./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/pthread-wmm/safe029_rmo.oepc.i -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 75a7c828f35657c7c147f367c73b56881cc679fa ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/pthread-wmm/safe029_rmo.oepc.i -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 75a7c828f35657c7c147f367c73b56881cc679fa ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:59:16,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:59:16,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:59:16,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:59:16,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:59:16,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:59:16,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:59:16,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:59:16,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:59:16,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:59:16,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:59:16,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:59:16,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:59:16,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:59:16,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:59:16,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:59:16,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:59:16,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:59:16,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:59:16,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:59:16,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:59:16,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:59:16,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:59:16,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:59:16,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:59:16,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:59:16,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:59:16,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:59:16,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:59:16,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:59:16,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:59:16,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:59:16,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:59:16,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:59:16,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:59:16,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:59:16,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:59:16,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:59:16,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:59:16,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:59:16,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:59:16,998 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 15:59:17,026 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:59:17,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:59:17,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:59:17,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:59:17,028 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:59:17,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:59:17,028 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:59:17,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 15:59:17,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:59:17,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:59:17,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:59:17,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:59:17,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:59:17,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:59:17,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:59:17,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 15:59:17,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 15:59:17,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:59:17,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:59:17,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75a7c828f35657c7c147f367c73b56881cc679fa [2021-07-05 15:59:17,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:59:17,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:59:17,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:59:17,290 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:59:17,290 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:59:17,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i [2021-07-05 15:59:17,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abb06aab9/8614cc4b48c1457083ef621bb261290e/FLAGdacc37da0 [2021-07-05 15:59:17,763 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:59:17,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i [2021-07-05 15:59:17,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abb06aab9/8614cc4b48c1457083ef621bb261290e/FLAGdacc37da0 [2021-07-05 15:59:17,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abb06aab9/8614cc4b48c1457083ef621bb261290e [2021-07-05 15:59:17,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:59:17,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:59:17,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:59:17,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:59:17,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:59:17,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:59:17" (1/1) ... [2021-07-05 15:59:17,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1bc65b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:17, skipping insertion in model container [2021-07-05 15:59:17,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:59:17" (1/1) ... [2021-07-05 15:59:17,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:59:17,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:59:18,017 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i[950,963] [2021-07-05 15:59:18,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:59:18,188 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:59:18,198 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i[950,963] [2021-07-05 15:59:18,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:59:18,307 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:59:18,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18 WrapperNode [2021-07-05 15:59:18,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:59:18,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:59:18,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:59:18,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:59:18,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:59:18,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:59:18,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:59:18,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:59:18,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:59:18,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:59:18,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:59:18,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:59:18,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (1/1) ... [2021-07-05 15:59:18,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:59:18,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:59:18,438 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) [2021-07-05 15:59:18,458 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 [2021-07-05 15:59:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-05 15:59:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:59:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:59:18,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:59:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-05 15:59:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-05 15:59:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-05 15:59:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-05 15:59:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 15:59:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:59:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:59:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:59:18,474 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:59:19,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:59:19,747 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-05 15:59:19,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:59:19 BoogieIcfgContainer [2021-07-05 15:59:19,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:59:19,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:59:19,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:59:19,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:59:19,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:59:17" (1/3) ... [2021-07-05 15:59:19,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b2ac73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:59:19, skipping insertion in model container [2021-07-05 15:59:19,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:18" (2/3) ... [2021-07-05 15:59:19,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b2ac73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:59:19, skipping insertion in model container [2021-07-05 15:59:19,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:59:19" (3/3) ... [2021-07-05 15:59:19,754 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_rmo.oepc.i [2021-07-05 15:59:19,759 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:59:19,759 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:59:19,760 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 15:59:19,760 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:59:19,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,780 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,784 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,785 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,792 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,793 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:19,795 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:59:19,821 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:59:19,825 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:59:19,825 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:59:19,843 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:59:19,849 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 85 transitions, 180 flow [2021-07-05 15:59:19,851 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 85 transitions, 180 flow [2021-07-05 15:59:19,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 85 transitions, 180 flow [2021-07-05 15:59:19,878 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-07-05 15:59:19,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:59:19,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2021-07-05 15:59:19,886 INFO L116 LiptonReduction]: Number of co-enabled transitions 1004 [2021-07-05 15:59:21,205 WARN L205 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 184 [2021-07-05 15:59:21,526 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2021-07-05 15:59:22,776 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 308 DAG size of output: 264 [2021-07-05 15:59:23,348 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 261 [2021-07-05 15:59:24,284 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-07-05 15:59:24,642 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-07-05 15:59:24,766 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-07-05 15:59:26,322 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-07-05 15:59:26,432 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-07-05 15:59:26,668 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-07-05 15:59:26,771 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-07-05 15:59:26,774 INFO L131 LiptonReduction]: Checked pairs total: 2440 [2021-07-05 15:59:26,774 INFO L133 LiptonReduction]: Total number of compositions: 76 [2021-07-05 15:59:26,778 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 21 transitions, 52 flow [2021-07-05 15:59:26,788 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 194 states, 190 states have (on average 2.6210526315789475) internal successors, (498), 193 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:59:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 190 states have (on average 2.6210526315789475) internal successors, (498), 193 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:59:26,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:59:26,797 INFO L374 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:59:26,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:59:26,800 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2021-07-05 15:59:26,803 INFO L168 Benchmark]: Toolchain (without parser) took 9018.02 ms. Allocated memory was 56.6 MB in the beginning and 220.2 MB in the end (delta: 163.6 MB). Free memory was 33.5 MB in the beginning and 101.0 MB in the end (delta: -67.5 MB). Peak memory consumption was 95.7 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:26,803 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:59:26,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.41 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 33.3 MB in the beginning and 47.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:26,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.66 ms. Allocated memory is still 73.4 MB. Free memory was 47.1 MB in the beginning and 44.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:26,804 INFO L168 Benchmark]: Boogie Preprocessor took 34.90 ms. Allocated memory is still 73.4 MB. Free memory was 44.1 MB in the beginning and 42.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:26,804 INFO L168 Benchmark]: RCFGBuilder took 1330.05 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 42.0 MB in the beginning and 38.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:26,805 INFO L168 Benchmark]: TraceAbstraction took 7051.85 ms. Allocated memory was 88.1 MB in the beginning and 220.2 MB in the end (delta: 132.1 MB). Free memory was 38.0 MB in the beginning and 101.0 MB in the end (delta: -63.0 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:26,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.41 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 33.3 MB in the beginning and 47.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.66 ms. Allocated memory is still 73.4 MB. Free memory was 47.1 MB in the beginning and 44.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.90 ms. Allocated memory is still 73.4 MB. Free memory was 44.1 MB in the beginning and 42.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1330.05 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 42.0 MB in the beginning and 38.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7051.85 ms. Allocated memory was 88.1 MB in the beginning and 220.2 MB in the end (delta: 132.1 MB). Free memory was 38.0 MB in the beginning and 101.0 MB in the end (delta: -63.0 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6922.8ms, 90 PlacesBefore, 27 PlacesAfterwards, 85 TransitionsBefore, 21 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 2440 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1145, positive: 1038, positive conditional: 0, positive unconditional: 1038, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 683, positive: 648, positive conditional: 0, positive unconditional: 648, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 683, positive: 627, positive conditional: 0, positive unconditional: 627, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 557, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 514, negative conditional: 0, negative unconditional: 514, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1145, positive: 390, positive conditional: 0, positive unconditional: 390, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 683, unknown conditional: 0, unknown unconditional: 683] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:59:26,832 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 15:59:28,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 15:59:28,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 15:59:28,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 15:59:28,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 15:59:28,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 15:59:28,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 15:59:28,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 15:59:28,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 15:59:28,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 15:59:28,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 15:59:28,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 15:59:28,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 15:59:28,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 15:59:28,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 15:59:28,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 15:59:28,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 15:59:28,450 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 15:59:28,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 15:59:28,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 15:59:28,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 15:59:28,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 15:59:28,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 15:59:28,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 15:59:28,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 15:59:28,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 15:59:28,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 15:59:28,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 15:59:28,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 15:59:28,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 15:59:28,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 15:59:28,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 15:59:28,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 15:59:28,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 15:59:28,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 15:59:28,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 15:59:28,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 15:59:28,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 15:59:28,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 15:59:28,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 15:59:28,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 15:59:28,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-05 15:59:28,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 15:59:28,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 15:59:28,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 15:59:28,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 15:59:28,520 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 15:59:28,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 15:59:28,520 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 15:59:28,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 15:59:28,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 15:59:28,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 15:59:28,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 15:59:28,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:59:28,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-05 15:59:28,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 15:59:28,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 15:59:28,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-05 15:59:28,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75a7c828f35657c7c147f367c73b56881cc679fa [2021-07-05 15:59:28,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 15:59:28,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 15:59:28,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 15:59:28,801 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 15:59:28,802 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 15:59:28,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i [2021-07-05 15:59:28,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3bfdf12/4195e934b9984124ac8b48c80f9c5e71/FLAG38da60d17 [2021-07-05 15:59:29,283 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 15:59:29,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i [2021-07-05 15:59:29,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3bfdf12/4195e934b9984124ac8b48c80f9c5e71/FLAG38da60d17 [2021-07-05 15:59:29,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3bfdf12/4195e934b9984124ac8b48c80f9c5e71 [2021-07-05 15:59:29,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 15:59:29,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 15:59:29,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 15:59:29,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 15:59:29,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 15:59:29,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550d16c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29, skipping insertion in model container [2021-07-05 15:59:29,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 15:59:29,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 15:59:29,514 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i[950,963] [2021-07-05 15:59:29,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:59:29,684 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 15:59:29,693 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc.i[950,963] [2021-07-05 15:59:29,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 15:59:29,784 INFO L208 MainTranslator]: Completed translation [2021-07-05 15:59:29,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29 WrapperNode [2021-07-05 15:59:29,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 15:59:29,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 15:59:29,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 15:59:29,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 15:59:29,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 15:59:29,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 15:59:29,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 15:59:29,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 15:59:29,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 15:59:29,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 15:59:29,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 15:59:29,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 15:59:29,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (1/1) ... [2021-07-05 15:59:29,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 15:59:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 15:59:29,914 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) [2021-07-05 15:59:29,921 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 [2021-07-05 15:59:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-05 15:59:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 15:59:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-05 15:59:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-07-05 15:59:29,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-05 15:59:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-05 15:59:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-05 15:59:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-05 15:59:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-05 15:59:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-05 15:59:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 15:59:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 15:59:29,948 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-05 15:59:31,297 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 15:59:31,297 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-07-05 15:59:31,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:59:31 BoogieIcfgContainer [2021-07-05 15:59:31,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 15:59:31,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 15:59:31,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 15:59:31,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 15:59:31,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 03:59:29" (1/3) ... [2021-07-05 15:59:31,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6503262e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:59:31, skipping insertion in model container [2021-07-05 15:59:31,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 03:59:29" (2/3) ... [2021-07-05 15:59:31,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6503262e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 03:59:31, skipping insertion in model container [2021-07-05 15:59:31,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 03:59:31" (3/3) ... [2021-07-05 15:59:31,304 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_rmo.oepc.i [2021-07-05 15:59:31,310 WARN L144 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-05 15:59:31,310 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 15:59:31,310 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-07-05 15:59:31,311 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-05 15:59:31,335 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,338 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,338 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,339 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,340 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,341 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,342 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,343 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,344 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,345 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,346 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,347 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,351 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,353 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-05 15:59:31,356 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-05 15:59:31,390 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P0Err0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 15:59:31,395 INFO L329 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 15:59:31,395 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 15:59:31,411 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-07-05 15:59:31,417 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 86 transitions, 182 flow [2021-07-05 15:59:31,419 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 86 transitions, 182 flow [2021-07-05 15:59:31,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 86 transitions, 182 flow [2021-07-05 15:59:31,438 INFO L129 PetriNetUnfolder]: 2/84 cut-off events. [2021-07-05 15:59:31,438 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-05 15:59:31,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 84 events. 2/84 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2021-07-05 15:59:31,442 INFO L116 LiptonReduction]: Number of co-enabled transitions 1004 [2021-07-05 15:59:33,912 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 217 DAG size of output: 178 [2021-07-05 15:59:34,371 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-07-05 15:59:36,295 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 301 DAG size of output: 258 [2021-07-05 15:59:37,133 WARN L205 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-07-05 15:59:37,531 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2021-07-05 15:59:37,905 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 79 [2021-07-05 15:59:38,043 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-05 15:59:39,407 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-05 15:59:39,811 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-05 15:59:40,635 WARN L205 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-07-05 15:59:41,452 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-07-05 15:59:41,858 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-05 15:59:42,262 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2021-07-05 15:59:43,078 WARN L205 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-07-05 15:59:43,900 WARN L205 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-07-05 15:59:44,323 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-07-05 15:59:44,768 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-07-05 15:59:45,607 WARN L205 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-07-05 15:59:46,449 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 257 [2021-07-05 15:59:47,880 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-07-05 15:59:48,349 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-07-05 15:59:49,288 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2021-07-05 15:59:50,238 WARN L205 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2021-07-05 15:59:51,395 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-07-05 15:59:51,541 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-07-05 15:59:51,671 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-07-05 15:59:51,798 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-07-05 15:59:52,087 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-07-05 15:59:52,339 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-05 15:59:52,623 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-07-05 15:59:52,860 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-07-05 15:59:52,862 INFO L131 LiptonReduction]: Checked pairs total: 2592 [2021-07-05 15:59:52,862 INFO L133 LiptonReduction]: Total number of compositions: 78 [2021-07-05 15:59:52,868 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 19 transitions, 48 flow [2021-07-05 15:59:52,884 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 164 states, 160 states have (on average 2.43125) internal successors, (389), 163 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:59:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 160 states have (on average 2.43125) internal successors, (389), 163 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 15:59:52,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-05 15:59:52,899 INFO L374 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 15:59:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 15:59:52,903 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:135) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.StrategyFactory.constructStrategy(StrategyFactory.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.isCounterexampleFeasibleInternal(AbstractCegarLoop.java:488) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2021-07-05 15:59:52,907 INFO L168 Benchmark]: Toolchain (without parser) took 23590.51 ms. Allocated memory was 54.5 MB in the beginning and 186.6 MB in the end (delta: 132.1 MB). Free memory was 29.8 MB in the beginning and 79.2 MB in the end (delta: -49.4 MB). Peak memory consumption was 82.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:52,908 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 15:59:52,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.71 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.7 MB in the beginning and 43.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:52,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.44 ms. Allocated memory is still 71.3 MB. Free memory was 43.3 MB in the beginning and 40.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:52,912 INFO L168 Benchmark]: Boogie Preprocessor took 30.29 ms. Allocated memory is still 71.3 MB. Free memory was 40.6 MB in the beginning and 38.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:52,914 INFO L168 Benchmark]: RCFGBuilder took 1417.24 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 38.1 MB in the beginning and 66.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:52,915 INFO L168 Benchmark]: TraceAbstraction took 21605.86 ms. Allocated memory was 104.9 MB in the beginning and 186.6 MB in the end (delta: 81.8 MB). Free memory was 65.8 MB in the beginning and 79.2 MB in the end (delta: -13.4 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. [2021-07-05 15:59:52,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 467.71 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 29.7 MB in the beginning and 43.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.44 ms. Allocated memory is still 71.3 MB. Free memory was 43.3 MB in the beginning and 40.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.29 ms. Allocated memory is still 71.3 MB. Free memory was 40.6 MB in the beginning and 38.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1417.24 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 38.1 MB in the beginning and 66.6 MB in the end (delta: -28.5 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21605.86 ms. Allocated memory was 104.9 MB in the beginning and 186.6 MB in the end (delta: 81.8 MB). Free memory was 65.8 MB in the beginning and 79.2 MB in the end (delta: -13.4 MB). Peak memory consumption was 68.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21443.8ms, 91 PlacesBefore, 26 PlacesAfterwards, 86 TransitionsBefore, 19 TransitionsAfterwards, 1004 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 78 TotalNumberOfCompositions, 2592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1125, positive: 987, positive conditional: 0, positive unconditional: 987, negative: 138, negative conditional: 0, negative unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 703, positive: 639, positive conditional: 0, positive unconditional: 639, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 703, positive: 631, positive conditional: 0, positive unconditional: 631, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1890, positive: 316, positive conditional: 0, positive unconditional: 316, negative: 1573, negative conditional: 0, negative unconditional: 1573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1125, positive: 348, positive conditional: 0, positive unconditional: 348, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 703, unknown conditional: 0, unknown unconditional: 703] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.PathProgramCache.addRun(PathProgramCache.java:68) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-07-05 15:59:52,955 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...