./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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-66.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 9fa803c5228144b1f285d7cbd5db54178434e406a166ffeeadce9b553bef79d3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:00:26,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:00:26,346 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:00:26,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:00:26,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:00:26,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:00:26,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:00:26,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:00:26,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:00:26,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:00:26,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:00:26,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:00:26,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:00:26,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:00:26,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:00:26,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:00:26,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:00:26,387 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:00:26,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:00:26,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:00:26,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:00:26,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:00:26,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:00:26,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:00:26,389 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:00:26,389 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:00:26,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:00:26,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:00:26,390 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:00:26,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:00:26,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:00:26,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:00:26,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:00:26,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:00:26,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:00:26,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:00:26,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:00:26,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:00:26,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:00:26,393 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:00:26,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:00:26,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:00:26,393 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fa803c5228144b1f285d7cbd5db54178434e406a166ffeeadce9b553bef79d3 [2024-11-10 10:00:26,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:00:26,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:00:26,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:00:26,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:00:26,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:00:26,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-66.i [2024-11-10 10:00:27,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:00:28,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:00:28,170 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-66.i [2024-11-10 10:00:28,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b21ac831f/cc90060b1ceb4fcabab3e85dfcf417fb/FLAG72f7aafa8 [2024-11-10 10:00:28,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b21ac831f/cc90060b1ceb4fcabab3e85dfcf417fb [2024-11-10 10:00:28,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:00:28,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:00:28,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:00:28,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:00:28,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:00:28,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:28,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a31ce07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28, skipping insertion in model container [2024-11-10 10:00:28,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:28,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:00:28,827 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-66.i[917,930] [2024-11-10 10:00:28,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:00:28,930 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:00:28,939 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-66.i[917,930] [2024-11-10 10:00:28,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:00:28,991 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:00:28,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28 WrapperNode [2024-11-10 10:00:28,994 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:00:28,995 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:00:28,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:00:28,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:00:29,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,053 INFO L138 Inliner]: procedures = 27, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 438 [2024-11-10 10:00:29,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:00:29,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:00:29,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:00:29,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:00:29,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,067 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,089 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-11-10 10:00:29,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,099 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:00:29,112 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:00:29,112 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:00:29,112 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:00:29,113 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (1/1) ... [2024-11-10 10:00:29,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:00:29,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:00:29,149 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) [2024-11-10 10:00:29,152 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 [2024-11-10 10:00:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:00:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:00:29,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:00:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:00:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:00:29,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:00:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:00:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:00:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:00:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:00:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:00:29,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:00:29,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:00:29,316 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:00:29,318 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:00:29,673 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L122: havoc property_#t~mem65#1;havoc property_#t~mem66#1;havoc property_#t~ite76#1;havoc property_#t~mem72#1;havoc property_#t~mem71#1;havoc property_#t~mem67#1;havoc property_#t~mem68#1;havoc property_#t~mem69#1;havoc property_#t~mem70#1;havoc property_#t~mem75#1;havoc property_#t~mem73#1;havoc property_#t~mem74#1;havoc property_#t~mem77#1;havoc property_#t~mem78#1;havoc property_#t~short79#1;havoc property_#t~ite100#1;havoc property_#t~mem80#1;havoc property_#t~ite99#1;havoc property_#t~mem82#1;havoc property_#t~mem81#1;havoc property_#t~mem98#1;havoc property_#t~mem83#1;havoc property_#t~mem84#1;havoc property_#t~mem85#1;havoc property_#t~mem86#1;havoc property_#t~ite89#1;havoc property_#t~mem87#1;havoc property_#t~mem88#1;havoc property_#t~ite97#1;havoc property_#t~mem90#1;havoc property_#t~mem91#1;havoc property_#t~mem92#1;havoc property_#t~mem93#1;havoc property_#t~ite96#1;havoc property_#t~mem94#1;havoc property_#t~mem95#1;havoc property_#t~short101#1;havoc property_#t~mem102#1;havoc property_#t~mem103#1;havoc property_#t~ite114#1;havoc property_#t~mem105#1;havoc property_#t~mem104#1;havoc property_#t~mem107#1;havoc property_#t~mem106#1;havoc property_#t~short108#1;havoc property_#t~ite113#1;havoc property_#t~mem110#1;havoc property_#t~mem109#1;havoc property_#t~mem112#1;havoc property_#t~mem111#1;havoc property_#t~short115#1;havoc property_#t~mem117#1;havoc property_#t~mem116#1;havoc property_#t~short118#1;havoc property_#t~mem120#1;havoc property_#t~mem119#1;havoc property_#t~short121#1; [2024-11-10 10:00:29,712 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-10 10:00:29,712 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:00:29,731 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:00:29,733 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:00:29,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:00:29 BoogieIcfgContainer [2024-11-10 10:00:29,733 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:00:29,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:00:29,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:00:29,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:00:29,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:00:28" (1/3) ... [2024-11-10 10:00:29,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c92b5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:00:29, skipping insertion in model container [2024-11-10 10:00:29,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:00:28" (2/3) ... [2024-11-10 10:00:29,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c92b5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:00:29, skipping insertion in model container [2024-11-10 10:00:29,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:00:29" (3/3) ... [2024-11-10 10:00:29,743 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-66.i [2024-11-10 10:00:29,757 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:00:29,757 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:00:29,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:00:29,819 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;@68e8aabf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:00:29,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:00:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 73 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-10 10:00:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-10 10:00:29,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:00:29,842 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:00:29,842 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:00:29,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:00:29,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1726834703, now seen corresponding path program 1 times [2024-11-10 10:00:29,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:00:29,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671634937] [2024-11-10 10:00:29,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:00:29,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:00:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:00:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:00:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 10:00:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 10:00:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 10:00:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 10:00:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 10:00:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 10:00:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:00:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:00:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:00:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 10:00:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 10:00:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 10:00:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-10 10:00:30,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:00:30,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671634937] [2024-11-10 10:00:30,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671634937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:00:30,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:00:30,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:00:30,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949894000] [2024-11-10 10:00:30,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:00:30,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:00:30,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:00:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:00:30,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:00:30,286 INFO L87 Difference]: Start difference. First operand has 89 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 73 states have internal predecessors, (100), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-10 10:00:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:00:30,311 INFO L93 Difference]: Finished difference Result 170 states and 263 transitions. [2024-11-10 10:00:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 10:00:30,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-11-10 10:00:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:00:30,322 INFO L225 Difference]: With dead ends: 170 [2024-11-10 10:00:30,322 INFO L226 Difference]: Without dead ends: 84 [2024-11-10 10:00:30,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:00:30,330 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 10:00:30,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 10:00:30,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-10 10:00:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-10 10:00:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 68 states have internal predecessors, (92), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-10 10:00:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 120 transitions. [2024-11-10 10:00:30,433 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 120 transitions. Word has length 111 [2024-11-10 10:00:30,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:00:30,436 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 120 transitions. [2024-11-10 10:00:30,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-10 10:00:30,437 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2024-11-10 10:00:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-10 10:00:30,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:00:30,440 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:00:30,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:00:30,440 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:00:30,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:00:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1449960001, now seen corresponding path program 1 times [2024-11-10 10:00:30,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:00:30,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363144286] [2024-11-10 10:00:30,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:00:30,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:00:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:00:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:00:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 10:00:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 10:00:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 10:00:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 10:00:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 10:00:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 10:00:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:00:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:00:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:00:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 10:00:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 10:00:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 10:00:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-10 10:00:30,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:00:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363144286] [2024-11-10 10:00:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363144286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:00:30,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:00:30,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:00:30,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663619108] [2024-11-10 10:00:30,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:00:30,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:00:30,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:00:30,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:00:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:00:30,755 INFO L87 Difference]: Start difference. First operand 84 states and 120 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-10 10:00:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:00:30,798 INFO L93 Difference]: Finished difference Result 168 states and 241 transitions. [2024-11-10 10:00:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:00:30,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-11-10 10:00:30,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:00:30,801 INFO L225 Difference]: With dead ends: 168 [2024-11-10 10:00:30,802 INFO L226 Difference]: Without dead ends: 87 [2024-11-10 10:00:30,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:00:30,805 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 10:00:30,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 340 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 10:00:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-10 10:00:30,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-11-10 10:00:30,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-10 10:00:30,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 122 transitions. [2024-11-10 10:00:30,820 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 122 transitions. Word has length 111 [2024-11-10 10:00:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:00:30,822 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 122 transitions. [2024-11-10 10:00:30,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-10 10:00:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 122 transitions. [2024-11-10 10:00:30,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-10 10:00:30,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:00:30,827 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:00:30,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:00:30,828 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:00:30,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:00:30,829 INFO L85 PathProgramCache]: Analyzing trace with hash 292850334, now seen corresponding path program 1 times [2024-11-10 10:00:30,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:00:30,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957151738] [2024-11-10 10:00:30,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:00:30,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:00:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:00:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 10:00:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 10:00:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 10:00:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 10:00:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 10:00:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 10:00:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 10:00:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 10:00:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 10:00:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 10:00:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 10:00:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 10:00:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 10:00:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:00:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-10 10:00:32,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:00:32,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957151738] [2024-11-10 10:00:32,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957151738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:00:32,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:00:32,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 10:00:32,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955564633] [2024-11-10 10:00:32,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:00:32,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 10:00:32,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:00:32,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 10:00:32,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-10 10:00:32,834 INFO L87 Difference]: Start difference. First operand 86 states and 122 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-10 10:00:33,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:00:33,210 INFO L93 Difference]: Finished difference Result 252 states and 360 transitions. [2024-11-10 10:00:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:00:33,211 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2024-11-10 10:00:33,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:00:33,213 INFO L225 Difference]: With dead ends: 252 [2024-11-10 10:00:33,213 INFO L226 Difference]: Without dead ends: 169 [2024-11-10 10:00:33,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2024-11-10 10:00:33,214 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 207 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 10:00:33,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 207 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 10:00:33,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-10 10:00:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 160. [2024-11-10 10:00:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 129 states have (on average 1.3333333333333333) internal successors, (172), 129 states have internal predecessors, (172), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 10:00:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 228 transitions. [2024-11-10 10:00:33,244 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 228 transitions. Word has length 111 [2024-11-10 10:00:33,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:00:33,245 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 228 transitions. [2024-11-10 10:00:33,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-10 10:00:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 228 transitions. [2024-11-10 10:00:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-10 10:00:33,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:00:33,247 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:00:33,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:00:33,248 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:00:33,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:00:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash -395072205, now seen corresponding path program 1 times [2024-11-10 10:00:33,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:00:33,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059016069] [2024-11-10 10:00:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:00:33,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:00:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat