./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/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/product-lines/minepump_spec5_product36.cil.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.graphml --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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:54,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:54,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:54,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:54,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:54,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:54,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:54,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:54,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:54,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:54,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:54,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:54,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:54,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:54,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:54,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:54,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:54,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:54,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:54,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:54,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:54,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:54,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:54,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:54,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:54,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:54,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:54,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:54,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:54,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:54,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:54,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:54,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:55,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:55,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:55,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:55,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:55,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:55,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:55,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:55,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:55,006 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:10:55,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:55,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:55,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:55,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:55,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:55,038 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:55,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:55,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:55,038 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:55,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:55,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:55,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:10:55,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:55,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:55,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:55,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:55,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:55,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:55,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:55,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:55,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:55,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:55,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:55,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:55,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:55,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:55,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:55,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:55,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:10:55,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:10:55,043 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:55,044 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:55,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:55,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:55,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2021-12-15 11:10:55,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:55,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:55,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:55,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:55,303 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:55,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-12-15 11:10:55,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843504e13/e1bd5a737e1149a38455227363168fa9/FLAGcf22874ae [2021-12-15 11:10:55,797 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:55,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-12-15 11:10:55,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843504e13/e1bd5a737e1149a38455227363168fa9/FLAGcf22874ae [2021-12-15 11:10:55,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/843504e13/e1bd5a737e1149a38455227363168fa9 [2021-12-15 11:10:55,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:55,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:55,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:55,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:55,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:55,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:55,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d936a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55, skipping insertion in model container [2021-12-15 11:10:55,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:55,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:55,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:56,025 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-15 11:10:56,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:56,163 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:56,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-15 11:10:56,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:56,287 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:56,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56 WrapperNode [2021-12-15 11:10:56,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:56,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:56,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:56,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:56,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,369 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 238 [2021-12-15 11:10:56,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:56,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:56,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:56,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:56,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:56,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:56,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:56,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:56,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (1/1) ... [2021-12-15 11:10:56,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:56,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:10:56,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:10:56,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:10:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:10:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:10:56,495 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:10:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:10:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:10:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:10:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:10:56,496 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:10:56,496 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:10:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:10:56,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:10:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:10:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:10:56,497 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:10:56,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:10:56,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:10:56,578 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:10:56,579 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:10:56,792 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:10:56,798 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:10:56,798 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:10:56,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:56 BoogieIcfgContainer [2021-12-15 11:10:56,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:10:56,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:10:56,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:10:56,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:10:56,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:55" (1/3) ... [2021-12-15 11:10:56,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419407f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:56, skipping insertion in model container [2021-12-15 11:10:56,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:56" (2/3) ... [2021-12-15 11:10:56,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419407f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:56, skipping insertion in model container [2021-12-15 11:10:56,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:56" (3/3) ... [2021-12-15 11:10:56,818 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2021-12-15 11:10:56,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:10:56,838 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:10:56,903 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:10:56,908 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:10:56,908 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:10:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.373134328358209) internal successors, (92), 73 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-15 11:10:56,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:10:56,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:10:56,935 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:10:56,936 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:10:56,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:10:56,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1797931529, now seen corresponding path program 1 times [2021-12-15 11:10:56,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:10:56,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441544726] [2021-12-15 11:10:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:10:56,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:10:57,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:10:57,000 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:10:57,005 INFO L158 Benchmark]: Toolchain (without parser) took 1182.73ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 48.5MB in the beginning and 69.9MB in the end (delta: -21.5MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:57,006 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 81.8MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:57,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.72ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 48.3MB in the beginning and 74.6MB in the end (delta: -26.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-12-15 11:10:57,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.39ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 72.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:57,008 INFO L158 Benchmark]: Boogie Preprocessor took 50.57ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:57,008 INFO L158 Benchmark]: RCFGBuilder took 377.88ms. Allocated memory is still 107.0MB. Free memory was 70.4MB in the beginning and 79.8MB in the end (delta: -9.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-12-15 11:10:57,009 INFO L158 Benchmark]: TraceAbstraction took 202.85ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 69.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:10:57,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 81.8MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.72ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 48.3MB in the beginning and 74.6MB in the end (delta: -26.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.39ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 72.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.57ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.88ms. Allocated memory is still 107.0MB. Free memory was 70.4MB in the beginning and 79.8MB in the end (delta: -9.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 202.85ms. Allocated memory is still 107.0MB. Free memory was 79.1MB in the beginning and 69.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:10:57,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/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/product-lines/minepump_spec5_product36.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:58,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:58,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:59,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:59,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:59,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:59,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:59,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:59,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:59,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:59,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:59,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:59,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:59,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:59,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:59,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:59,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:59,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:59,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:59,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:59,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:59,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:59,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:59,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:59,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:59,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:59,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:59,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:59,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:59,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:59,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:59,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:59,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:59,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:59,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:59,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:59,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:59,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:59,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:59,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:59,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:59,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:10:59,135 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:59,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:59,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:59,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:59,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:59,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:59,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:59,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:59,139 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:59,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:59,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:59,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:59,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:59,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:59,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:59,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:59,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:10:59,141 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:10:59,142 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:10:59,142 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:59,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:59,142 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:59,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:59,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:59,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:59,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:59,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:59,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:59,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:59,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:59,144 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:10:59,144 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:10:59,145 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:59,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:59,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:59,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:59,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:10:59,146 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06101f936f6436bac89af152aefce31c84cfc20ba80a5adfcf1af02faa2d4f3b [2021-12-15 11:10:59,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:59,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:59,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:59,430 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:59,431 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:59,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-12-15 11:10:59,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43db9149/9a0d1101a352444ea49a8a3d29726d87/FLAGe5950d20b [2021-12-15 11:11:00,004 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:11:00,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2021-12-15 11:11:00,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43db9149/9a0d1101a352444ea49a8a3d29726d87/FLAGe5950d20b [2021-12-15 11:11:00,331 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b43db9149/9a0d1101a352444ea49a8a3d29726d87 [2021-12-15 11:11:00,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:11:00,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:11:00,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:11:00,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:11:00,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:11:00,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:00,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664ae1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00, skipping insertion in model container [2021-12-15 11:11:00,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:00,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:11:00,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:11:00,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-15 11:11:00,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:00,706 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:11:00,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:11:00,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-15 11:11:00,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:00,823 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:11:00,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c[2141,2154] [2021-12-15 11:11:00,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:11:00,909 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:11:00,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00 WrapperNode [2021-12-15 11:11:00,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:11:00,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:11:00,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:11:00,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:11:00,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:00,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:00,994 INFO L137 Inliner]: procedures = 58, calls = 155, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 228 [2021-12-15 11:11:00,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:11:00,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:11:00,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:11:00,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:11:01,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:11:01,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:11:01,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:11:01,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:11:01,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (1/1) ... [2021-12-15 11:11:01,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:11:01,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:11:01,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:11:01,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:11:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:11:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:11:01,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:11:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:11:01,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:11:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:11:01,125 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:11:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:11:01,125 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:11:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:11:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:11:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:11:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:11:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:11:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:11:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:11:01,213 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:11:01,214 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:11:01,471 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:11:01,478 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:11:01,478 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:11:01,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:01 BoogieIcfgContainer [2021-12-15 11:11:01,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:11:01,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:11:01,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:11:01,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:11:01,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:11:00" (1/3) ... [2021-12-15 11:11:01,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c05ba53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:01, skipping insertion in model container [2021-12-15 11:11:01,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:11:00" (2/3) ... [2021-12-15 11:11:01,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c05ba53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:01, skipping insertion in model container [2021-12-15 11:11:01,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:01" (3/3) ... [2021-12-15 11:11:01,486 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2021-12-15 11:11:01,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:11:01,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:11:01,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:11:01,542 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:11:01,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:11:01,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.373134328358209) internal successors, (92), 73 states have internal predecessors, (92), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-15 11:11:01,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:11:01,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:11:01,570 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:11:01,571 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:11:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:11:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1797931529, now seen corresponding path program 1 times [2021-12-15 11:11:01,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:11:01,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048409926] [2021-12-15 11:11:01,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:11:01,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:11:01,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:11:01,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 11:11:01,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 11:11:01,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 11:11:01,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 11:11:01,841 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:11:01,845 INFO L158 Benchmark]: Toolchain (without parser) took 1510.59ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 26.3MB in the end (delta: 14.5MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-12-15 11:11:01,846 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 36.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:11:01,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.52ms. Allocated memory is still 56.6MB. Free memory was 40.6MB in the beginning and 27.9MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:11:01,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.15ms. Allocated memory is still 56.6MB. Free memory was 27.7MB in the beginning and 39.2MB in the end (delta: -11.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:01,847 INFO L158 Benchmark]: Boogie Preprocessor took 51.05ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 37.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:01,848 INFO L158 Benchmark]: RCFGBuilder took 431.57ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 35.2MB in the end (delta: 2.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-12-15 11:11:01,849 INFO L158 Benchmark]: TraceAbstraction took 363.28ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 26.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:11:01,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 36.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 573.52ms. Allocated memory is still 56.6MB. Free memory was 40.6MB in the beginning and 27.9MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.15ms. Allocated memory is still 56.6MB. Free memory was 27.7MB in the beginning and 39.2MB in the end (delta: -11.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.05ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 37.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.57ms. Allocated memory is still 56.6MB. Free memory was 37.5MB in the beginning and 35.2MB in the end (delta: 2.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 363.28ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 26.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:11:01,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable