./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/systemc/pc_sfifo_1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74d959057dcef9924c2fba34a5baac5be90cef6ad1eac335d6f9d2397fc60bb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:18:38,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:18:38,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:18:38,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:18:38,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:18:38,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:18:38,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:18:38,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:18:38,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:18:38,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:18:38,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:18:38,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:18:38,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:18:38,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:18:38,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:18:38,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:18:38,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:18:38,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:18:38,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:18:38,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:18:38,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:18:38,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:18:38,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:18:38,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:18:38,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:18:38,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:18:38,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:18:38,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:18:38,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:18:38,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:18:38,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:18:38,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:18:38,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:18:38,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:18:38,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:18:38,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:18:38,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:18:38,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:18:38,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:18:38,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:18:38,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:18:38,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:18:38,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:18:38,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:18:38,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:18:38,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:18:38,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:18:38,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:18:38,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:18:38,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:18:38,423 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:18:38,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:18:38,423 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:18:38,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:18:38,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:18:38,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:18:38,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:18:38,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:18:38,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:18:38,425 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:18:38,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:18:38,425 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:18:38,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:18:38,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:18:38,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:18:38,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:18:38,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:18:38,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:18:38,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:18:38,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:18:38,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:18:38,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:18:38,428 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:18:38,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:18:38,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:18:38,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74d959057dcef9924c2fba34a5baac5be90cef6ad1eac335d6f9d2397fc60bb [2022-02-20 18:18:38,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:18:38,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:18:38,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:18:38,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:18:38,692 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:18:38,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c [2022-02-20 18:18:38,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9dfdd176/95eb09647ded43619501b23837cddba2/FLAG34b001a45 [2022-02-20 18:18:39,128 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:18:39,128 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c [2022-02-20 18:18:39,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9dfdd176/95eb09647ded43619501b23837cddba2/FLAG34b001a45 [2022-02-20 18:18:39,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9dfdd176/95eb09647ded43619501b23837cddba2 [2022-02-20 18:18:39,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:18:39,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:18:39,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:18:39,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:18:39,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:18:39,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2f3a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39, skipping insertion in model container [2022-02-20 18:18:39,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:18:39,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:18:39,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c[642,655] [2022-02-20 18:18:39,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:18:39,353 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:18:39,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c[642,655] [2022-02-20 18:18:39,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:18:39,393 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:18:39,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39 WrapperNode [2022-02-20 18:18:39,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:18:39,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:18:39,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:18:39,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:18:39,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,436 INFO L137 Inliner]: procedures = 24, calls = 23, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 203 [2022-02-20 18:18:39,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:18:39,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:18:39,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:18:39,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:18:39,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:18:39,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:18:39,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:18:39,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:18:39,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (1/1) ... [2022-02-20 18:18:39,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:18:39,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:18:39,518 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) [2022-02-20 18:18:39,519 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 [2022-02-20 18:18:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:18:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-02-20 18:18:39,547 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-02-20 18:18:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:18:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-02-20 18:18:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-02-20 18:18:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2022-02-20 18:18:39,548 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2022-02-20 18:18:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:18:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:18:39,605 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:18:39,606 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:18:39,913 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:18:39,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:18:39,920 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 18:18:39,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:18:39 BoogieIcfgContainer [2022-02-20 18:18:39,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:18:39,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:18:39,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:18:39,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:18:39,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:18:39" (1/3) ... [2022-02-20 18:18:39,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60966359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:18:39, skipping insertion in model container [2022-02-20 18:18:39,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:39" (2/3) ... [2022-02-20 18:18:39,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60966359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:18:39, skipping insertion in model container [2022-02-20 18:18:39,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:18:39" (3/3) ... [2022-02-20 18:18:39,931 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c [2022-02-20 18:18:39,939 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:18:39,940 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:18:40,000 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:18:40,011 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:18:40,011 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:18:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 67 states have internal predecessors, (97), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-20 18:18:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-20 18:18:40,049 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:18:40,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:18:40,050 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:18:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:18:40,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1320724599, now seen corresponding path program 1 times [2022-02-20 18:18:40,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:18:40,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882601118] [2022-02-20 18:18:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:18:40,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 18:18:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:18:40,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 18:18:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:18:40,224 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 18:18:40,226 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 18:18:40,227 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 18:18:40,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 18:18:40,232 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 18:18:40,234 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 18:18:40,268 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := exists_runnable_thread(); [2022-02-20 18:18:40,269 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 18:18:40,274 INFO L158 Benchmark]: Toolchain (without parser) took 1127.01ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 53.8MB in the beginning and 94.5MB in the end (delta: -40.7MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-02-20 18:18:40,275 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:18:40,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.58ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 67.7MB in the end (delta: -14.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 18:18:40,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.85ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 18:18:40,278 INFO L158 Benchmark]: Boogie Preprocessor took 51.56ms. Allocated memory is still 94.4MB. Free memory was 65.6MB in the beginning and 64.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 18:18:40,279 INFO L158 Benchmark]: RCFGBuilder took 432.65ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 47.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-02-20 18:18:40,280 INFO L158 Benchmark]: TraceAbstraction took 348.98ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 47.4MB in the beginning and 94.5MB in the end (delta: -47.1MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-02-20 18:18:40,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.58ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 67.7MB in the end (delta: -14.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.85ms. Allocated memory is still 94.4MB. Free memory was 67.7MB in the beginning and 65.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.56ms. Allocated memory is still 94.4MB. Free memory was 65.6MB in the beginning and 64.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.65ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 47.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 348.98ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 47.4MB in the beginning and 94.5MB in the end (delta: -47.1MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 18:18:40,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/systemc/pc_sfifo_1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c74d959057dcef9924c2fba34a5baac5be90cef6ad1eac335d6f9d2397fc60bb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:18:42,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:18:42,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:18:42,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:18:42,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:18:42,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:18:42,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:18:42,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:18:42,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:18:42,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:18:42,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:18:42,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:18:42,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:18:42,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:18:42,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:18:42,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:18:42,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:18:42,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:18:42,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:18:42,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:18:42,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:18:42,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:18:42,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:18:42,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:18:42,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:18:42,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:18:42,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:18:42,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:18:42,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:18:42,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:18:42,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:18:42,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:18:42,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:18:42,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:18:42,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:18:42,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:18:42,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:18:42,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:18:42,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:18:42,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:18:42,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:18:42,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 18:18:42,347 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:18:42,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:18:42,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:18:42,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:18:42,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:18:42,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:18:42,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:18:42,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:18:42,351 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:18:42,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:18:42,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:18:42,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:18:42,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:18:42,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:18:42,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:18:42,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:18:42,353 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 18:18:42,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 18:18:42,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 18:18:42,354 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:18:42,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:18:42,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:18:42,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:18:42,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:18:42,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:18:42,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:18:42,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:18:42,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:18:42,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:18:42,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:18:42,356 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 18:18:42,356 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 18:18:42,356 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:18:42,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:18:42,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:18:42,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 18:18:42,357 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74d959057dcef9924c2fba34a5baac5be90cef6ad1eac335d6f9d2397fc60bb [2022-02-20 18:18:42,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:18:42,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:18:42,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:18:42,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:18:42,668 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:18:42,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c [2022-02-20 18:18:42,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c557421/078155643e564d47a73e8c1d7d120c2f/FLAGb8099564c [2022-02-20 18:18:43,142 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:18:43,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c [2022-02-20 18:18:43,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c557421/078155643e564d47a73e8c1d7d120c2f/FLAGb8099564c [2022-02-20 18:18:43,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c557421/078155643e564d47a73e8c1d7d120c2f [2022-02-20 18:18:43,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:18:43,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:18:43,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:18:43,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:18:43,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:18:43,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b97444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43, skipping insertion in model container [2022-02-20 18:18:43,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:18:43,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:18:43,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c[642,655] [2022-02-20 18:18:43,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:18:43,808 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:18:43,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/pc_sfifo_1.cil-1.c[642,655] [2022-02-20 18:18:43,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:18:43,895 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:18:43,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43 WrapperNode [2022-02-20 18:18:43,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:18:43,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:18:43,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:18:43,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:18:43,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,937 INFO L137 Inliner]: procedures = 24, calls = 23, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 195 [2022-02-20 18:18:43,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:18:43,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:18:43,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:18:43,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:18:43,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:18:43,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:18:43,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:18:43,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:18:43,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (1/1) ... [2022-02-20 18:18:43,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:18:43,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:18:44,016 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) [2022-02-20 18:18:44,035 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 [2022-02-20 18:18:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:18:44,053 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-02-20 18:18:44,053 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-02-20 18:18:44,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 18:18:44,055 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-02-20 18:18:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-02-20 18:18:44,055 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2022-02-20 18:18:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2022-02-20 18:18:44,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:18:44,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:18:44,145 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:18:44,147 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:18:44,441 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:18:44,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:18:44,448 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-20 18:18:44,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:18:44 BoogieIcfgContainer [2022-02-20 18:18:44,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:18:44,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:18:44,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:18:44,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:18:44,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:18:43" (1/3) ... [2022-02-20 18:18:44,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2a7ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:18:44, skipping insertion in model container [2022-02-20 18:18:44,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:18:43" (2/3) ... [2022-02-20 18:18:44,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2a7ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:18:44, skipping insertion in model container [2022-02-20 18:18:44,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:18:44" (3/3) ... [2022-02-20 18:18:44,456 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-1.c [2022-02-20 18:18:44,460 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:18:44,460 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:18:44,510 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:18:44,524 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:18:44,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:18:44,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 67 states have internal predecessors, (97), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-20 18:18:44,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-20 18:18:44,552 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:18:44,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:18:44,553 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:18:44,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:18:44,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1320724599, now seen corresponding path program 1 times [2022-02-20 18:18:44,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 18:18:44,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830134015] [2022-02-20 18:18:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:18:44,574 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 18:18:44,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 18:18:44,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 18:18:44,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 18:18:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:18:44,695 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 18:18:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:18:44,762 INFO L138 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-02-20 18:18:44,764 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 18:18:44,765 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 18:18:44,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 18:18:44,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 18:18:44,981 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 18:18:44,983 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 18:18:45,021 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := exists_runnable_thread(); [2022-02-20 18:18:45,022 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 18:18:45,027 INFO L158 Benchmark]: Toolchain (without parser) took 1470.58ms. Allocated memory is still 56.6MB. Free memory was 41.4MB in the beginning and 30.2MB in the end (delta: 11.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-02-20 18:18:45,028 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.2MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:18:45,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.43ms. Allocated memory is still 56.6MB. Free memory was 41.2MB in the beginning and 38.7MB in the end (delta: 2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-20 18:18:45,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.26ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 36.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 18:18:45,030 INFO L158 Benchmark]: Boogie Preprocessor took 43.82ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 35.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 18:18:45,034 INFO L158 Benchmark]: RCFGBuilder took 466.87ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 33.9MB in the end (delta: 1.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-02-20 18:18:45,035 INFO L158 Benchmark]: TraceAbstraction took 574.71ms. Allocated memory is still 56.6MB. Free memory was 33.3MB in the beginning and 30.2MB in the end (delta: 3.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-02-20 18:18:45,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.2MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.43ms. Allocated memory is still 56.6MB. Free memory was 41.2MB in the beginning and 38.7MB in the end (delta: 2.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.26ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 36.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.82ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 35.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.87ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 33.9MB in the end (delta: 1.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * TraceAbstraction took 574.71ms. Allocated memory is still 56.6MB. Free memory was 33.3MB in the beginning and 30.2MB in the end (delta: 3.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 18:18:45,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator