./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product31.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_product31.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 bda183060f847dd51d7e0728c1fd62bc6790c04aa5197b907e94467526762377 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:08:41,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:08:41,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:08:41,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:08:41,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:08:41,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:08:41,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:08:41,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:08:41,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:08:41,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:08:41,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:08:41,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:08:41,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:08:41,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:08:41,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:08:41,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:08:41,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:08:41,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:08:41,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:08:41,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:08:41,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:08:41,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:08:41,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:08:41,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:08:41,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:08:41,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:08:41,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:08:41,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:08:41,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:08:41,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:08:41,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:08:41,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:08:41,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:08:41,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:08:41,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:08:41,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:08:41,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:08:41,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:08:41,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:08:41,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:08:41,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:08:41,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:08:41,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:08:41,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:08:41,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:08:41,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:08:41,818 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:08:41,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:08:41,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:08:41,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:08:41,820 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:08:41,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:08:41,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:08:41,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:08:41,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:08:41,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:08:41,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:08:41,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:08:41,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:08:41,822 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:08:41,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:08:41,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:08:41,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:08:41,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:08:41,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:08:41,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:08:41,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:41,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:08:41,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:08:41,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:08:41,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:08:41,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:08:41,824 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:08:41,824 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:08:41,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:08:41,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:08:41,825 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda183060f847dd51d7e0728c1fd62bc6790c04aa5197b907e94467526762377 [2021-12-15 11:08:42,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:08:42,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:08:42,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:08:42,088 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:08:42,089 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:08:42,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2021-12-15 11:08:42,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55659ad5/1222bac35d1d4f09a1445a8754e481d4/FLAG5d04facec [2021-12-15 11:08:42,645 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:08:42,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2021-12-15 11:08:42,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55659ad5/1222bac35d1d4f09a1445a8754e481d4/FLAG5d04facec [2021-12-15 11:08:43,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c55659ad5/1222bac35d1d4f09a1445a8754e481d4 [2021-12-15 11:08:43,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:08:43,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:08:43,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:43,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:08:43,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:08:43,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3b755a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43, skipping insertion in model container [2021-12-15 11:08:43,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:08:43,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:43,376 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_product31.cil.c[2627,2640] [2021-12-15 11:08:43,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:43,477 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:08:43,507 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_product31.cil.c[2627,2640] [2021-12-15 11:08:43,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:43,603 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:08:43,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43 WrapperNode [2021-12-15 11:08:43,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:43,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:43,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:08:43,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:08:43,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,650 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 235 [2021-12-15 11:08:43,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:43,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:08:43,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:08:43,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:08:43,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:08:43,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:08:43,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:08:43,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:08:43,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (1/1) ... [2021-12-15 11:08:43,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:43,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:08:43,737 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 11:08:43,759 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 11:08:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:08:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:08:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:08:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:08:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:08:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:08:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:08:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:08:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:08:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:08:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:08:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:08:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:08:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:08:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:08:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:08:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:08:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:08:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:08:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:08:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:08:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:08:43,856 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:08:43,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:08:44,133 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:08:44,138 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:08:44,138 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:08:44,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:44 BoogieIcfgContainer [2021-12-15 11:08:44,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:08:44,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:08:44,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:08:44,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:08:44,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:43" (1/3) ... [2021-12-15 11:08:44,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781be0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:44, skipping insertion in model container [2021-12-15 11:08:44,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:43" (2/3) ... [2021-12-15 11:08:44,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6781be0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:08:44, skipping insertion in model container [2021-12-15 11:08:44,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:44" (3/3) ... [2021-12-15 11:08:44,146 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2021-12-15 11:08:44,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:08:44,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:08:44,195 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:08:44,204 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 11:08:44,204 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:08:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 79 states have internal predecessors, (96), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-15 11:08:44,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:08:44,232 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:08:44,232 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 11:08:44,233 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:08:44,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:08:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash -255252744, now seen corresponding path program 1 times [2021-12-15 11:08:44,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:08:44,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784768482] [2021-12-15 11:08:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:08:44,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:08:44,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:08:44,289 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 11:08:44,298 INFO L158 Benchmark]: Toolchain (without parser) took 1145.40ms. Allocated memory is still 109.1MB. Free memory was 75.5MB in the beginning and 45.8MB in the end (delta: 29.7MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:44,300 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 79.7MB. Free memory was 48.8MB in the beginning and 48.8MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:44,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.23ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 76.0MB in the end (delta: -799.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:08:44,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.00ms. Allocated memory is still 109.1MB. Free memory was 76.0MB in the beginning and 73.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:44,302 INFO L158 Benchmark]: Boogie Preprocessor took 41.30ms. Allocated memory is still 109.1MB. Free memory was 73.9MB in the beginning and 72.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:44,303 INFO L158 Benchmark]: RCFGBuilder took 447.11ms. Allocated memory is still 109.1MB. Free memory was 72.4MB in the beginning and 56.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-15 11:08:44,308 INFO L158 Benchmark]: TraceAbstraction took 155.00ms. Allocated memory is still 109.1MB. Free memory was 55.7MB in the beginning and 45.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:08:44,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 79.7MB. Free memory was 48.8MB in the beginning and 48.8MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.23ms. Allocated memory is still 109.1MB. Free memory was 75.2MB in the beginning and 76.0MB in the end (delta: -799.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.00ms. Allocated memory is still 109.1MB. Free memory was 76.0MB in the beginning and 73.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.30ms. Allocated memory is still 109.1MB. Free memory was 73.9MB in the beginning and 72.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.11ms. Allocated memory is still 109.1MB. Free memory was 72.4MB in the beginning and 56.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 155.00ms. Allocated memory is still 109.1MB. Free memory was 55.7MB in the beginning and 45.8MB 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 11:08:44,339 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_product31.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 bda183060f847dd51d7e0728c1fd62bc6790c04aa5197b907e94467526762377 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:08:46,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:08:46,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:08:46,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:08:46,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:08:46,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:08:46,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:08:46,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:08:46,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:08:46,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:08:46,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:08:46,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:08:46,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:08:46,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:08:46,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:08:46,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:08:46,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:08:46,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:08:46,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:08:46,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:08:46,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:08:46,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:08:46,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:08:46,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:08:46,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:08:46,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:08:46,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:08:46,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:08:46,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:08:46,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:08:46,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:08:46,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:08:46,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:08:46,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:08:46,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:08:46,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:08:46,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:08:46,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:08:46,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:08:46,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:08:46,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:08:46,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:08:46,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:08:46,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:08:46,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:08:46,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:08:46,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:08:46,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:08:46,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:08:46,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:08:46,402 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:08:46,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:08:46,402 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:08:46,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:08:46,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:08:46,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:08:46,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:08:46,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:08:46,403 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:08:46,404 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:08:46,404 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:08:46,404 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:08:46,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:08:46,404 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:08:46,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:08:46,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:08:46,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:08:46,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:08:46,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:46,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:08:46,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:08:46,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:08:46,406 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:08:46,407 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:08:46,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:08:46,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:08:46,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:08:46,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:08:46,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:08:46,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda183060f847dd51d7e0728c1fd62bc6790c04aa5197b907e94467526762377 [2021-12-15 11:08:46,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:08:46,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:08:46,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:08:46,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:08:46,731 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:08:46,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2021-12-15 11:08:46,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8791af145/77b625f3918e4b719553469b652e7dfa/FLAG9b0b47d34 [2021-12-15 11:08:47,313 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:08:47,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product31.cil.c [2021-12-15 11:08:47,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8791af145/77b625f3918e4b719553469b652e7dfa/FLAG9b0b47d34 [2021-12-15 11:08:47,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8791af145/77b625f3918e4b719553469b652e7dfa [2021-12-15 11:08:47,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:08:47,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:08:47,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:47,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:08:47,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:08:47,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274ac45e 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 11:08:47,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:08:47" (1/1) ... [2021-12-15 11:08:47,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:08:47,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:47,991 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_product31.cil.c[2627,2640] [2021-12-15 11:08:48,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:48,148 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 11:08:48,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:08:48,175 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_product31.cil.c[2627,2640] [2021-12-15 11:08:48,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:48,247 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:08:48,269 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_product31.cil.c[2627,2640] [2021-12-15 11:08:48,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:08:48,337 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:08:48,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48 WrapperNode [2021-12-15 11:08:48,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:08:48,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:48,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:08:48,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:08:48,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,404 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 225 [2021-12-15 11:08:48,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:08:48,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:08:48,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:08:48,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:08:48,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:08:48,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:08:48,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:08:48,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:08:48,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (1/1) ... [2021-12-15 11:08:48,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:08:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:08:48,497 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 11:08:48,522 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 11:08:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:08:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-15 11:08:48,539 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-15 11:08:48,539 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-15 11:08:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-15 11:08:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-15 11:08:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-15 11:08:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-15 11:08:48,540 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-15 11:08:48,540 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-15 11:08:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-15 11:08:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:08:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:08:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-15 11:08:48,541 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-15 11:08:48,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-15 11:08:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-15 11:08:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-15 11:08:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-15 11:08:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-15 11:08:48,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:08:48,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:08:48,629 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:08:48,630 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:08:48,914 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:08:48,925 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:08:48,926 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 11:08:48,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:08:48 BoogieIcfgContainer [2021-12-15 11:08:48,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:08:48,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:08:48,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:08:48,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:08:48,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:08:47" (1/3) ... [2021-12-15 11:08:48,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc11fb0 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 11:08:48,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:08:48" (2/3) ... [2021-12-15 11:08:48,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc11fb0 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 11:08:48,934 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 11:08:48,935 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product31.cil.c [2021-12-15 11:08:48,939 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:08:48,939 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:08:48,988 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:08:48,996 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 11:08:48,997 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:08:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 79 states have internal predecessors, (96), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2021-12-15 11:08:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-15 11:08:49,030 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:08:49,030 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 11:08:49,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:08:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:08:49,036 INFO L85 PathProgramCache]: Analyzing trace with hash -255252744, now seen corresponding path program 1 times [2021-12-15 11:08:49,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:08:49,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394980539] [2021-12-15 11:08:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:08:49,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:08:49,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:08:49,053 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 11:08:49,054 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 11:08:49,090 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 11:08:49,287 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 11:08:49,288 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 11:08:49,292 INFO L158 Benchmark]: Toolchain (without parser) took 1485.22ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 32.0MB in the beginning and 23.4MB in the end (delta: 8.6MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-12-15 11:08:49,293 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.0MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:08:49,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.50ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 29.5MB in the end (delta: 2.4MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-12-15 11:08:49,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.32ms. Allocated memory is still 60.8MB. Free memory was 29.5MB in the beginning and 27.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:49,294 INFO L158 Benchmark]: Boogie Preprocessor took 57.75ms. Allocated memory is still 60.8MB. Free memory was 27.1MB in the beginning and 25.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:08:49,295 INFO L158 Benchmark]: RCFGBuilder took 463.63ms. Allocated memory is still 60.8MB. Free memory was 25.3MB in the beginning and 32.6MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:08:49,298 INFO L158 Benchmark]: TraceAbstraction took 360.40ms. Allocated memory is still 60.8MB. Free memory was 32.2MB in the beginning and 23.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:08:49,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 30.1MB in the beginning and 30.0MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 526.50ms. Allocated memory was 48.2MB in the beginning and 60.8MB in the end (delta: 12.6MB). Free memory was 31.9MB in the beginning and 29.5MB in the end (delta: 2.4MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.32ms. Allocated memory is still 60.8MB. Free memory was 29.5MB in the beginning and 27.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.75ms. Allocated memory is still 60.8MB. Free memory was 27.1MB in the beginning and 25.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.63ms. Allocated memory is still 60.8MB. Free memory was 25.3MB in the beginning and 32.6MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 360.40ms. Allocated memory is still 60.8MB. Free memory was 32.2MB in the beginning and 23.4MB in the end (delta: 8.8MB). 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 11:08:49,331 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