./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:29:52,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:29:52,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:29:52,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:29:52,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:29:52,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:29:52,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:29:52,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:29:52,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:29:52,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:29:52,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:29:52,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:29:52,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:29:52,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:29:52,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:29:52,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:29:52,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:29:52,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:29:52,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:29:52,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:29:52,311 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:29:52,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:29:52,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:29:52,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:29:52,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:29:52,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:29:52,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:29:52,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:29:52,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:29:52,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:29:52,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:29:52,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:29:52,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:29:52,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:29:52,323 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:29:52,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:29:52,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:29:52,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:29:52,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:29:52,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:29:52,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:29:52,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:29:52,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:29:52,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:29:52,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:29:52,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:29:52,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:29:52,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:29:52,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:29:52,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:29:52,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:29:52,362 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:29:52,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:29:52,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:29:52,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:29:52,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:29:52,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:29:52,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:29:52,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:29:52,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:29:52,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:29:52,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:29:52,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:29:52,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:29:52,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:29:52,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:29:52,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:29:52,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:29:52,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:29:52,366 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:29:52,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:29:52,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:29:52,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2022-04-18 16:29:52,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:29:52,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:29:52,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:29:52,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:29:52,559 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:29:52,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i [2022-04-18 16:29:52,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ebc5044/878bfc53f3e0497fa4205ad807cc4778/FLAGb5dff9f63 [2022-04-18 16:29:52,991 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:29:52,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i [2022-04-18 16:29:53,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ebc5044/878bfc53f3e0497fa4205ad807cc4778/FLAGb5dff9f63 [2022-04-18 16:29:53,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4ebc5044/878bfc53f3e0497fa4205ad807cc4778 [2022-04-18 16:29:53,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:29:53,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:29:53,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:29:53,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:29:53,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:29:53,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566b934d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53, skipping insertion in model container [2022-04-18 16:29:53,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:29:53,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:29:53,543 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i[988,1001] [2022-04-18 16:29:53,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:29:53,762 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:29:53,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_rmo.i[988,1001] [2022-04-18 16:29:53,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:29:53,860 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:29:53,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53 WrapperNode [2022-04-18 16:29:53,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:29:53,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:29:53,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:29:53,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:29:53,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,936 INFO L137 Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 339 [2022-04-18 16:29:53,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:29:53,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:29:53,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:29:53,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:29:53,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:29:53,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:29:53,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:29:53,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:29:53,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (1/1) ... [2022-04-18 16:29:53,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:29:54,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:29:54,057 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) [2022-04-18 16:29:54,103 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 [2022-04-18 16:29:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:29:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:29:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:29:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:29:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:29:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:29:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-04-18 16:29:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-04-18 16:29:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-04-18 16:29:54,131 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-04-18 16:29:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-04-18 16:29:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-04-18 16:29:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-04-18 16:29:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-04-18 16:29:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:29:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:29:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:29:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:29:54,134 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:29:54,307 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:29:54,309 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:29:55,036 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:30:23,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:30:23,871 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 16:30:23,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:23 BoogieIcfgContainer [2022-04-18 16:30:23,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:30:23,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:30:23,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:30:23,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:30:23,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:29:53" (1/3) ... [2022-04-18 16:30:23,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ca1522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:23, skipping insertion in model container [2022-04-18 16:30:23,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:29:53" (2/3) ... [2022-04-18 16:30:23,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ca1522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:30:23, skipping insertion in model container [2022-04-18 16:30:23,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:30:23" (3/3) ... [2022-04-18 16:30:23,906 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_rmo.i [2022-04-18 16:30:23,910 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:30:23,910 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:30:23,910 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 189 error locations. [2022-04-18 16:30:23,910 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:30:27,687 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 16:30:27,742 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:30:27,749 INFO L340 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 [2022-04-18 16:30:27,749 INFO L341 AbstractCegarLoop]: Starting to check reachability of 337 error locations. [2022-04-18 16:30:27,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 357 places, 346 transitions, 712 flow [2022-04-18 16:30:28,376 INFO L129 PetriNetUnfolder]: 2/342 cut-off events. [2022-04-18 16:30:28,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:30:28,385 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 342 events. 2/342 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1668 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 279. Up to 2 conditions per place. [2022-04-18 16:30:28,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 357 places, 346 transitions, 712 flow [2022-04-18 16:30:28,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 342 transitions, 696 flow [2022-04-18 16:30:28,414 INFO L129 PetriNetUnfolder]: 0/71 cut-off events. [2022-04-18 16:30:28,414 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:30:28,414 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:28,416 INFO L255 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, 1, 1, 1, 1, 1] [2022-04-18 16:30:28,416 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err57ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 333 more)] === [2022-04-18 16:30:28,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:28,422 INFO L85 PathProgramCache]: Analyzing trace with hash 383671450, now seen corresponding path program 1 times [2022-04-18 16:30:28,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:28,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585175056] [2022-04-18 16:30:28,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:28,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:28,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:28,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585175056] [2022-04-18 16:30:28,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585175056] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:28,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:28,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 16:30:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844657168] [2022-04-18 16:30:28,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:28,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 16:30:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:28,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 16:30:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 16:30:28,823 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 346 [2022-04-18 16:30:28,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 342 transitions, 696 flow. Second operand has 2 states, 2 states have (on average 137.0) internal successors, (274), 2 states have internal predecessors, (274), 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) [2022-04-18 16:30:28,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:28,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 346 [2022-04-18 16:30:28,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:30,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-18 16:30:36,395 INFO L129 PetriNetUnfolder]: 3756/12880 cut-off events. [2022-04-18 16:30:36,395 INFO L130 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-04-18 16:30:36,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18176 conditions, 12880 events. 3756/12880 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 148721 event pairs, 3756 based on Foata normal form. 560/12637 useless extension candidates. Maximal degree in co-relation 18098. Up to 5121 conditions per place. [2022-04-18 16:30:36,544 INFO L132 encePairwiseOnDemand]: 157/346 looper letters, 20 selfloop transitions, 0 changer transitions 0/152 dead transitions. [2022-04-18 16:30:36,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 152 transitions, 356 flow [2022-04-18 16:30:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 16:30:36,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-04-18 16:30:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 481 transitions. [2022-04-18 16:30:36,572 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.6950867052023122 [2022-04-18 16:30:36,573 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 481 transitions. [2022-04-18 16:30:36,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 481 transitions. [2022-04-18 16:30:36,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:36,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 481 transitions. [2022-04-18 16:30:36,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 240.5) internal successors, (481), 2 states have internal predecessors, (481), 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) [2022-04-18 16:30:36,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 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) [2022-04-18 16:30:36,599 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 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) [2022-04-18 16:30:36,601 INFO L186 Difference]: Start difference. First operand has 353 places, 342 transitions, 696 flow. Second operand 2 states and 481 transitions. [2022-04-18 16:30:36,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 152 transitions, 356 flow [2022-04-18 16:30:36,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 152 transitions, 352 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:30:36,607 INFO L242 Difference]: Finished difference. Result has 162 places, 152 transitions, 312 flow [2022-04-18 16:30:36,624 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=312, PETRI_PLACES=162, PETRI_TRANSITIONS=152} [2022-04-18 16:30:36,629 INFO L335 CegarLoopForPetriNet]: 353 programPoint places, -191 predicate places. [2022-04-18 16:30:36,630 INFO L478 AbstractCegarLoop]: Abstraction has has 162 places, 152 transitions, 312 flow [2022-04-18 16:30:36,630 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.0) internal successors, (274), 2 states have internal predecessors, (274), 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) [2022-04-18 16:30:36,630 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:36,630 INFO L255 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, 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] [2022-04-18 16:30:36,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:30:36,631 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 333 more)] === [2022-04-18 16:30:36,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:36,632 INFO L85 PathProgramCache]: Analyzing trace with hash 629525951, now seen corresponding path program 1 times [2022-04-18 16:30:36,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:36,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218516721] [2022-04-18 16:30:36,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:36,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:37,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:37,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:37,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218516721] [2022-04-18 16:30:37,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218516721] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:37,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:37,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:37,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302849428] [2022-04-18 16:30:37,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:37,097 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:37,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:37,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:37,101 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 346 [2022-04-18 16:30:37,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 152 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2022-04-18 16:30:37,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:37,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 346 [2022-04-18 16:30:37,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:45,203 INFO L129 PetriNetUnfolder]: 5708/17532 cut-off events. [2022-04-18 16:30:45,204 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:30:45,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25417 conditions, 17532 events. 5708/17532 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 196184 event pairs, 1804 based on Foata normal form. 0/16525 useless extension candidates. Maximal degree in co-relation 25414. Up to 5184 conditions per place. [2022-04-18 16:30:45,281 INFO L132 encePairwiseOnDemand]: 344/346 looper letters, 34 selfloop transitions, 1 changer transitions 0/164 dead transitions. [2022-04-18 16:30:45,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 164 transitions, 406 flow [2022-04-18 16:30:45,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:30:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:30:45,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2022-04-18 16:30:45,284 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.4190751445086705 [2022-04-18 16:30:45,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2022-04-18 16:30:45,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2022-04-18 16:30:45,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:30:45,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2022-04-18 16:30:45,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2022-04-18 16:30:45,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2022-04-18 16:30:45,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 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) [2022-04-18 16:30:45,288 INFO L186 Difference]: Start difference. First operand has 162 places, 152 transitions, 312 flow. Second operand 3 states and 435 transitions. [2022-04-18 16:30:45,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 164 transitions, 406 flow [2022-04-18 16:30:45,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 164 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:30:45,291 INFO L242 Difference]: Finished difference. Result has 163 places, 151 transitions, 312 flow [2022-04-18 16:30:45,291 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=163, PETRI_TRANSITIONS=151} [2022-04-18 16:30:45,291 INFO L335 CegarLoopForPetriNet]: 353 programPoint places, -190 predicate places. [2022-04-18 16:30:45,292 INFO L478 AbstractCegarLoop]: Abstraction has has 163 places, 151 transitions, 312 flow [2022-04-18 16:30:45,292 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2022-04-18 16:30:45,292 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:30:45,292 INFO L255 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, 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] [2022-04-18 16:30:45,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:30:45,293 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 333 more)] === [2022-04-18 16:30:45,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:30:45,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2064758147, now seen corresponding path program 1 times [2022-04-18 16:30:45,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:30:45,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395735294] [2022-04-18 16:30:45,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:30:45,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:30:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:30:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:30:45,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:30:45,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395735294] [2022-04-18 16:30:45,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395735294] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:30:45,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:30:45,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:30:45,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942484965] [2022-04-18 16:30:45,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:30:45,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:30:45,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:30:45,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:30:45,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:30:45,590 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 346 [2022-04-18 16:30:45,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 151 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2022-04-18 16:30:45,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:30:45,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 346 [2022-04-18 16:30:45,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:30:49,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []