./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/goblint-regression/28-race_reach_10-ptrmunge_racefree.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 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:18:04,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:18:04,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:18:04,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:18:04,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:18:04,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:18:04,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:18:04,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:18:04,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:18:04,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:18:04,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:18:04,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:18:04,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:18:04,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:18:04,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:18:04,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:18:04,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:18:04,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:18:04,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:18:04,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:18:04,545 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:18:04,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:18:04,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:18:04,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:18:04,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:18:04,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:18:04,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:18:04,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:18:04,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:18:04,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:18:04,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:18:04,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:18:04,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:18:04,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:18:04,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:18:04,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:18:04,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:18:04,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:18:04,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:18:04,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:18:04,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:18:04,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:18:04,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:18:04,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:18:04,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:18:04,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:18:04,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:18:04,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:18:04,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:18:04,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:18:04,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:18:04,588 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:18:04,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:18:04,589 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:18:04,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:18:04,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:18:04,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:18:04,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:18:04,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:18:04,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:18:04,590 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:18:04,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:18:04,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:18:04,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:18:04,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:18:04,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:18:04,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:18:04,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:18:04,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:18:04,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:18:04,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:18:04,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:18:04,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:18:04,593 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:18:04,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:18:04,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:18:04,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2022-07-19 21:18:04,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:18:04,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:18:04,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:18:04,855 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:18:04,855 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:18:04,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-07-19 21:18:04,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4293cd9/8f1269172b77486e91be0a4f2d7ee049/FLAG73875f090 [2022-07-19 21:18:05,466 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:18:05,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-07-19 21:18:05,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4293cd9/8f1269172b77486e91be0a4f2d7ee049/FLAG73875f090 [2022-07-19 21:18:05,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e4293cd9/8f1269172b77486e91be0a4f2d7ee049 [2022-07-19 21:18:05,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:18:05,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:18:05,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:18:05,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:18:05,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:18:05,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:18:05" (1/1) ... [2022-07-19 21:18:05,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438a4e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:05, skipping insertion in model container [2022-07-19 21:18:05,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:18:05" (1/1) ... [2022-07-19 21:18:05,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:18:05,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:18:06,133 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/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2022-07-19 21:18:06,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:18:06,186 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:18:06,232 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/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2022-07-19 21:18:06,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:18:06,281 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:18:06,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06 WrapperNode [2022-07-19 21:18:06,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:18:06,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:18:06,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:18:06,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:18:06,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,339 INFO L137 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2022-07-19 21:18:06,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:18:06,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:18:06,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:18:06,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:18:06,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:18:06,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:18:06,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:18:06,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:18:06,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (1/1) ... [2022-07-19 21:18:06,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:18:06,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:18:06,418 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) [2022-07-19 21:18:06,455 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 [2022-07-19 21:18:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:18:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-19 21:18:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-19 21:18:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:18:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-19 21:18:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:18:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:18:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-19 21:18:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-19 21:18:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:18:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:18:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:18:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:18:06,479 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:18:06,586 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:18:06,588 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:18:06,853 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:18:06,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:18:06,863 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2022-07-19 21:18:06,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:18:06 BoogieIcfgContainer [2022-07-19 21:18:06,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:18:06,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:18:06,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:18:06,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:18:06,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:18:05" (1/3) ... [2022-07-19 21:18:06,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d02450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:18:06, skipping insertion in model container [2022-07-19 21:18:06,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:18:06" (2/3) ... [2022-07-19 21:18:06,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d02450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:18:06, skipping insertion in model container [2022-07-19 21:18:06,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:18:06" (3/3) ... [2022-07-19 21:18:06,874 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2022-07-19 21:18:06,879 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:18:06,886 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:18:06,886 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 21:18:06,887 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:18:06,971 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-19 21:18:07,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 227 transitions, 476 flow [2022-07-19 21:18:07,131 INFO L129 PetriNetUnfolder]: 58/398 cut-off events. [2022-07-19 21:18:07,131 INFO L130 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-07-19 21:18:07,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 398 events. 58/398 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1745 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 211. Up to 8 conditions per place. [2022-07-19 21:18:07,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 227 transitions, 476 flow [2022-07-19 21:18:07,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 227 transitions, 476 flow [2022-07-19 21:18:07,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:18:07,170 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60b9cbe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@220bac5c [2022-07-19 21:18:07,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-19 21:18:07,201 INFO L129 PetriNetUnfolder]: 9/124 cut-off events. [2022-07-19 21:18:07,201 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:18:07,202 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:18:07,203 INFO L200 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:18:07,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2022-07-19 21:18:07,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:18:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2017405666, now seen corresponding path program 1 times [2022-07-19 21:18:07,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:18:07,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917109323] [2022-07-19 21:18:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:18:07,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:18:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:18:07,381 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 21:18:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:18:07,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 21:18:07,463 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 21:18:07,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-07-19 21:18:07,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-07-19 21:18:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-07-19 21:18:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-07-19 21:18:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-07-19 21:18:07,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-07-19 21:18:07,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:18:07,468 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 21:18:07,474 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-19 21:18:07,474 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-19 21:18:07,552 INFO L135 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-07-19 21:18:07,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 310 places, 361 transitions, 770 flow [2022-07-19 21:18:07,851 INFO L129 PetriNetUnfolder]: 197/1148 cut-off events. [2022-07-19 21:18:07,851 INFO L130 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-07-19 21:18:07,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 1148 events. 197/1148 cut-off events. For 72/86 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6979 event pairs, 1 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 711. Up to 32 conditions per place. [2022-07-19 21:18:07,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 310 places, 361 transitions, 770 flow [2022-07-19 21:18:07,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 361 transitions, 770 flow [2022-07-19 21:18:07,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:18:07,894 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@60b9cbe, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@220bac5c [2022-07-19 21:18:07,894 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-19 21:18:07,927 INFO L129 PetriNetUnfolder]: 30/292 cut-off events. [2022-07-19 21:18:07,928 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-07-19 21:18:07,928 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:18:07,928 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:18:07,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-07-19 21:18:07,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:18:07,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1063024222, now seen corresponding path program 1 times [2022-07-19 21:18:07,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:18:07,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507983131] [2022-07-19 21:18:07,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:18:07,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:18:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:18:08,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:18:08,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:18:08,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507983131] [2022-07-19 21:18:08,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507983131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:18:08,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:18:08,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-19 21:18:08,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473749032] [2022-07-19 21:18:08,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:18:08,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 21:18:08,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:18:08,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 21:18:08,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-19 21:18:08,562 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 361 [2022-07-19 21:18:08,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 361 transitions, 770 flow. Second operand has 14 states, 14 states have (on average 207.0) internal successors, (2898), 14 states have internal predecessors, (2898), 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) [2022-07-19 21:18:08,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:18:08,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 361 [2022-07-19 21:18:08,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand