./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product63.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_spec4_product63.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 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:28,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:28,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:28,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:28,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:28,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:28,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:28,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:28,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:28,057 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:28,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:28,059 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:28,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:28,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:28,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:28,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:28,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:28,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:28,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:28,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:28,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:28,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:28,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:28,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:28,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:28,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:28,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:28,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:28,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:28,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:28,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:28,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:28,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:28,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:28,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:28,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:28,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:28,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:28,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:28,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:28,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:28,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:10:28,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:28,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:28,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:28,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:28,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:28,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:28,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:28,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:28,134 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:28,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:28,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:28,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:10:28,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:28,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:28,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:28,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:28,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:28,137 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:28,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:28,137 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:28,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:28,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:28,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:28,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:28,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:28,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:28,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:28,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:28,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:10:28,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:10:28,140 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:28,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:28,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:28,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:28,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d [2021-12-15 11:10:28,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:28,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:28,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:28,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:28,408 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:28,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2021-12-15 11:10:28,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e118ec36/850358b4b3ef402bb5d281586c87c7b3/FLAG97f7e7ef6 [2021-12-15 11:10:28,892 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:28,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2021-12-15 11:10:28,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e118ec36/850358b4b3ef402bb5d281586c87c7b3/FLAG97f7e7ef6 [2021-12-15 11:10:28,920 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e118ec36/850358b4b3ef402bb5d281586c87c7b3 [2021-12-15 11:10:28,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:28,924 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:28,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:28,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:28,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:28,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:28" (1/1) ... [2021-12-15 11:10:28,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fed4509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:28, skipping insertion in model container [2021-12-15 11:10:28,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:28" (1/1) ... [2021-12-15 11:10:28,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:28,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:29,167 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_spec4_product63.cil.c[15018,15031] [2021-12-15 11:10:29,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:29,192 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:29,271 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_spec4_product63.cil.c[15018,15031] [2021-12-15 11:10:29,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:29,330 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:29,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29 WrapperNode [2021-12-15 11:10:29,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:29,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:29,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:29,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:29,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,403 INFO L137 Inliner]: procedures = 58, calls = 162, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 294 [2021-12-15 11:10:29,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:29,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:29,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:29,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:29,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:29,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:29,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:29,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:29,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (1/1) ... [2021-12-15 11:10:29,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:29,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:10:29,478 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 11:10:29,490 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 11:10:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:10:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:10:29,524 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:10:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:10:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:10:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:10:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:10:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:10:29,525 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:10:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:10:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:10:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:10:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:10:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:10:29,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:10:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:10:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:10:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:10:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:10:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:10:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:10:29,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:10:29,611 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:10:29,613 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:10:29,878 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:10:29,885 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:10:29,886 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:10:29,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:29 BoogieIcfgContainer [2021-12-15 11:10:29,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:10:29,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:10:29,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:10:29,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:10:29,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:28" (1/3) ... [2021-12-15 11:10:29,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195c4b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:29, skipping insertion in model container [2021-12-15 11:10:29,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:29" (2/3) ... [2021-12-15 11:10:29,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195c4b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:29, skipping insertion in model container [2021-12-15 11:10:29,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:29" (3/3) ... [2021-12-15 11:10:29,903 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2021-12-15 11:10:29,907 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:10:29,907 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:10:29,942 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:10:29,947 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 11:10:29,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:10:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 79 states have (on average 1.379746835443038) internal successors, (109), 90 states have internal predecessors, (109), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2021-12-15 11:10:29,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-15 11:10:29,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:10:29,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:10:29,978 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:10:29,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:10:29,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1070951928, now seen corresponding path program 1 times [2021-12-15 11:10:29,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:10:29,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737883201] [2021-12-15 11:10:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:10:29,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:10:30,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:10:30,042 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 11:10:30,054 INFO L158 Benchmark]: Toolchain (without parser) took 1129.64ms. Allocated memory is still 96.5MB. Free memory was 58.4MB in the beginning and 39.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:30,056 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:30,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.04ms. Allocated memory is still 96.5MB. Free memory was 58.4MB in the beginning and 71.4MB in the end (delta: -13.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-12-15 11:10:30,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.56ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 68.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:30,059 INFO L158 Benchmark]: Boogie Preprocessor took 23.58ms. Allocated memory is still 96.5MB. Free memory was 68.5MB in the beginning and 66.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:30,060 INFO L158 Benchmark]: RCFGBuilder took 459.69ms. Allocated memory is still 96.5MB. Free memory was 66.7MB in the beginning and 49.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:10:30,061 INFO L158 Benchmark]: TraceAbstraction took 163.77ms. Allocated memory is still 96.5MB. Free memory was 49.2MB in the beginning and 39.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:10:30,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.04ms. Allocated memory is still 96.5MB. Free memory was 58.4MB in the beginning and 71.4MB in the end (delta: -13.0MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.56ms. Allocated memory is still 96.5MB. Free memory was 70.9MB in the beginning and 68.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.58ms. Allocated memory is still 96.5MB. Free memory was 68.5MB in the beginning and 66.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.69ms. Allocated memory is still 96.5MB. Free memory was 66.7MB in the beginning and 49.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 163.77ms. Allocated memory is still 96.5MB. Free memory was 49.2MB in the beginning and 39.4MB in the end (delta: 9.8MB). 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 11:10:30,111 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_spec4_product63.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 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:10:32,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:10:32,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:10:32,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:10:32,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:10:32,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:10:32,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:10:32,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:10:32,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:10:32,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:10:32,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:10:32,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:10:32,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:10:32,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:10:32,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:10:32,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:10:32,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:10:32,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:10:32,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:10:32,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:10:32,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:10:32,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:10:32,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:10:32,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:10:32,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:10:32,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:10:32,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:10:32,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:10:32,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:10:32,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:10:32,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:10:32,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:10:32,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:10:32,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:10:32,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:10:32,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:10:32,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:10:32,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:10:32,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:10:32,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:10:32,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:10:32,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:10:32,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:10:32,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:10:32,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:10:32,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:10:32,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:10:32,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:10:32,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:10:32,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:10:32,195 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:10:32,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:10:32,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:10:32,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:10:32,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:10:32,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:10:32,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:10:32,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:10:32,197 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:10:32,197 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:10:32,198 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:10:32,198 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:10:32,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:10:32,198 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:10:32,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:10:32,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:10:32,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:10:32,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:10:32,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:32,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:10:32,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:10:32,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:10:32,208 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:10:32,209 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:10:32,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:10:32,209 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:10:32,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:10:32,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:10:32,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:10:32,210 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c7779f94f1738e754b88f9a8a8e36de7065a4e94578f4135106bd0ff9ddb13d [2021-12-15 11:10:32,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:10:32,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:10:32,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:10:32,541 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:10:32,541 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:10:32,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2021-12-15 11:10:32,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f89029ae/2ae826902cd54cd59b520b036014a39e/FLAGd5747eb7f [2021-12-15 11:10:33,033 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:10:33,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product63.cil.c [2021-12-15 11:10:33,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f89029ae/2ae826902cd54cd59b520b036014a39e/FLAGd5747eb7f [2021-12-15 11:10:33,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f89029ae/2ae826902cd54cd59b520b036014a39e [2021-12-15 11:10:33,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:10:33,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:10:33,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:33,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:10:33,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:10:33,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66126ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33, skipping insertion in model container [2021-12-15 11:10:33,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:10:33,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:33,696 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_spec4_product63.cil.c[15018,15031] [2021-12-15 11:10:33,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:33,738 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:10:33,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:10:33,782 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_spec4_product63.cil.c[15018,15031] [2021-12-15 11:10:33,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:33,824 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:10:33,863 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_spec4_product63.cil.c[15018,15031] [2021-12-15 11:10:33,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:10:33,887 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:10:33,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33 WrapperNode [2021-12-15 11:10:33,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:10:33,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:33,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:10:33,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:10:33,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,932 INFO L137 Inliner]: procedures = 60, calls = 162, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 280 [2021-12-15 11:10:33,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:10:33,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:10:33,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:10:33,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:10:33,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:10:33,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:10:33,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:10:33,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:10:33,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (1/1) ... [2021-12-15 11:10:33,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:10:33,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:10:34,008 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 11:10:34,015 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 11:10:34,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:10:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:10:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:10:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:10:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:10:34,044 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:10:34,044 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:10:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:10:34,045 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:10:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:10:34,045 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:10:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:10:34,045 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:10:34,046 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:10:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:10:34,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:10:34,046 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:10:34,046 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:10:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:10:34,047 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:10:34,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:10:34,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:10:34,122 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:10:34,124 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:10:34,439 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:10:34,445 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:10:34,445 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:10:34,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:34 BoogieIcfgContainer [2021-12-15 11:10:34,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:10:34,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:10:34,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:10:34,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:10:34,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:10:33" (1/3) ... [2021-12-15 11:10:34,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1365a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:34, skipping insertion in model container [2021-12-15 11:10:34,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:10:33" (2/3) ... [2021-12-15 11:10:34,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1365a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:10:34, skipping insertion in model container [2021-12-15 11:10:34,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:10:34" (3/3) ... [2021-12-15 11:10:34,465 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2021-12-15 11:10:34,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:10:34,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:10:34,516 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:10:34,522 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 11:10:34,523 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:10:34,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 79 states have (on average 1.379746835443038) internal successors, (109), 90 states have internal predecessors, (109), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2021-12-15 11:10:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-15 11:10:34,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:10:34,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:10:34,560 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:10:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:10:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1070951928, now seen corresponding path program 1 times [2021-12-15 11:10:34,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:10:34,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127916446] [2021-12-15 11:10:34,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:10:34,581 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:10:34,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:10:34,587 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 11:10:34,631 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 11:10:34,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 11:10:34,846 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 11:10:34,847 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 11:10:34,853 INFO L158 Benchmark]: Toolchain (without parser) took 1445.62ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 42.1MB in the end (delta: -7.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-12-15 11:10:34,854 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:34,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.97ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.5MB in the beginning and 37.6MB in the end (delta: -3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:10:34,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.51ms. Allocated memory is still 69.2MB. Free memory was 37.4MB in the beginning and 34.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:10:34,856 INFO L158 Benchmark]: Boogie Preprocessor took 38.79ms. Allocated memory is still 69.2MB. Free memory was 34.8MB in the beginning and 51.9MB in the end (delta: -17.0MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2021-12-15 11:10:34,860 INFO L158 Benchmark]: RCFGBuilder took 474.16ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 34.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:10:34,861 INFO L158 Benchmark]: TraceAbstraction took 399.16ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 42.1MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:10:34,866 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 56.6MB. Free memory was 38.6MB in the beginning and 38.6MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.97ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 34.5MB in the beginning and 37.6MB in the end (delta: -3.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.51ms. Allocated memory is still 69.2MB. Free memory was 37.4MB in the beginning and 34.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.79ms. Allocated memory is still 69.2MB. Free memory was 34.8MB in the beginning and 51.9MB in the end (delta: -17.0MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 474.16ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 34.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 399.16ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 42.1MB in the end (delta: -8.0MB). 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 11:10:34,905 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