./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-programs/Problem101_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/eca-programs/Problem101_label07.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34b274a9d3f9e565038ffe944b33383cd0c42b036a481bebe099c4917380c142 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:35:03,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:35:03,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:35:03,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:35:03,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:35:04,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:35:04,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:35:04,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:35:04,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:35:04,027 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:35:04,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:35:04,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:35:04,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:35:04,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:35:04,028 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:35:04,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:35:04,029 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:35:04,029 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:35:04,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:35:04,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:35:04,029 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:35:04,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:35:04,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:35:04,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:35:04,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:35:04,034 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:35:04,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:35:04,034 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:35:04,034 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:35:04,034 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:35:04,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:35:04,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:35:04,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:35:04,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:35:04,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:35:04,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:35:04,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:35:04,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:35:04,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:35:04,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:35:04,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:35:04,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:35:04,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b274a9d3f9e565038ffe944b33383cd0c42b036a481bebe099c4917380c142 [2024-11-16 04:35:04,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:35:04,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:35:04,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:35:04,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:35:04,276 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:35:04,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label07.c [2024-11-16 04:35:05,575 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:35:07,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:35:07,055 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label07.c [2024-11-16 04:35:07,163 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4df137b85/399c79669fba4b9882e680764e135d54/FLAGa64464907 [2024-11-16 04:35:07,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4df137b85/399c79669fba4b9882e680764e135d54 [2024-11-16 04:35:07,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:35:07,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:35:07,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:35:07,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:35:07,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:35:07,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:35:07" (1/1) ... [2024-11-16 04:35:07,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@443d321c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:07, skipping insertion in model container [2024-11-16 04:35:07,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:35:07" (1/1) ... [2024-11-16 04:35:07,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:35:14,910 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/eca-programs/Problem101_label07.c[2769526,2769539] [2024-11-16 04:35:14,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:35:14,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:35:19,104 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/eca-programs/Problem101_label07.c[2769526,2769539] [2024-11-16 04:35:19,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:35:19,791 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:35:19,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19 WrapperNode [2024-11-16 04:35:19,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:35:19,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:35:19,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:35:19,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:35:19,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:20,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:22,505 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83825 [2024-11-16 04:35:22,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:35:22,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:35:22,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:35:22,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:35:22,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:22,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:22,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:23,076 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:35:23,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:23,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:24,007 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:24,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:24,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:24,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:24,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:35:24,413 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:35:24,414 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:35:24,414 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:35:24,414 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (1/1) ... [2024-11-16 04:35:24,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:35:24,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:35:24,446 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) [2024-11-16 04:35:24,447 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 [2024-11-16 04:35:24,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:35:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:35:24,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:35:24,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:35:24,620 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:35:24,622 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:35:56,369 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L27459: havoc calculate_output17_#t~ret67#1; [2024-11-16 04:35:56,369 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L30632: havoc calculate_output19_#t~ret69#1; [2024-11-16 04:35:56,371 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L33846: havoc calculate_output21_#t~ret71#1; [2024-11-16 04:35:56,371 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L37035: havoc calculate_output23_#t~ret73#1; [2024-11-16 04:35:56,371 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L40248: havoc calculate_output25_#t~ret75#1; [2024-11-16 04:35:56,371 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L43463: havoc calculate_output27_#t~ret77#1; [2024-11-16 04:35:56,372 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3364: havoc calculate_output2_#t~ret52#1; [2024-11-16 04:35:56,372 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6555: havoc calculate_output4_#t~ret54#1; [2024-11-16 04:35:56,372 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L49905: havoc calculate_output31_#t~ret81#1; [2024-11-16 04:35:56,372 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L46740: havoc calculate_output29_#t~ret79#1; [2024-11-16 04:35:56,372 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L53119: havoc calculate_output33_#t~ret83#1; [2024-11-16 04:35:56,372 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L9786: havoc calculate_output6_#t~ret56#1; [2024-11-16 04:35:56,373 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L12971: havoc calculate_output8_#t~ret58#1; [2024-11-16 04:35:56,373 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L56310: havoc calculate_output35_#t~ret85#1; [2024-11-16 04:35:56,373 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L69022: havoc calculate_output43_#t~ret93#1; [2024-11-16 04:35:56,373 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L59509: havoc calculate_output37_#t~ret87#1; [2024-11-16 04:35:56,374 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L72213: havoc calculate_output45_#t~ret95#1; [2024-11-16 04:35:56,374 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L65876: havoc calculate_output41_#t~ret91#1; [2024-11-16 04:35:56,374 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L62706: havoc calculate_output39_#t~ret89#1; [2024-11-16 04:35:56,374 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L16214: havoc calculate_output10_#t~ret60#1; [2024-11-16 04:35:56,375 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L19397: havoc calculate_output12_#t~ret62#1; [2024-11-16 04:35:56,375 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L22606: havoc calculate_output14_#t~ret64#1; [2024-11-16 04:35:56,375 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L25845: havoc calculate_output16_#t~ret66#1; [2024-11-16 04:35:56,375 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L29049: havoc calculate_output18_#t~ret68#1; [2024-11-16 04:35:56,376 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L32227: havoc calculate_output20_#t~ret70#1; [2024-11-16 04:35:56,376 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L35468: havoc calculate_output22_#t~ret72#1; [2024-11-16 04:35:56,376 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L38645: havoc calculate_output24_#t~ret74#1; [2024-11-16 04:35:56,376 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L41829: havoc calculate_output26_#t~ret76#1; [2024-11-16 04:35:56,377 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1741: havoc calculate_output_#t~ret51#1; [2024-11-16 04:35:56,377 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L45089: havoc calculate_output28_#t~ret78#1; [2024-11-16 04:35:56,377 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4956: havoc calculate_output3_#t~ret53#1; [2024-11-16 04:35:56,377 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L48322: havoc calculate_output30_#t~ret80#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L8180: havoc calculate_output5_#t~ret55#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L51522: havoc calculate_output32_#t~ret82#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L54706: havoc calculate_output34_#t~ret84#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L11375: havoc calculate_output7_#t~ret57#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L57910: havoc calculate_output36_#t~ret86#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L70601: havoc calculate_output44_#t~ret94#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L14590: havoc calculate_output9_#t~ret59#1; [2024-11-16 04:35:56,378 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L67445: havoc calculate_output42_#t~ret92#1; [2024-11-16 04:35:56,379 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L61110: havoc calculate_output38_#t~ret88#1; [2024-11-16 04:35:56,379 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L17796: havoc calculate_output11_#t~ret61#1; [2024-11-16 04:35:56,379 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L64306: havoc calculate_output40_#t~ret90#1; [2024-11-16 04:35:56,380 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L21029: havoc calculate_output13_#t~ret63#1; [2024-11-16 04:35:56,380 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L24220: havoc calculate_output15_#t~ret65#1; [2024-11-16 04:35:57,761 INFO L? ?]: Removed 10238 outVars from TransFormulas that were not future-live. [2024-11-16 04:35:57,761 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:35:57,936 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:35:57,937 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:35:57,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:57 BoogieIcfgContainer [2024-11-16 04:35:57,941 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:35:57,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:35:57,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:35:57,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:35:57,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:35:07" (1/3) ... [2024-11-16 04:35:57,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b498b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:35:57, skipping insertion in model container [2024-11-16 04:35:57,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:35:19" (2/3) ... [2024-11-16 04:35:57,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b498b97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:35:57, skipping insertion in model container [2024-11-16 04:35:57,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:35:57" (3/3) ... [2024-11-16 04:35:57,959 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label07.c [2024-11-16 04:35:57,987 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:35:57,990 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:35:58,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:35:58,312 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;@3c4c82af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:35:58,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:35:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 10260 states, 10258 states have (on average 1.9889842074478457) internal successors, (20403), 10259 states have internal predecessors, (20403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:35:59,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10107 [2024-11-16 04:35:59,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:35:59,095 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:35:59,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:35:59,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:35:59,112 INFO L85 PathProgramCache]: Analyzing trace with hash 948930695, now seen corresponding path program 1 times [2024-11-16 04:35:59,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:35:59,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735518222] [2024-11-16 04:35:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:35:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:36:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:36:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:36:21,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:36:21,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735518222] [2024-11-16 04:36:21,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735518222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:36:21,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:36:21,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:36:21,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261205270] [2024-11-16 04:36:21,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:36:21,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:36:21,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:36:21,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:36:21,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:36:21,619 INFO L87 Difference]: Start difference. First operand has 10260 states, 10258 states have (on average 1.9889842074478457) internal successors, (20403), 10259 states have internal predecessors, (20403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3368.6666666666665) internal successors, (10106), 2 states have internal predecessors, (10106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)