./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.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/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 19:03:39,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 19:03:39,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 19:03:39,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 19:03:39,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 19:03:39,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 19:03:39,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 19:03:39,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 19:03:39,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 19:03:39,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 19:03:39,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 19:03:39,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 19:03:39,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 19:03:39,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 19:03:39,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 19:03:39,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 19:03:39,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 19:03:39,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 19:03:39,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 19:03:39,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 19:03:39,374 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 19:03:39,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 19:03:39,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 19:03:39,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 19:03:39,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 19:03:39,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 19:03:39,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 19:03:39,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 19:03:39,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 19:03:39,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 19:03:39,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 19:03:39,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 19:03:39,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 19:03:39,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 19:03:39,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 19:03:39,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 19:03:39,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 19:03:39,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 19:03:39,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 19:03:39,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 19:03:39,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 19:03:39,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 19:03:39,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 19:03:39,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 19:03:39,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 19:03:39,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 19:03:39,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 19:03:39,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 19:03:39,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 19:03:39,402 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 19:03:39,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 19:03:39,402 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 19:03:39,403 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 19:03:39,403 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 19:03:39,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 19:03:39,403 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 19:03:39,403 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 19:03:39,404 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 19:03:39,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 19:03:39,404 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 19:03:39,404 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 19:03:39,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 19:03:39,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 19:03:39,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 19:03:39,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 19:03:39,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 19:03:39,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 19:03:39,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 19:03:39,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 19:03:39,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 19:03:39,406 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 19:03:39,407 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 19:03:39,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 19:03:39,407 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 19:03:39,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 19:03:39,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 19:03:39,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 19:03:39,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:03:39,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 19:03:39,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 19:03:39,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 19:03:39,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 19:03:39,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 19:03:39,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 19:03:39,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 19:03:39,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 19:03:39,409 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2022-04-18 19:03:39,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 19:03:39,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 19:03:39,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 19:03:39,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 19:03:39,615 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 19:03:39,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2022-04-18 19:03:39,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a0daeb928/1d6d09e003c04d6b846a3bee6686bbb6/FLAG26653b9e2 [2022-04-18 19:03:40,043 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 19:03:40,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2022-04-18 19:03:40,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a0daeb928/1d6d09e003c04d6b846a3bee6686bbb6/FLAG26653b9e2 [2022-04-18 19:03:40,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a0daeb928/1d6d09e003c04d6b846a3bee6686bbb6 [2022-04-18 19:03:40,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 19:03:40,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 19:03:40,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 19:03:40,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 19:03:40,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 19:03:40,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb0342b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40, skipping insertion in model container [2022-04-18 19:03:40,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 19:03:40,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 19:03:40,728 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-ext/04_incdec_cas.i[30285,30298] [2022-04-18 19:03:40,734 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-ext/04_incdec_cas.i[30729,30742] [2022-04-18 19:03:40,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:03:40,746 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 19:03:40,782 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-ext/04_incdec_cas.i[30285,30298] [2022-04-18 19:03:40,796 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-ext/04_incdec_cas.i[30729,30742] [2022-04-18 19:03:40,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 19:03:40,834 INFO L208 MainTranslator]: Completed translation [2022-04-18 19:03:40,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40 WrapperNode [2022-04-18 19:03:40,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 19:03:40,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 19:03:40,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 19:03:40,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 19:03:40,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,890 INFO L137 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 264 [2022-04-18 19:03:40,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 19:03:40,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 19:03:40,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 19:03:40,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 19:03:40,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 19:03:40,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 19:03:40,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 19:03:40,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 19:03:40,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (1/1) ... [2022-04-18 19:03:40,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 19:03:40,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 19:03:40,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 19:03:41,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 19:03:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 19:03:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-04-18 19:03:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-04-18 19:03:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 19:03:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 19:03:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 19:03:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 19:03:41,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 19:03:41,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 19:03:41,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 19:03:41,022 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 19:03:41,109 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 19:03:41,111 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 19:03:41,400 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 19:03:41,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 19:03:41,660 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 19:03:41,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:41 BoogieIcfgContainer [2022-04-18 19:03:41,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 19:03:41,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 19:03:41,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 19:03:41,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 19:03:41,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:03:40" (1/3) ... [2022-04-18 19:03:41,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9ba079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:41, skipping insertion in model container [2022-04-18 19:03:41,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:03:40" (2/3) ... [2022-04-18 19:03:41,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9ba079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:03:41, skipping insertion in model container [2022-04-18 19:03:41,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:03:41" (3/3) ... [2022-04-18 19:03:41,670 INFO L111 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2022-04-18 19:03:41,673 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 19:03:41,674 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 19:03:41,674 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-04-18 19:03:41,674 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 19:03:41,762 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:03:41,803 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:03:41,810 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=FINITE_AUTOMATA, 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 19:03:41,810 INFO L341 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-04-18 19:03:41,821 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:03:41,831 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 141 transitions, 287 flow [2022-04-18 19:03:41,833 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 141 transitions, 287 flow [2022-04-18 19:03:41,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 136 places, 141 transitions, 287 flow [2022-04-18 19:03:41,885 INFO L129 PetriNetUnfolder]: 9/152 cut-off events. [2022-04-18 19:03:41,885 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 19:03:41,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 152 events. 9/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 341 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2022-04-18 19:03:41,892 INFO L116 LiptonReduction]: Number of co-enabled transitions 2912 [2022-04-18 19:03:55,446 WARN L232 SmtUtils]: Spent 13.20s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:01,939 WARN L232 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:16,291 WARN L232 SmtUtils]: Spent 14.35s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:23,631 WARN L232 SmtUtils]: Spent 7.34s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:39,725 WARN L232 SmtUtils]: Spent 15.79s on a formula simplification. DAG size of input: 138 DAG size of output: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:04:47,174 WARN L232 SmtUtils]: Spent 7.45s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:01,581 WARN L232 SmtUtils]: Spent 14.41s on a formula simplification. DAG size of input: 151 DAG size of output: 132 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:09,125 WARN L232 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:19,610 WARN L232 SmtUtils]: Spent 7.04s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:26,686 WARN L232 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:33,969 WARN L232 SmtUtils]: Spent 7.28s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:41,707 WARN L232 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:48,960 WARN L232 SmtUtils]: Spent 6.46s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:05:55,934 WARN L232 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:06:02,738 WARN L232 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:06:09,555 WARN L232 SmtUtils]: Spent 6.82s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:06:22,983 WARN L232 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 139 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:06:33,407 WARN L232 SmtUtils]: Spent 10.42s on a formula simplification that was a NOOP. DAG size: 139 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:06:44,407 WARN L232 SmtUtils]: Spent 11.00s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:06:55,426 WARN L232 SmtUtils]: Spent 11.02s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:08,155 WARN L232 SmtUtils]: Spent 11.78s on a formula simplification that was a NOOP. DAG size: 143 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:20,397 WARN L232 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:32,742 WARN L232 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:45,713 WARN L232 SmtUtils]: Spent 12.97s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:07:58,753 INFO L131 LiptonReduction]: Checked pairs total: 3180 [2022-04-18 19:07:58,753 INFO L133 LiptonReduction]: Total number of compositions: 177 [2022-04-18 19:07:58,760 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 40 transitions, 85 flow [2022-04-18 19:07:58,790 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 142 states, 105 states have (on average 2.6666666666666665) internal successors, (280), 141 states have internal predecessors, (280), 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 19:07:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 105 states have (on average 2.6666666666666665) internal successors, (280), 141 states have internal predecessors, (280), 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 19:07:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:07:58,796 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:58,796 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:07:58,798 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 19:07:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:58,801 INFO L85 PathProgramCache]: Analyzing trace with hash 948540744, now seen corresponding path program 1 times [2022-04-18 19:07:58,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:58,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361845160] [2022-04-18 19:07:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:58,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:07:58,964 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 19:07:58,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:07:58,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361845160] [2022-04-18 19:07:58,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361845160] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:07:58,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:07:58,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:07:58,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254947151] [2022-04-18 19:07:58,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:07:58,970 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:07:58,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:07:58,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:07:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:07:58,990 INFO L87 Difference]: Start difference. First operand has 142 states, 105 states have (on average 2.6666666666666665) internal successors, (280), 141 states have internal predecessors, (280), 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) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:07:59,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:07:59,376 INFO L93 Difference]: Finished difference Result 43 states and 89 transitions. [2022-04-18 19:07:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:07:59,378 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-04-18 19:07:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:07:59,383 INFO L225 Difference]: With dead ends: 43 [2022-04-18 19:07:59,384 INFO L226 Difference]: Without dead ends: 43 [2022-04-18 19:07:59,384 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:07:59,388 INFO L913 BasicCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-18 19:07:59,388 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-18 19:07:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-04-18 19:07:59,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-04-18 19:07:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 2.119047619047619) internal successors, (89), 42 states have internal predecessors, (89), 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 19:07:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 89 transitions. [2022-04-18 19:07:59,416 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 89 transitions. Word has length 5 [2022-04-18 19:07:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:07:59,416 INFO L478 AbstractCegarLoop]: Abstraction has 43 states and 89 transitions. [2022-04-18 19:07:59,420 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:07:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 89 transitions. [2022-04-18 19:07:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 19:07:59,421 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:07:59,421 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 19:07:59,421 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 19:07:59,421 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 19:07:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:07:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash -660132418, now seen corresponding path program 1 times [2022-04-18 19:07:59,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:07:59,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392844375] [2022-04-18 19:07:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:07:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:07:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:07:59,466 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:07:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:07:59,507 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:07:59,508 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:07:59,510 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2022-04-18 19:07:59,512 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-04-18 19:07:59,513 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-04-18 19:07:59,513 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-04-18 19:07:59,513 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-04-18 19:07:59,513 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-04-18 19:07:59,513 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-04-18 19:07:59,513 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-04-18 19:07:59,514 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-04-18 19:07:59,514 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-04-18 19:07:59,514 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-04-18 19:07:59,514 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-04-18 19:07:59,515 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-04-18 19:07:59,515 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-04-18 19:07:59,515 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-04-18 19:07:59,515 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-04-18 19:07:59,515 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2022-04-18 19:07:59,516 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2022-04-18 19:07:59,517 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2022-04-18 19:07:59,517 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-04-18 19:07:59,517 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-04-18 19:07:59,517 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-04-18 19:07:59,517 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-04-18 19:07:59,517 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-04-18 19:07:59,518 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-04-18 19:07:59,520 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-04-18 19:07:59,520 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-04-18 19:07:59,520 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-04-18 19:07:59,520 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-04-18 19:07:59,520 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-04-18 19:07:59,520 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-04-18 19:07:59,521 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 19:07:59,524 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 19:07:59,526 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:07:59,526 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 19:07:59,614 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:07:59,615 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:07:59,616 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=FINITE_AUTOMATA, 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 19:07:59,616 INFO L341 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2022-04-18 19:07:59,617 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:07:59,618 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 246 transitions, 504 flow [2022-04-18 19:07:59,618 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 246 transitions, 504 flow [2022-04-18 19:07:59,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 246 transitions, 504 flow [2022-04-18 19:07:59,660 INFO L129 PetriNetUnfolder]: 17/270 cut-off events. [2022-04-18 19:07:59,664 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 19:07:59,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 270 events. 17/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1043 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 221. Up to 6 conditions per place. [2022-04-18 19:07:59,679 INFO L116 LiptonReduction]: Number of co-enabled transitions 27664 [2022-04-18 19:08:15,504 WARN L232 SmtUtils]: Spent 14.92s on a formula simplification. DAG size of input: 138 DAG size of output: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:08:23,433 WARN L232 SmtUtils]: Spent 7.93s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:08:41,382 WARN L232 SmtUtils]: Spent 17.95s on a formula simplification. DAG size of input: 151 DAG size of output: 132 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:08:50,469 WARN L232 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:09:29,178 WARN L232 SmtUtils]: Spent 16.68s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:09:36,667 WARN L232 SmtUtils]: Spent 7.49s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:09:53,461 WARN L232 SmtUtils]: Spent 16.79s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:10:01,233 WARN L232 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:10:21,660 WARN L232 SmtUtils]: Spent 14.89s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:10:29,752 WARN L232 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:10:48,492 WARN L232 SmtUtils]: Spent 18.74s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:10:58,420 WARN L232 SmtUtils]: Spent 9.92s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:12:10,654 WARN L232 SmtUtils]: Spent 19.25s on a formula simplification. DAG size of input: 138 DAG size of output: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:12:20,314 WARN L232 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:12:35,148 WARN L232 SmtUtils]: Spent 14.83s on a formula simplification. DAG size of input: 151 DAG size of output: 132 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:12:42,956 WARN L232 SmtUtils]: Spent 7.80s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:25,931 WARN L232 SmtUtils]: Spent 9.19s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:35,101 WARN L232 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:43,514 WARN L232 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:13:51,611 WARN L232 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:27,341 WARN L232 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:35,841 WARN L232 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:47,620 WARN L232 SmtUtils]: Spent 11.78s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:15:58,067 WARN L232 SmtUtils]: Spent 10.45s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:17:18,503 INFO L131 LiptonReduction]: Checked pairs total: 134805 [2022-04-18 19:17:18,504 INFO L133 LiptonReduction]: Total number of compositions: 304 [2022-04-18 19:17:18,505 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 123 transitions, 258 flow [2022-04-18 19:17:18,846 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 16155 states, 15414 states have (on average 3.1959257817568445) internal successors, (49262), 16154 states have internal predecessors, (49262), 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 19:17:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 16155 states, 15414 states have (on average 3.1959257817568445) internal successors, (49262), 16154 states have internal predecessors, (49262), 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 19:17:18,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 19:17:18,896 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:18,897 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 19:17:18,897 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 19:17:18,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:18,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1534666512, now seen corresponding path program 1 times [2022-04-18 19:17:18,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:18,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54643592] [2022-04-18 19:17:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:18,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:18,941 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 19:17:18,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:18,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54643592] [2022-04-18 19:17:18,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54643592] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:18,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:18,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-04-18 19:17:18,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611108245] [2022-04-18 19:17:18,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:18,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 19:17:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 19:17:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:17:18,978 INFO L87 Difference]: Start difference. First operand has 16155 states, 15414 states have (on average 3.1959257817568445) internal successors, (49262), 16154 states have internal predecessors, (49262), 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) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:17:19,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:19,656 INFO L93 Difference]: Finished difference Result 7185 states and 21507 transitions. [2022-04-18 19:17:19,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 19:17:19,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2022-04-18 19:17:19,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:19,704 INFO L225 Difference]: With dead ends: 7185 [2022-04-18 19:17:19,705 INFO L226 Difference]: Without dead ends: 7185 [2022-04-18 19:17:19,705 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 19:17:19,707 INFO L913 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:19,707 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-18 19:17:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-04-18 19:17:19,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 7185. [2022-04-18 19:17:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7185 states, 7160 states have (on average 3.0037709497206704) internal successors, (21507), 7184 states have internal predecessors, (21507), 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 19:17:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7185 states to 7185 states and 21507 transitions. [2022-04-18 19:17:20,027 INFO L78 Accepts]: Start accepts. Automaton has 7185 states and 21507 transitions. Word has length 5 [2022-04-18 19:17:20,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:20,027 INFO L478 AbstractCegarLoop]: Abstraction has 7185 states and 21507 transitions. [2022-04-18 19:17:20,028 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 19:17:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 7185 states and 21507 transitions. [2022-04-18 19:17:20,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 19:17:20,030 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:20,030 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 19:17:20,030 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 19:17:20,030 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 19:17:20,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:20,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1235946739, now seen corresponding path program 1 times [2022-04-18 19:17:20,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:20,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131550225] [2022-04-18 19:17:20,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 19:17:20,329 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 19:17:20,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 19:17:20,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131550225] [2022-04-18 19:17:20,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131550225] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 19:17:20,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 19:17:20,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 19:17:20,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14669491] [2022-04-18 19:17:20,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 19:17:20,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 19:17:20,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 19:17:20,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 19:17:20,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:17:20,332 INFO L87 Difference]: Start difference. First operand 7185 states and 21507 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 19:17:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 19:17:25,229 INFO L93 Difference]: Finished difference Result 10551 states and 31186 transitions. [2022-04-18 19:17:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 19:17:25,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) Word has length 10 [2022-04-18 19:17:25,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 19:17:25,304 INFO L225 Difference]: With dead ends: 10551 [2022-04-18 19:17:25,304 INFO L226 Difference]: Without dead ends: 10551 [2022-04-18 19:17:25,305 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 19:17:25,305 INFO L913 BasicCegarLoop]: 67 mSDtfsCounter, 167 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-18 19:17:25,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 116 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-18 19:17:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10551 states. [2022-04-18 19:17:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10551 to 9217. [2022-04-18 19:17:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9217 states, 9196 states have (on average 3.0) internal successors, (27588), 9216 states have internal predecessors, (27588), 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 19:17:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9217 states to 9217 states and 27588 transitions. [2022-04-18 19:17:25,663 INFO L78 Accepts]: Start accepts. Automaton has 9217 states and 27588 transitions. Word has length 10 [2022-04-18 19:17:25,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 19:17:25,663 INFO L478 AbstractCegarLoop]: Abstraction has 9217 states and 27588 transitions. [2022-04-18 19:17:25,663 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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 19:17:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 9217 states and 27588 transitions. [2022-04-18 19:17:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 19:17:25,670 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 19:17:25,670 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-04-18 19:17:25,670 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 19:17:25,670 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2022-04-18 19:17:25,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 19:17:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1342702931, now seen corresponding path program 1 times [2022-04-18 19:17:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 19:17:25,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518596450] [2022-04-18 19:17:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 19:17:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 19:17:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:17:25,694 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 19:17:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 19:17:25,716 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 19:17:25,717 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 19:17:25,717 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2022-04-18 19:17:25,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2022-04-18 19:17:25,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2022-04-18 19:17:25,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2022-04-18 19:17:25,717 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2022-04-18 19:17:25,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2022-04-18 19:17:25,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2022-04-18 19:17:25,718 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2022-04-18 19:17:25,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2022-04-18 19:17:25,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2022-04-18 19:17:25,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2022-04-18 19:17:25,719 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2022-04-18 19:17:25,720 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2022-04-18 19:17:25,721 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2022-04-18 19:17:25,722 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2022-04-18 19:17:25,723 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2022-04-18 19:17:25,724 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2022-04-18 19:17:25,725 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2022-04-18 19:17:25,725 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2022-04-18 19:17:25,725 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2022-04-18 19:17:25,725 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2022-04-18 19:17:25,725 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2022-04-18 19:17:25,725 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2022-04-18 19:17:25,725 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 19:17:25,726 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-04-18 19:17:25,726 WARN L232 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 19:17:25,726 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-04-18 19:17:25,802 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-04-18 19:17:25,806 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 19:17:25,807 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=FINITE_AUTOMATA, 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 19:17:25,807 INFO L341 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2022-04-18 19:17:25,809 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 19:17:25,810 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 336 places, 351 transitions, 723 flow [2022-04-18 19:17:25,810 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 336 places, 351 transitions, 723 flow [2022-04-18 19:17:25,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 336 places, 351 transitions, 723 flow [2022-04-18 19:17:25,933 INFO L129 PetriNetUnfolder]: 25/388 cut-off events. [2022-04-18 19:17:25,934 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-04-18 19:17:25,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 388 events. 25/388 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1794 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 325. Up to 8 conditions per place. [2022-04-18 19:17:25,967 INFO L116 LiptonReduction]: Number of co-enabled transitions 74256 [2022-04-18 19:18:27,627 WARN L232 SmtUtils]: Spent 18.72s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15