 [2025-03-03 15:10:57,783 INFO L226 Difference]: Without dead ends: 478975 [2025-03-03 15:10:57,920 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 [2025-03-03 15:10:57,920 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 478 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 15:10:57,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1317 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 15:10:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478975 states. [2025-03-03 15:11:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478975 to 478973. [2025-03-03 15:11:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478973 states, 478972 states have (on average 1.4512622867307483) internal successors, (695114), 478972 states have internal predecessors, (695114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:11:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478973 states to 478973 states and 695114 transitions. [2025-03-03 15:11:06,755 INFO L78 Accepts]: Start accepts. Automaton has 478973 states and 695114 transitions. Word has length 173 [2025-03-03 15:11:06,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 15:11:06,755 INFO L471 AbstractCegarLoop]: Abstraction has 478973 states and 695114 transitions. [2025-03-03 15:11:06,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:11:06,756 INFO L276 IsEmpty]: Start isEmpty. Operand 478973 states and 695114 transitions. [2025-03-03 15:11:07,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-03 15:11:07,186 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 15:11:07,186 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 15:11:07,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 15:11:07,186 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 15:11:07,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 15:11:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash -277420818, now seen corresponding path program 1 times [2025-03-03 15:11:07,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 15:11:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875513431] [2025-03-03 15:11:07,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 15:11:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 15:11:07,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-03-03 15:11:07,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-03-03 15:11:07,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 15:11:07,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 15:11:07,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 15:11:07,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 15:11:07,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875513431] [2025-03-03 15:11:07,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875513431] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 15:11:07,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 15:11:07,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 15:11:07,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220389305] [2025-03-03 15:11:07,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 15:11:07,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 15:11:07,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 15:11:07,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 15:11:07,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-03 15:11:07,921 INFO L87 Difference]: Start difference. First operand 478973 states and 695114 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 15:11:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 15:11:10,851 INFO L93 Difference]: Finished difference Result 824290 states and 1184496 transitions. [2025-03-03 15:11:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 15:11:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2025-03-03 15:11:10,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 15:11:11,589 INFO L225 Difference]: With dead ends: 824290 [2025-03-03 15:11:11,590 INFO L226 Difference]: Without dead ends: 524570 [2025-03-03 15:11:12,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-03 15:11:12,293 INFO L435 NwaCegarLoop]: 1149 mSDtfsCounter, 3870 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3870 SdHoareTripleChecker+Valid, 3484 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 15:11:12,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3870 Valid, 3484 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 15:11:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524570 states.