./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 f4b24e32 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-?-f4b24e3 [2022-07-13 21:56:11,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:56:11,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:56:11,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:56:11,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:56:11,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:56:11,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:56:11,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:56:11,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:56:11,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:56:11,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:56:11,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:56:11,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:56:11,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:56:11,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:56:11,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:56:11,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:56:11,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:56:11,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:56:11,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:56:11,121 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:56:11,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:56:11,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:56:11,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:56:11,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:56:11,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:56:11,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:56:11,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:56:11,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:56:11,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:56:11,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:56:11,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:56:11,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:56:11,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:56:11,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:56:11,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:56:11,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:56:11,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:56:11,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:56:11,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:56:11,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:56:11,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:56:11,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:56:11,159 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:56:11,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:56:11,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:56:11,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:56:11,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:56:11,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:56:11,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:56:11,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:56:11,160 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:56:11,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:56:11,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:56:11,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:56:11,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:56:11,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:56:11,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:56:11,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:56:11,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 337bc30baab893db6c1e898eac989d238a0e57740b5469c94ed68dbaffc92f80 [2022-07-13 21:56:11,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:56:11,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:56:11,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:56:11,373 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:56:11,374 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:56:11,375 INFO L432 ainManager$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 [2022-07-13 21:56:11,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95cdcfca/82743e7ea21747c4b62aa74f10a470a7/FLAGd8e0c17ef [2022-07-13 21:56:11,813 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:56:11,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2022-07-13 21:56:11,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95cdcfca/82743e7ea21747c4b62aa74f10a470a7/FLAGd8e0c17ef [2022-07-13 21:56:11,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c95cdcfca/82743e7ea21747c4b62aa74f10a470a7 [2022-07-13 21:56:11,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:56:11,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:56:11,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:56:11,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:56:11,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:56:11,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:56:11" (1/1) ... [2022-07-13 21:56:11,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226cac73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:11, skipping insertion in model container [2022-07-13 21:56:11,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:56:11" (1/1) ... [2022-07-13 21:56:11,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:56:11,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:56:12,154 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] [2022-07-13 21:56:12,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:56:12,187 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:56:12,211 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] [2022-07-13 21:56:12,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:56:12,248 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:56:12,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12 WrapperNode [2022-07-13 21:56:12,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:56:12,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:56:12,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:56:12,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:56:12,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,287 INFO L137 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 218 [2022-07-13 21:56:12,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:56:12,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:56:12,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:56:12,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:56:12,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:56:12,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:56:12,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:56:12,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:56:12,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (1/1) ... [2022-07-13 21:56:12,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:56:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:56:12,337 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) [2022-07-13 21:56:12,342 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 [2022-07-13 21:56:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:56:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-13 21:56:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-13 21:56:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:56:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:56:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:56:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:56:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-13 21:56:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-13 21:56:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:56:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:56:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:56:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:56:12,362 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:56:12,453 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:56:12,454 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:56:12,690 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:56:12,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:56:12,701 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2022-07-13 21:56:12,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:56:12 BoogieIcfgContainer [2022-07-13 21:56:12,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:56:12,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:56:12,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:56:12,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:56:12,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:56:11" (1/3) ... [2022-07-13 21:56:12,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d459b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:56:12, skipping insertion in model container [2022-07-13 21:56:12,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:56:12" (2/3) ... [2022-07-13 21:56:12,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d459b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:56:12, skipping insertion in model container [2022-07-13 21:56:12,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:56:12" (3/3) ... [2022-07-13 21:56:12,711 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2022-07-13 21:56:12,715 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:56:12,720 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:56:12,721 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 21:56:12,721 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:56:12,807 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-13 21:56:12,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 200 places, 227 transitions, 476 flow [2022-07-13 21:56:12,954 INFO L129 PetriNetUnfolder]: 58/398 cut-off events. [2022-07-13 21:56:12,954 INFO L130 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-07-13 21:56:12,972 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. [2022-07-13 21:56:12,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 227 transitions, 476 flow [2022-07-13 21:56:12,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 227 transitions, 476 flow [2022-07-13 21:56:12,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:56:12,995 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@a327343, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5355d823 [2022-07-13 21:56:12,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 21:56:13,019 INFO L129 PetriNetUnfolder]: 9/124 cut-off events. [2022-07-13 21:56:13,019 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:56:13,019 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:56:13,020 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] [2022-07-13 21:56:13,021 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)] === [2022-07-13 21:56:13,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:56:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2017405666, now seen corresponding path program 1 times [2022-07-13 21:56:13,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:56:13,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472241670] [2022-07-13 21:56:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:56:13,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:56:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:56:13,140 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 21:56:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 21:56:13,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 21:56:13,198 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 21:56:13,198 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-07-13 21:56:13,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-07-13 21:56:13,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-07-13 21:56:13,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-07-13 21:56:13,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-07-13 21:56:13,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-07-13 21:56:13,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:56:13,201 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 21:56:13,203 WARN L231 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-07-13 21:56:13,204 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-07-13 21:56:13,253 INFO L135 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-07-13 21:56:13,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 310 places, 361 transitions, 770 flow [2022-07-13 21:56:13,441 INFO L129 PetriNetUnfolder]: 197/1148 cut-off events. [2022-07-13 21:56:13,441 INFO L130 PetriNetUnfolder]: For 72/86 co-relation queries the response was YES. [2022-07-13 21:56:13,461 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. [2022-07-13 21:56:13,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 310 places, 361 transitions, 770 flow [2022-07-13 21:56:13,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 361 transitions, 770 flow [2022-07-13 21:56:13,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:56:13,481 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@a327343, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5355d823 [2022-07-13 21:56:13,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-13 21:56:13,503 INFO L129 PetriNetUnfolder]: 30/292 cut-off events. [2022-07-13 21:56:13,504 INFO L130 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-07-13 21:56:13,504 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:56:13,504 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] [2022-07-13 21:56:13,505 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)] === [2022-07-13 21:56:13,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:56:13,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1063024222, now seen corresponding path program 1 times [2022-07-13 21:56:13,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:56:13,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829673382] [2022-07-13 21:56:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:56:13,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:56:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:56:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:56:13,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:56:13,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829673382] [2022-07-13 21:56:13,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829673382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:56:13,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:56:13,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-13 21:56:13,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404838857] [2022-07-13 21:56:13,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:56:13,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 21:56:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:56:13,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 21:56:13,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-07-13 21:56:13,973 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 361 [2022-07-13 21:56:13,980 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) [2022-07-13 21:56:13,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:56:13,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 361 [2022-07-13 21:56:13,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand