./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-92.i -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 34a7e7e1117c68f092f781b8dcc8b7b6859e863c3fe77a01a5acd93b0a231d14 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 06:14:49,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 06:14:49,347 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-17 06:14:49,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 06:14:49,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 06:14:49,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 06:14:49,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 06:14:49,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 06:14:49,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 06:14:49,376 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 06:14:49,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 06:14:49,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 06:14:49,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 06:14:49,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 06:14:49,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 06:14:49,378 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:14:49,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 06:14:49,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 06:14:49,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 06:14:49,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 06:14:49,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 06:14:49,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 06:14:49,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 06:14:49,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 06:14:49,379 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 -> 34a7e7e1117c68f092f781b8dcc8b7b6859e863c3fe77a01a5acd93b0a231d14 [2025-03-17 06:14:49,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 06:14:49,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 06:14:49,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 06:14:49,622 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 06:14:49,622 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 06:14:49,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-92.i [2025-03-17 06:14:50,758 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad75b6d2/5aae298ea85542f6a9b987e2422e0f30/FLAG6509bed45 [2025-03-17 06:14:51,015 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 06:14:51,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-92.i [2025-03-17 06:14:51,026 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad75b6d2/5aae298ea85542f6a9b987e2422e0f30/FLAG6509bed45 [2025-03-17 06:14:51,323 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dad75b6d2/5aae298ea85542f6a9b987e2422e0f30 [2025-03-17 06:14:51,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 06:14:51,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 06:14:51,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 06:14:51,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 06:14:51,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 06:14:51,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c31941c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51, skipping insertion in model container [2025-03-17 06:14:51,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 06:14:51,450 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-92.i[917,930] [2025-03-17 06:14:51,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:14:51,512 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 06:14:51,521 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-92.i[917,930] [2025-03-17 06:14:51,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 06:14:51,570 INFO L204 MainTranslator]: Completed translation [2025-03-17 06:14:51,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51 WrapperNode [2025-03-17 06:14:51,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 06:14:51,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 06:14:51,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 06:14:51,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 06:14:51,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,609 INFO L138 Inliner]: procedures = 30, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 462 [2025-03-17 06:14:51,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 06:14:51,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 06:14:51,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 06:14:51,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 06:14:51,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,626 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-17 06:14:51,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,637 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 06:14:51,649 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 06:14:51,649 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 06:14:51,649 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 06:14:51,652 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (1/1) ... [2025-03-17 06:14:51,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 06:14:51,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:14:51,679 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) [2025-03-17 06:14:51,682 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 [2025-03-17 06:14:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 06:14:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-03-17 06:14:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-17 06:14:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-03-17 06:14:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 06:14:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-03-17 06:14:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 06:14:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 06:14:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 06:14:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 06:14:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 06:14:51,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 06:14:51,805 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 06:14:51,807 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 06:14:52,347 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L131: havoc property_#t~mem86#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~mem81#1;havoc property_#t~mem79#1;havoc property_#t~mem80#1;havoc property_#t~ite85#1;havoc property_#t~mem82#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~mem87#1;havoc property_#t~mem88#1;havoc property_#t~mem89#1;havoc property_#t~bitwise90#1;havoc property_#t~mem91#1;havoc property_#t~ite96#1;havoc property_#t~mem93#1;havoc property_#t~mem92#1;havoc property_#t~mem95#1;havoc property_#t~mem94#1;havoc property_#t~short97#1;havoc property_#t~mem102#1;havoc property_#t~mem98#1;havoc property_#t~ite101#1;havoc property_#t~mem99#1;havoc property_#t~mem100#1;havoc property_#t~short103#1;havoc property_#t~mem104#1;havoc property_#t~ite110#1;havoc property_#t~mem109#1;havoc property_#t~mem108#1;havoc property_#t~mem105#1;havoc property_#t~ite107#1;havoc property_#t~mem106#1;havoc property_#t~short111#1;havoc property_#t~mem112#1;havoc property_#t~mem113#1;havoc property_#t~ite120#1;havoc property_#t~mem115#1;havoc property_#t~mem114#1;havoc property_#t~mem119#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~short118#1;havoc property_#t~short121#1;havoc property_#t~mem123#1;havoc property_#t~mem122#1;havoc property_#t~short124#1; [2025-03-17 06:14:52,375 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2025-03-17 06:14:52,375 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 06:14:52,387 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 06:14:52,387 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 06:14:52,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:14:52 BoogieIcfgContainer [2025-03-17 06:14:52,388 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 06:14:52,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 06:14:52,390 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 06:14:52,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 06:14:52,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:14:51" (1/3) ... [2025-03-17 06:14:52,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ecf199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:14:52, skipping insertion in model container [2025-03-17 06:14:52,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:14:51" (2/3) ... [2025-03-17 06:14:52,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ecf199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:14:52, skipping insertion in model container [2025-03-17 06:14:52,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:14:52" (3/3) ... [2025-03-17 06:14:52,396 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-92.i [2025-03-17 06:14:52,406 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 06:14:52,407 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-92.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-17 06:14:52,441 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 06:14:52,449 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;@60b44c30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 06:14:52,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 06:14:52,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 85 states have (on average 1.388235294117647) internal successors, (118), 86 states have internal predecessors, (118), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 06:14:52,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 06:14:52,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:14:52,465 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:14:52,465 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:14:52,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:14:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash -941516857, now seen corresponding path program 1 times [2025-03-17 06:14:52,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:14:52,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695588178] [2025-03-17 06:14:52,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:14:52,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:14:52,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:14:52,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:14:52,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:14:52,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:14:52,845 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-17 06:14:52,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:14:52,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695588178] [2025-03-17 06:14:52,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695588178] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:14:52,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039258437] [2025-03-17 06:14:52,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:14:52,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:14:52,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:14:52,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:14:52,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 06:14:52,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:14:53,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:14:53,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:14:53,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:14:53,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 06:14:53,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:14:53,104 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2025-03-17 06:14:53,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 06:14:53,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039258437] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:14:53,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 06:14:53,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 06:14:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477429520] [2025-03-17 06:14:53,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:14:53,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 06:14:53,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:14:53,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 06:14:53,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:14:53,128 INFO L87 Difference]: Start difference. First operand has 107 states, 85 states have (on average 1.388235294117647) internal successors, (118), 86 states have internal predecessors, (118), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-17 06:14:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:14:53,152 INFO L93 Difference]: Finished difference Result 211 states and 329 transitions. [2025-03-17 06:14:53,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 06:14:53,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 149 [2025-03-17 06:14:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:14:53,159 INFO L225 Difference]: With dead ends: 211 [2025-03-17 06:14:53,160 INFO L226 Difference]: Without dead ends: 105 [2025-03-17 06:14:53,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 06:14:53,165 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:14:53,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:14:53,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-17 06:14:53,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-03-17 06:14:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 84 states have internal predecessors, (114), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 06:14:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 152 transitions. [2025-03-17 06:14:53,194 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 152 transitions. Word has length 149 [2025-03-17 06:14:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:14:53,195 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 152 transitions. [2025-03-17 06:14:53,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-17 06:14:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 152 transitions. [2025-03-17 06:14:53,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 06:14:53,197 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:14:53,197 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:14:53,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 06:14:53,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 06:14:53,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:14:53,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:14:53,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1845817528, now seen corresponding path program 1 times [2025-03-17 06:14:53,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:14:53,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916423329] [2025-03-17 06:14:53,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:14:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:14:53,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:14:53,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:14:53,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:14:53,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:14:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2025-03-17 06:14:53,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:14:53,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916423329] [2025-03-17 06:14:53,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916423329] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 06:14:53,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 06:14:53,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 06:14:53,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879286126] [2025-03-17 06:14:53,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 06:14:53,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 06:14:53,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:14:53,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 06:14:53,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 06:14:53,748 INFO L87 Difference]: Start difference. First operand 105 states and 152 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 06:14:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:14:53,788 INFO L93 Difference]: Finished difference Result 212 states and 307 transitions. [2025-03-17 06:14:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 06:14:53,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 149 [2025-03-17 06:14:53,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:14:53,791 INFO L225 Difference]: With dead ends: 212 [2025-03-17 06:14:53,791 INFO L226 Difference]: Without dead ends: 108 [2025-03-17 06:14:53,792 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 [2025-03-17 06:14:53,792 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 06:14:53,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 432 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 06:14:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2025-03-17 06:14:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2025-03-17 06:14:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 86 states have internal predecessors, (116), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 06:14:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2025-03-17 06:14:53,800 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 149 [2025-03-17 06:14:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:14:53,801 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2025-03-17 06:14:53,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2025-03-17 06:14:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2025-03-17 06:14:53,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 06:14:53,803 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:14:53,804 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:14:53,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 06:14:53,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:14:53,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:14:53,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1846741049, now seen corresponding path program 1 times [2025-03-17 06:14:53,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:14:53,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050821703] [2025-03-17 06:14:53,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:14:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:14:53,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:14:54,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:14:54,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:14:54,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:14:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2025-03-17 06:14:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 06:14:56,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050821703] [2025-03-17 06:14:56,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050821703] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:14:56,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857858731] [2025-03-17 06:14:56,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:14:56,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 06:14:56,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 06:14:56,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 06:14:56,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 06:14:56,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:14:56,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:14:56,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:14:56,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:14:56,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-03-17 06:14:56,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 06:14:56,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 06:14:56,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:56,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:57,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:57,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:57,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:57,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:57,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:58,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:58,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:58,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:14:58,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:58,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-17 06:14:58,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-03-17 06:14:58,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-17 06:14:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 16 proven. 184 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2025-03-17 06:14:58,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 06:14:58,596 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_562 (Array Int Int))) (or (< 0 (+ (select (select (store |c_#memory_int| c_~WrapperStruct00_var_1_7_Pointer~0.base v_ArrVal_562) c_~WrapperStruct00_var_1_2_Pointer~0.base) c_~WrapperStruct00_var_1_2_Pointer~0.offset) 1)) (not (= v_ArrVal_562 (store (select |c_#memory_int| c_~WrapperStruct00_var_1_7_Pointer~0.base) c_~WrapperStruct00_var_1_7_Pointer~0.offset (select v_ArrVal_562 c_~WrapperStruct00_var_1_7_Pointer~0.offset)))))) is different from false [2025-03-17 06:14:58,615 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_561 Int) (v_ArrVal_562 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset v_ArrVal_561)))) (or (< 0 (+ (select (select (store .cse0 c_~WrapperStruct00_var_1_7_Pointer~0.base v_ArrVal_562) c_~WrapperStruct00_var_1_2_Pointer~0.base) c_~WrapperStruct00_var_1_2_Pointer~0.offset) 1)) (not (= v_ArrVal_562 (store (select .cse0 c_~WrapperStruct00_var_1_7_Pointer~0.base) c_~WrapperStruct00_var_1_7_Pointer~0.offset (select v_ArrVal_562 c_~WrapperStruct00_var_1_7_Pointer~0.offset))))))) is different from false [2025-03-17 06:14:58,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857858731] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 06:14:58,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 06:14:58,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-03-17 06:14:58,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409144896] [2025-03-17 06:14:58,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 06:14:58,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 06:14:58,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 06:14:58,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 06:14:58,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=246, Unknown=2, NotChecked=66, Total=380 [2025-03-17 06:14:58,651 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 18 states, 16 states have (on average 6.375) internal successors, (102), 18 states have internal predecessors, (102), 6 states have call successors, (38), 4 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2025-03-17 06:14:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 06:14:59,284 INFO L93 Difference]: Finished difference Result 220 states and 313 transitions. [2025-03-17 06:14:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 06:14:59,285 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.375) internal successors, (102), 18 states have internal predecessors, (102), 6 states have call successors, (38), 4 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) Word has length 149 [2025-03-17 06:14:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 06:14:59,286 INFO L225 Difference]: With dead ends: 220 [2025-03-17 06:14:59,286 INFO L226 Difference]: Without dead ends: 114 [2025-03-17 06:14:59,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=378, Unknown=2, NotChecked=86, Total=600 [2025-03-17 06:14:59,287 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 215 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 06:14:59,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 505 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 06:14:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2025-03-17 06:14:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2025-03-17 06:14:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3258426966292134) internal successors, (118), 89 states have internal predecessors, (118), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 06:14:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 156 transitions. [2025-03-17 06:14:59,296 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 156 transitions. Word has length 149 [2025-03-17 06:14:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 06:14:59,296 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 156 transitions. [2025-03-17 06:14:59,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.375) internal successors, (102), 18 states have internal predecessors, (102), 6 states have call successors, (38), 4 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 6 states have call successors, (38) [2025-03-17 06:14:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 156 transitions. [2025-03-17 06:14:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-03-17 06:14:59,298 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 06:14:59,298 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 06:14:59,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 06:14:59,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-17 06:14:59,502 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 06:14:59,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 06:14:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2058091962, now seen corresponding path program 1 times [2025-03-17 06:14:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 06:14:59,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530236908] [2025-03-17 06:14:59,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 06:14:59,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 06:14:59,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-03-17 06:14:59,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-03-17 06:14:59,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 06:14:59,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 06:16:15,959 WARN L286 SmtUtils]: Spent 6.39s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)