./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product40.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_spec2_product40.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 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:08:46,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:08:46,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:08:46,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:08:46,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:08:46,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:08:46,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:08:46,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:08:46,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:08:46,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:08:46,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:08:46,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:08:46,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:08:46,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:08:46,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:08:46,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:08:46,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:08:46,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:08:46,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:08:46,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:08:46,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:08:46,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:08:46,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:08:46,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:08:46,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:08:46,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:08:46,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:08:46,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:08:46,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:08:46,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:08:46,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:08:46,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:08:46,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:08:46,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:08:46,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:08:46,564 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:08:46,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:08:46,565 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:08:46,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:08:46,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:08:46,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:08:46,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:08:46,588 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:08:46,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:08:46,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:08:46,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:08:46,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:08:46,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:08:46,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:08:46,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:08:46,590 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:08:46,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:08:46,595 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:08:46,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:08:46,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:08:46,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:08:46,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:08:46,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:08:46,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:08:46,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:46,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:08:46,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:08:46,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2021-12-15 11:08:46,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:08:46,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:08:46,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:08:46,830 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:08:46,830 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:08:46,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2021-12-15 11:08:46,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd98f2586/01dfd63ffda444cdb8132b908cca01de/FLAG69a2b3f99 [2021-12-15 11:08:47,272 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:08:47,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2021-12-15 11:08:47,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd98f2586/01dfd63ffda444cdb8132b908cca01de/FLAG69a2b3f99 [2021-12-15 11:08:47,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd98f2586/01dfd63ffda444cdb8132b908cca01de [2021-12-15 11:08:47,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:08:47,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:08:47,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:47,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:08:47,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:08:47,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a16638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47, skipping insertion in model container [2021-12-15 11:08:47,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:08:47,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:47,539 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_spec2_product40.cil.c[17002,17015] [2021-12-15 11:08:47,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:47,550 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:08:47,611 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_spec2_product40.cil.c[17002,17015] [2021-12-15 11:08:47,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:47,626 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:08:47,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47 WrapperNode [2021-12-15 11:08:47,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:47,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:47,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:08:47,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:08:47,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,682 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 253 [2021-12-15 11:08:47,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:47,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:08:47,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:08:47,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:08:47,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:08:47,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:08:47,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:08:47,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:08:47,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:47,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:08:47,744 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 11:08:47,758 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 11:08:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:08:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:08:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:08:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:08:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:08:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:08:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:08:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:08:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:08:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:08:47,772 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:08:47,772 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:08:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:08:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:08:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:08:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:08:47,773 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:08:47,773 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:08:47,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:08:47,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:08:47,842 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:08:47,844 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:08:48,056 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:08:48,062 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:08:48,062 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:08:48,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:48 BoogieIcfgContainer [2021-12-15 11:08:48,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:08:48,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:08:48,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:08:48,068 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:08:48,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:47" (1/3) ... [2021-12-15 11:08:48,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c809c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:48, skipping insertion in model container [2021-12-15 11:08:48,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:47" (2/3) ... [2021-12-15 11:08:48,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c809c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:48, skipping insertion in model container [2021-12-15 11:08:48,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:48" (3/3) ... [2021-12-15 11:08:48,070 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2021-12-15 11:08:48,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:08:48,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:08:48,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:08:48,109 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 11:08:48,109 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:08:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-15 11:08:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:08:48,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:08:48,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:08:48,144 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:08:48,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:08:48,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1035852950, now seen corresponding path program 1 times [2021-12-15 11:08:48,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:08:48,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153539610] [2021-12-15 11:08:48,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:08:48,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:08:48,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:08:48,196 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 11:08:48,199 INFO L158 Benchmark]: Toolchain (without parser) took 899.45ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 50.1MB in the beginning and 66.7MB in the end (delta: -16.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 11:08:48,200 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:48,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.12ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 50.1MB in the beginning and 72.7MB in the end (delta: -22.6MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-12-15 11:08:48,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.74ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:48,202 INFO L158 Benchmark]: Boogie Preprocessor took 25.11ms. Allocated memory is still 104.9MB. Free memory was 70.3MB in the beginning and 68.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:48,203 INFO L158 Benchmark]: RCFGBuilder took 355.88ms. Allocated memory is still 104.9MB. Free memory was 68.5MB in the beginning and 77.2MB in the end (delta: -8.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-12-15 11:08:48,206 INFO L158 Benchmark]: TraceAbstraction took 132.79ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 66.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:08:48,209 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 83.9MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 25.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.12ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 50.1MB in the beginning and 72.7MB in the end (delta: -22.6MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.74ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.11ms. Allocated memory is still 104.9MB. Free memory was 70.3MB in the beginning and 68.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.88ms. Allocated memory is still 104.9MB. Free memory was 68.5MB in the beginning and 77.2MB in the end (delta: -8.6MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 132.79ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 66.7MB 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 11:08:48,236 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_spec2_product40.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 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:08:49,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:08:49,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:08:49,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:08:49,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:08:49,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:08:49,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:08:49,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:08:49,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:08:49,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:08:49,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:08:49,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:08:49,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:08:49,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:08:49,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:08:49,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:08:49,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:08:49,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:08:49,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:08:49,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:08:49,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:08:49,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:08:49,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:08:49,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:08:49,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:08:49,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:08:49,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:08:49,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:08:49,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:08:49,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:08:49,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:08:49,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:08:49,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:08:49,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:08:49,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:08:49,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:08:49,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:08:49,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:08:49,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:08:49,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:08:49,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:08:49,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:08:49,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:08:49,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:08:49,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:08:49,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:08:49,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:08:49,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:08:49,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:08:49,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:08:49,981 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:08:49,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:08:49,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:08:49,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:08:49,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:08:49,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:08:49,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:08:49,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:08:49,983 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:08:49,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:08:49,983 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:08:49,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:08:49,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:08:49,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:08:49,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:08:49,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:08:49,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:08:49,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:08:49,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:49,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:08:49,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:08:49,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:08:49,985 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:08:49,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:08:49,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:08:49,986 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:08:49,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:08:49,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:08:49,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:08:49,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2021-12-15 11:08:50,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:08:50,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:08:50,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:08:50,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:08:50,262 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:08:50,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2021-12-15 11:08:50,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c45405f3/341a563afe4b49cbb6ca888955fe3f99/FLAG39f7408e9 [2021-12-15 11:08:50,707 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:08:50,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2021-12-15 11:08:50,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c45405f3/341a563afe4b49cbb6ca888955fe3f99/FLAG39f7408e9 [2021-12-15 11:08:50,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c45405f3/341a563afe4b49cbb6ca888955fe3f99 [2021-12-15 11:08:50,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:08:50,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:08:50,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:50,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:08:50,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:08:50,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:50" (1/1) ... [2021-12-15 11:08:50,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a181b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:50, skipping insertion in model container [2021-12-15 11:08:50,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:50" (1/1) ... [2021-12-15 11:08:50,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:08:50,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:51,097 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_spec2_product40.cil.c[17002,17015] [2021-12-15 11:08:51,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:51,136 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:08:51,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:51,180 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_spec2_product40.cil.c[17002,17015] [2021-12-15 11:08:51,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:51,202 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:08:51,272 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_spec2_product40.cil.c[17002,17015] [2021-12-15 11:08:51,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:51,301 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:08:51,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51 WrapperNode [2021-12-15 11:08:51,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:51,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:51,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:08:51,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:08:51,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,373 INFO L137 Inliner]: procedures = 58, calls = 157, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 242 [2021-12-15 11:08:51,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:51,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:08:51,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:08:51,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:08:51,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:08:51,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:08:51,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:08:51,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:08:51,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (1/1) ... [2021-12-15 11:08:51,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:51,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:08:51,460 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 11:08:51,479 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 11:08:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:08:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:08:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:08:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:08:51,501 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:08:51,501 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:08:51,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:08:51,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:08:51,561 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:08:51,562 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:08:51,792 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:08:51,797 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:08:51,797 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:08:51,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:51 BoogieIcfgContainer [2021-12-15 11:08:51,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:08:51,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:08:51,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:08:51,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:08:51,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:50" (1/3) ... [2021-12-15 11:08:51,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4bfc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:51, skipping insertion in model container [2021-12-15 11:08:51,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:51" (2/3) ... [2021-12-15 11:08:51,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4bfc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:51, skipping insertion in model container [2021-12-15 11:08:51,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:51" (3/3) ... [2021-12-15 11:08:51,804 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2021-12-15 11:08:51,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:08:51,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:08:51,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:08:51,852 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 11:08:51,852 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:08:51,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 80 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-15 11:08:51,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:08:51,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:08:51,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:08:51,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:08:51,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:08:51,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1035852950, now seen corresponding path program 1 times [2021-12-15 11:08:51,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:08:51,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70481200] [2021-12-15 11:08:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:08:51,886 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:08:51,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:08:51,889 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 11:08:51,891 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 11:08:51,930 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 11:08:52,125 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 11:08:52,125 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 11:08:52,129 INFO L158 Benchmark]: Toolchain (without parser) took 1394.76ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 35.6MB in the beginning and 46.5MB in the end (delta: -10.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2021-12-15 11:08:52,129 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory was 28.5MB in the beginning and 28.4MB in the end (delta: 36.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:52,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.74ms. Allocated memory is still 60.8MB. Free memory was 35.4MB in the beginning and 28.7MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:08:52,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.74ms. Allocated memory is still 60.8MB. Free memory was 28.7MB in the beginning and 41.9MB in the end (delta: -13.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-15 11:08:52,130 INFO L158 Benchmark]: Boogie Preprocessor took 53.18ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 40.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:52,130 INFO L158 Benchmark]: RCFGBuilder took 367.93ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 40.3MB in the beginning and 55.8MB in the end (delta: -15.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-12-15 11:08:52,131 INFO L158 Benchmark]: TraceAbstraction took 327.19ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 46.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:08:52,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 46.1MB. Free memory was 28.5MB in the beginning and 28.4MB in the end (delta: 36.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 569.74ms. Allocated memory is still 60.8MB. Free memory was 35.4MB in the beginning and 28.7MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.74ms. Allocated memory is still 60.8MB. Free memory was 28.7MB in the beginning and 41.9MB in the end (delta: -13.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.18ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 40.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 367.93ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 40.3MB in the beginning and 55.8MB in the end (delta: -15.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 327.19ms. Allocated memory is still 77.6MB. Free memory was 55.4MB in the beginning and 46.5MB in the end (delta: 8.9MB). 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 11:08:52,162 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable