./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product37.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_product37.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 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:54,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:54,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:54,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:54,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:54,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:54,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:54,816 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:54,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:54,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:54,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:54,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:54,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:54,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:54,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:54,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:54,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:54,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:54,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:54,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:54,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:54,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:54,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:54,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:54,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:54,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:54,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:54,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:54,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:54,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:54,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:54,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:54,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:54,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:54,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:54,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:54,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:54,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:54,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:54,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:54,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:54,856 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:10:54,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:54,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:54,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:54,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:54,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:54,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:54,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:54,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:54,895 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:54,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:54,895 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:54,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:10:54,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:54,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:54,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:54,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:54,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:54,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:54,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:54,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:54,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:54,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:54,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:10:54,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:10:54,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:54,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:54,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:54,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:54,899 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 [2021-12-15 11:10:55,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:55,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:55,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:55,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:55,121 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:55,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2021-12-15 11:10:55,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a8aa0c7/87deee4bdf384a65b2e32fa176c04c2c/FLAG653099525 [2021-12-15 11:10:55,543 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:55,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2021-12-15 11:10:55,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a8aa0c7/87deee4bdf384a65b2e32fa176c04c2c/FLAG653099525 [2021-12-15 11:10:55,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84a8aa0c7/87deee4bdf384a65b2e32fa176c04c2c [2021-12-15 11:10:55,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:55,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:55,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:55,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:55,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:55,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:55,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3e3bcf 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 11:10:55,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:55,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:55,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:55,814 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_product37.cil.c[5071,5084] [2021-12-15 11:10:55,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:55,905 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:55,934 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_product37.cil.c[5071,5084] [2021-12-15 11:10:55,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:55,986 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:55,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55 WrapperNode [2021-12-15 11:10:55,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:55,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:55,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:55,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:55,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,028 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 256 [2021-12-15 11:10:56,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:56,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:56,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:56,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:56,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:56,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:56,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:56,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:56,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (1/1) ... [2021-12-15 11:10:56,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:56,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:10:56,084 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 11:10:56,086 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 11:10:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:10:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:10:56,114 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:10:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:10:56,115 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:10:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:10:56,115 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:10:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:10:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:10:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:10:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:10:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:10:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:10:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:10:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:10:56,118 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:10:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:10:56,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:10:56,192 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:10:56,200 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:10:56,447 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:10:56,451 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:10:56,451 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:10:56,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:56 BoogieIcfgContainer [2021-12-15 11:10:56,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:10:56,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:10:56,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:10:56,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:10:56,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:55" (1/3) ... [2021-12-15 11:10:56,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a75eff8 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 11:10:56,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:55" (2/3) ... [2021-12-15 11:10:56,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a75eff8 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 11:10:56,458 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 11:10:56,458 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2021-12-15 11:10:56,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:10:56,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:10:56,498 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:10:56,504 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 11:10:56,504 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:10:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 11:10:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:10:56,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:10:56,526 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 11:10:56,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:10:56,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:10:56,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1723855951, now seen corresponding path program 1 times [2021-12-15 11:10:56,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:10:56,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421906010] [2021-12-15 11:10:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:10:56,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:10:56,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:10:56,586 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 11:10:56,594 INFO L158 Benchmark]: Toolchain (without parser) took 1022.91ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 68.8MB in the beginning and 65.0MB in the end (delta: 3.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-12-15 11:10:56,594 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:56,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.93ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 68.5MB in the beginning and 95.3MB in the end (delta: -26.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:10:56,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.72ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:56,597 INFO L158 Benchmark]: Boogie Preprocessor took 17.55ms. Allocated memory is still 127.9MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:56,598 INFO L158 Benchmark]: RCFGBuilder took 405.96ms. Allocated memory is still 127.9MB. Free memory was 91.7MB in the beginning and 74.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:10:56,602 INFO L158 Benchmark]: TraceAbstraction took 138.14ms. Allocated memory is still 127.9MB. Free memory was 74.9MB in the beginning and 65.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:10:56,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 98.6MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.93ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 68.5MB in the beginning and 95.3MB in the end (delta: -26.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.72ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.55ms. Allocated memory is still 127.9MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.96ms. Allocated memory is still 127.9MB. Free memory was 91.7MB in the beginning and 74.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 138.14ms. Allocated memory is still 127.9MB. Free memory was 74.9MB in the beginning and 65.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. 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 11:10:56,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_product37.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 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:58,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:58,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:58,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:58,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:58,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:58,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:58,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:58,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:58,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:58,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:58,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:58,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:58,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:58,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:58,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:58,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:58,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:58,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:58,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:58,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:58,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:58,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:58,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:58,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:58,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:58,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:58,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:58,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:58,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:58,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:58,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:58,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:58,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:58,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:58,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:58,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:58,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:58,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:58,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:58,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:58,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:10:58,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:58,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:58,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:58,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:58,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:58,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:58,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:58,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:58,395 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:58,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:58,396 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:58,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:10:58,397 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:58,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:58,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:58,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:58,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:58,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:58,399 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:10:58,399 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:10:58,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:58,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:58,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:58,400 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:58,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:10:58,400 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ab30b3db91b0e47e6f9b2ed9ba465facc49148e5cdc1cad78e4808ba0c7de84 [2021-12-15 11:10:58,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:58,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:58,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:58,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:58,671 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:58,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2021-12-15 11:10:58,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a6dccd2/a7c1392dd7c242ba8b34582ff3edc310/FLAGedd209439 [2021-12-15 11:10:59,104 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:59,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product37.cil.c [2021-12-15 11:10:59,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a6dccd2/a7c1392dd7c242ba8b34582ff3edc310/FLAGedd209439 [2021-12-15 11:10:59,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a6dccd2/a7c1392dd7c242ba8b34582ff3edc310 [2021-12-15 11:10:59,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:59,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:59,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:59,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:59,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:59,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f4447b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59, skipping insertion in model container [2021-12-15 11:10:59,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:59,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:59,645 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_product37.cil.c[5071,5084] [2021-12-15 11:10:59,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:59,754 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:10:59,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:59,773 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_product37.cil.c[5071,5084] [2021-12-15 11:10:59,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:59,806 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:59,823 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_product37.cil.c[5071,5084] [2021-12-15 11:10:59,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:59,870 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:59,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59 WrapperNode [2021-12-15 11:10:59,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:59,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:59,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:59,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:59,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,924 INFO L137 Inliner]: procedures = 57, calls = 156, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 244 [2021-12-15 11:10:59,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:59,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:59,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:59,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:59,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:59,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:59,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:59,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:59,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (1/1) ... [2021-12-15 11:10:59,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:59,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:11:00,004 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 11:11:00,009 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 11:11:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:11:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:11:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:11:00,027 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:11:00,027 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:11:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:11:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:11:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-15 11:11:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:11:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:11:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:11:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:11:00,095 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:11:00,096 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:11:00,391 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:11:00,395 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:11:00,396 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:11:00,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:00 BoogieIcfgContainer [2021-12-15 11:11:00,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:11:00,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:11:00,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:11:00,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:11:00,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:59" (1/3) ... [2021-12-15 11:11:00,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d48be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:00, skipping insertion in model container [2021-12-15 11:11:00,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:59" (2/3) ... [2021-12-15 11:11:00,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d48be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:11:00, skipping insertion in model container [2021-12-15 11:11:00,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:11:00" (3/3) ... [2021-12-15 11:11:00,404 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product37.cil.c [2021-12-15 11:11:00,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:11:00,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:11:00,452 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:11:00,458 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 11:11:00,466 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:11:00,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-15 11:11:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-15 11:11:00,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:11:00,498 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 11:11:00,499 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:11:00,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:11:00,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1723855951, now seen corresponding path program 1 times [2021-12-15 11:11:00,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:11:00,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599874152] [2021-12-15 11:11:00,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:11:00,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:11:00,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:11:00,517 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 11:11:00,539 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 11:11:00,565 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 11:11:00,767 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 11:11:00,768 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 11:11:00,773 INFO L158 Benchmark]: Toolchain (without parser) took 1303.37ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 43.0MB in the beginning and 52.2MB in the end (delta: -9.2MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-12-15 11:11:00,774 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 45.1MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:11:00,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.33ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 32.2MB in the end (delta: 10.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:11:00,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.11ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 29.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:11:00,777 INFO L158 Benchmark]: Boogie Preprocessor took 48.92ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 58.5MB in the end (delta: -28.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-15 11:11:00,781 INFO L158 Benchmark]: RCFGBuilder took 419.87ms. Allocated memory is still 75.5MB. Free memory was 58.2MB in the beginning and 42.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 11:11:00,782 INFO L158 Benchmark]: TraceAbstraction took 372.74ms. Allocated memory is still 75.5MB. Free memory was 41.7MB in the beginning and 52.2MB in the end (delta: -10.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:11:00,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 45.1MB in the end (delta: 51.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.33ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 32.2MB in the end (delta: 10.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.11ms. Allocated memory is still 62.9MB. Free memory was 32.0MB in the beginning and 29.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.92ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 29.7MB in the beginning and 58.5MB in the end (delta: -28.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 419.87ms. Allocated memory is still 75.5MB. Free memory was 58.2MB in the beginning and 42.3MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 372.74ms. Allocated memory is still 75.5MB. Free memory was 41.7MB in the beginning and 52.2MB in the end (delta: -10.6MB). There was no memory consumed. 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 11:11:00,818 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