./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.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/goblint-regression/28-race_reach_81-list_racing.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 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:44:10,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:44:10,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:44:10,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:44:10,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:44:10,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:44:10,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:44:10,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:44:10,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:44:10,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:44:10,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:44:10,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:44:10,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:44:10,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:44:10,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:44:10,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:44:10,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:44:10,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:44:10,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:44:10,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:44:10,807 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:44:10,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:44:10,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:44:10,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:44:10,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:44:10,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:44:10,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:44:10,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:44:10,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:44:10,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:44:10,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:44:10,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:44:10,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:44:10,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:44:10,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:44:10,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:44:10,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:44:10,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:44:10,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:44:10,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:44:10,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:44:10,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:44:10,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:44:10,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:44:10,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:44:10,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:44:10,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:44:10,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:44:10,847 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:44:10,847 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:44:10,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:44:10,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:44:10,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:44:10,847 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:44:10,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:44:10,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:44:10,848 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:44:10,848 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:44:10,848 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:44:10,848 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:44:10,848 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:44:10,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:44:10,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:44:10,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:44:10,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:44:10,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:44:10,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:44:10,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3de6ec2acea23c0ab47fbc2e02ad0931145060ca78b80531ef692b3505f9553b [2022-04-18 18:44:11,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:44:11,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:44:11,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:44:11,064 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:44:11,065 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:44:11,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i [2022-04-18 18:44:11,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e3f79aea/1bfaa30b8a784ea08c2b5dbd27f7a566/FLAG5efcf1bb0 [2022-04-18 18:44:11,590 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:44:11,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i [2022-04-18 18:44:11,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e3f79aea/1bfaa30b8a784ea08c2b5dbd27f7a566/FLAG5efcf1bb0 [2022-04-18 18:44:11,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e3f79aea/1bfaa30b8a784ea08c2b5dbd27f7a566 [2022-04-18 18:44:11,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:44:11,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:44:11,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:44:11,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:44:11,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:44:11,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:44:11" (1/1) ... [2022-04-18 18:44:11,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31480995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:11, skipping insertion in model container [2022-04-18 18:44:11,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:44:11" (1/1) ... [2022-04-18 18:44:11,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:44:11,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:44:11,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2022-04-18 18:44:12,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:44:12,053 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:44:12,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_81-list_racing.i[47038,47051] [2022-04-18 18:44:12,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:44:12,151 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:44:12,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12 WrapperNode [2022-04-18 18:44:12,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:44:12,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:44:12,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:44:12,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:44:12,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,218 INFO L137 Inliner]: procedures = 278, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 310 [2022-04-18 18:44:12,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:44:12,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:44:12,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:44:12,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:44:12,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:44:12,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:44:12,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:44:12,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:44:12,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (1/1) ... [2022-04-18 18:44:12,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:44:12,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:44:12,291 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 18:44:12,301 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 18:44:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:44:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:44:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-04-18 18:44:12,321 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-04-18 18:44:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 18:44:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:44:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:44:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:44:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:44:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:44:12,324 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 18:44:12,417 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:44:12,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:44:12,774 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:44:12,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:44:12,790 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-04-18 18:44:12,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:44:12 BoogieIcfgContainer [2022-04-18 18:44:12,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:44:12,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:44:12,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:44:12,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:44:12,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:44:11" (1/3) ... [2022-04-18 18:44:12,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6020fdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:44:12, skipping insertion in model container [2022-04-18 18:44:12,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:44:12" (2/3) ... [2022-04-18 18:44:12,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6020fdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:44:12, skipping insertion in model container [2022-04-18 18:44:12,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:44:12" (3/3) ... [2022-04-18 18:44:12,802 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_81-list_racing.i [2022-04-18 18:44:12,805 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:44:12,805 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:44:12,805 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-04-18 18:44:12,805 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:44:12,925 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-04-18 18:44:12,964 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:44:12,968 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 18:44:12,969 INFO L341 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-04-18 18:44:12,979 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:44:12,986 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 345 transitions, 712 flow [2022-04-18 18:44:12,988 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 345 transitions, 712 flow [2022-04-18 18:44:12,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 327 places, 345 transitions, 712 flow [2022-04-18 18:44:13,133 INFO L129 PetriNetUnfolder]: 52/623 cut-off events. [2022-04-18 18:44:13,133 INFO L130 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-04-18 18:44:13,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 623 events. 52/623 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2798 event pairs, 0 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 310. Up to 8 conditions per place. [2022-04-18 18:44:13,168 INFO L116 LiptonReduction]: Number of co-enabled transitions 41512 [2022-04-18 18:45:16,765 INFO L131 LiptonReduction]: Checked pairs total: 349790 [2022-04-18 18:45:16,766 INFO L133 LiptonReduction]: Total number of compositions: 277 [2022-04-18 18:45:16,771 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 142 places, 154 transitions, 330 flow [2022-04-18 18:45:18,283 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 58227 states, 57779 states have (on average 3.097163329237266) internal successors, (178951), 58226 states have internal predecessors, (178951), 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 18:45:18,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 58227 states, 57779 states have (on average 3.097163329237266) internal successors, (178951), 58226 states have internal predecessors, (178951), 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 18:45:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:45:18,397 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:18,398 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:45:18,398 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 18:45:18,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1267, now seen corresponding path program 1 times [2022-04-18 18:45:18,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:18,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519792000] [2022-04-18 18:45:18,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:18,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:45:18,597 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 18:45:18,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:45:18,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519792000] [2022-04-18 18:45:18,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519792000] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:45:18,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:45:18,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:45:18,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804969670] [2022-04-18 18:45:18,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:45:18,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:45:18,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:45:18,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:45:18,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:45:18,691 INFO L87 Difference]: Start difference. First operand has 58227 states, 57779 states have (on average 3.097163329237266) internal successors, (178951), 58226 states have internal predecessors, (178951), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 18:45:19,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:45:19,662 INFO L93 Difference]: Finished difference Result 55925 states and 162240 transitions. [2022-04-18 18:45:19,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:45:19,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-04-18 18:45:19,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:45:20,075 INFO L225 Difference]: With dead ends: 55925 [2022-04-18 18:45:20,076 INFO L226 Difference]: Without dead ends: 55889 [2022-04-18 18:45:20,076 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 18:45:20,079 INFO L913 BasicCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:45:20,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:45:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55889 states. [2022-04-18 18:45:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55889 to 55889. [2022-04-18 18:45:21,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55889 states, 55548 states have (on average 2.91898898250162) internal successors, (162144), 55888 states have internal predecessors, (162144), 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 18:45:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55889 states to 55889 states and 162144 transitions. [2022-04-18 18:45:22,179 INFO L78 Accepts]: Start accepts. Automaton has 55889 states and 162144 transitions. Word has length 1 [2022-04-18 18:45:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:45:22,179 INFO L478 AbstractCegarLoop]: Abstraction has 55889 states and 162144 transitions. [2022-04-18 18:45:22,180 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 18:45:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand 55889 states and 162144 transitions. [2022-04-18 18:45:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:45:22,181 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:45:22,181 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-04-18 18:45:22,181 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:45:22,185 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-04-18 18:45:22,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:45:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1020188466, now seen corresponding path program 1 times [2022-04-18 18:45:22,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:45:22,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312219910] [2022-04-18 18:45:22,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:45:22,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:45:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:45:22,274 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-18 18:45:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-18 18:45:22,328 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-04-18 18:45:22,328 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-18 18:45:22,329 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-04-18 18:45:22,330 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-04-18 18:45:22,331 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-04-18 18:45:22,332 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-04-18 18:45:22,333 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-04-18 18:45:22,334 INFO L788 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-04-18 18:45:22,334 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:45:22,348 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-18 18:45:22,349 WARN L232 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-04-18 18:45:22,349 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-04-18 18:45:22,392 INFO L135 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-04-18 18:45:22,394 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:45:22,394 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 18:45:22,395 INFO L341 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2022-04-18 18:45:22,400 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:45:22,400 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 521 places, 554 transitions, 1156 flow [2022-04-18 18:45:22,401 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 521 places, 554 transitions, 1156 flow [2022-04-18 18:45:22,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 521 places, 554 transitions, 1156 flow [2022-04-18 18:45:22,828 INFO L129 PetriNetUnfolder]: 191/1805 cut-off events. [2022-04-18 18:45:22,829 INFO L130 PetriNetUnfolder]: For 72/120 co-relation queries the response was YES. [2022-04-18 18:45:22,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 1805 events. 191/1805 cut-off events. For 72/120 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 12443 event pairs, 2 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 1122. Up to 32 conditions per place. [2022-04-18 18:45:22,947 INFO L116 LiptonReduction]: Number of co-enabled transitions 169368 [2022-04-18 18:48:02,919 INFO L131 LiptonReduction]: Checked pairs total: 1632031 [2022-04-18 18:48:02,919 INFO L133 LiptonReduction]: Total number of compositions: 426 [2022-04-18 18:48:02,921 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 251 places, 276 transitions, 600 flow