./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh --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 8f6daa714ad29a28643c70bea2be7f060091d3c3adf6e85890e4056205fd8d77 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:22:19,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:22:19,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:22:19,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:22:19,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:22:19,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:22:19,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:22:19,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:22:19,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:22:19,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:22:19,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:22:19,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:22:19,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:22:19,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:22:19,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:22:19,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:22:19,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:22:19,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:22:19,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:22:19,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:22:19,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:22:19,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:22:19,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:22:19,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:22:19,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:22:19,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:22:19,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:22:19,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:22:19,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:22:19,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:22:19,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:22:19,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:22:19,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:22:19,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:22:19,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:22:19,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:22:19,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:22:19,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:22:19,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:22:19,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:22:19,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:22:19,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 13:22:19,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:22:19,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:22:19,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:22:19,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:22:19,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:22:19,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:22:19,382 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:22:19,382 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:22:19,382 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:22:19,382 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:22:19,382 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:22:19,383 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:22:19,383 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:22:19,383 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:22:19,383 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:22:19,383 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:22:19,384 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:22:19,384 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:22:19,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:22:19,385 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:22:19,385 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:22:19,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:22:19,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:22:19,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:22:19,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:22:19,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:22:19,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:22:19,386 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 13:22:19,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:22:19,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:22:19,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:22:19,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:22:19,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:22:19,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:22:19,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:22:19,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:22:19,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f6daa714ad29a28643c70bea2be7f060091d3c3adf6e85890e4056205fd8d77 [2022-12-14 13:22:19,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:22:19,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:22:19,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:22:19,599 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:22:19,599 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:22:19,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i [2022-12-14 13:22:22,072 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:22:22,262 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:22:22,262 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i [2022-12-14 13:22:22,271 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/data/3a90b700f/2b9d143935da415daf7864e861063bb4/FLAG2ced30b6f [2022-12-14 13:22:22,632 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/data/3a90b700f/2b9d143935da415daf7864e861063bb4 [2022-12-14 13:22:22,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:22:22,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:22:22,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:22:22,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:22:22,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:22:22,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ca4b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22, skipping insertion in model container [2022-12-14 13:22:22,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:22:22,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:22:22,872 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i[30010,30023] [2022-12-14 13:22:22,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:22:22,883 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:22:22,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/sv-benchmarks/c/pthread-ext/45_monabsex1_vs-b.i[30010,30023] [2022-12-14 13:22:22,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:22:22,930 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:22:22,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22 WrapperNode [2022-12-14 13:22:22,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:22:22,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:22:22,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:22:22,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:22:22,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,958 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-12-14 13:22:22,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:22:22,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:22:22,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:22:22,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:22:22,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,974 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:22:22,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:22:22,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:22:22,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:22:22,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (1/1) ... [2022-12-14 13:22:22,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:22:22,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:22:23,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:22:23,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:22:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 13:22:23,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 13:22:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:22:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:22:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:22:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:22:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:22:23,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:22:23,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:22:23,037 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 13:22:23,132 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:22:23,133 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:22:23,210 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:22:23,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:22:23,215 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:22:23,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:22:23 BoogieIcfgContainer [2022-12-14 13:22:23,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:22:23,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:22:23,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:22:23,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:22:23,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:22:22" (1/3) ... [2022-12-14 13:22:23,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16da46c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:22:23, skipping insertion in model container [2022-12-14 13:22:23,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:22:22" (2/3) ... [2022-12-14 13:22:23,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16da46c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:22:23, skipping insertion in model container [2022-12-14 13:22:23,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:22:23" (3/3) ... [2022-12-14 13:22:23,223 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs-b.i [2022-12-14 13:22:23,230 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 13:22:23,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:22:23,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 13:22:23,239 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:22:23,273 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 13:22:23,298 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:22:23,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 57 transitions, 119 flow [2022-12-14 13:22:23,313 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 57 transitions, 119 flow [2022-12-14 13:22:23,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 57 transitions, 119 flow [2022-12-14 13:22:23,343 INFO L130 PetriNetUnfolder]: 3/68 cut-off events. [2022-12-14 13:22:23,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 13:22:23,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 3/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 33. Up to 4 conditions per place. [2022-12-14 13:22:23,347 INFO L119 LiptonReduction]: Number of co-enabled transitions 560 [2022-12-14 13:22:24,281 INFO L134 LiptonReduction]: Checked pairs total: 475 [2022-12-14 13:22:24,281 INFO L136 LiptonReduction]: Total number of compositions: 59 [2022-12-14 13:22:24,289 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 25 flow [2022-12-14 13:22:24,300 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 22 states have internal predecessors, (33), 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) [2022-12-14 13:22:24,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:22:24,322 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e387047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:22:24,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 13:22:24,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 22 states have internal predecessors, (33), 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) [2022-12-14 13:22:24,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:22:24,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:24,327 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:22:24,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 13:22:24,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:24,332 INFO L85 PathProgramCache]: Analyzing trace with hash 238, now seen corresponding path program 1 times [2022-12-14 13:22:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:24,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261690093] [2022-12-14 13:22:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:24,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:24,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:24,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261690093] [2022-12-14 13:22:24,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261690093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:24,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:24,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 13:22:24,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818700303] [2022-12-14 13:22:24,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:24,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:22:24,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:22:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:22:24,440 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 22 states have internal predecessors, (33), 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) [2022-12-14 13:22:24,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:24,455 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-12-14 13:22:24,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:22:24,457 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 [2022-12-14 13:22:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:24,463 INFO L225 Difference]: With dead ends: 11 [2022-12-14 13:22:24,463 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 13:22:24,464 INFO L412 NwaCegarLoop]: 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 [2022-12-14 13:22:24,466 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:24,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:24,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 13:22:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 13:22:24,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-12-14 13:22:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-12-14 13:22:24,487 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 1 [2022-12-14 13:22:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:24,488 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-12-14 13:22:24,488 INFO L496 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) [2022-12-14 13:22:24,488 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-14 13:22:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:22:24,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:24,488 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 13:22:24,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:22:24,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-14 13:22:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:24,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1571184454, now seen corresponding path program 1 times [2022-12-14 13:22:24,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:24,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60298653] [2022-12-14 13:22:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:22:24,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:22:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:22:24,538 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:22:24,538 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:22:24,539 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2022-12-14 13:22:24,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2022-12-14 13:22:24,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2022-12-14 13:22:24,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-12-14 13:22:24,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-12-14 13:22:24,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-12-14 13:22:24,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:22:24,543 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:22:24,545 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 13:22:24,545 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 13:22:24,555 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 13:22:24,557 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:22:24,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 168 flow [2022-12-14 13:22:24,557 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 168 flow [2022-12-14 13:22:24,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 168 flow [2022-12-14 13:22:24,571 INFO L130 PetriNetUnfolder]: 5/102 cut-off events. [2022-12-14 13:22:24,571 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 13:22:24,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 102 events. 5/102 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 69. Up to 6 conditions per place. [2022-12-14 13:22:24,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 1960 [2022-12-14 13:22:25,437 INFO L134 LiptonReduction]: Checked pairs total: 6330 [2022-12-14 13:22:25,438 INFO L136 LiptonReduction]: Total number of compositions: 69 [2022-12-14 13:22:25,439 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 66 flow [2022-12-14 13:22:25,473 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 529 states, 509 states have (on average 2.848722986247544) internal successors, (1450), 528 states have internal predecessors, (1450), 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) [2022-12-14 13:22:25,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:22:25,475 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e387047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:22:25,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 13:22:25,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 529 states, 509 states have (on average 2.848722986247544) internal successors, (1450), 528 states have internal predecessors, (1450), 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) [2022-12-14 13:22:25,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:22:25,476 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,476 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:22:25,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 13:22:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash 401, now seen corresponding path program 1 times [2022-12-14 13:22:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936077375] [2022-12-14 13:22:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:25,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936077375] [2022-12-14 13:22:25,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936077375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 13:22:25,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315042615] [2022-12-14 13:22:25,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:22:25,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:22:25,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:22:25,492 INFO L87 Difference]: Start difference. First operand has 529 states, 509 states have (on average 2.848722986247544) internal successors, (1450), 528 states have internal predecessors, (1450), 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) [2022-12-14 13:22:25,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:25,516 INFO L93 Difference]: Finished difference Result 444 states and 1115 transitions. [2022-12-14 13:22:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:22:25,516 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 [2022-12-14 13:22:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:25,521 INFO L225 Difference]: With dead ends: 444 [2022-12-14 13:22:25,521 INFO L226 Difference]: Without dead ends: 444 [2022-12-14 13:22:25,521 INFO L412 NwaCegarLoop]: 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 [2022-12-14 13:22:25,522 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:25,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-12-14 13:22:25,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-12-14 13:22:25,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 435 states have (on average 2.5632183908045976) internal successors, (1115), 443 states have internal predecessors, (1115), 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) [2022-12-14 13:22:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1115 transitions. [2022-12-14 13:22:25,547 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1115 transitions. Word has length 1 [2022-12-14 13:22:25,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,547 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 1115 transitions. [2022-12-14 13:22:25,547 INFO L496 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) [2022-12-14 13:22:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1115 transitions. [2022-12-14 13:22:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:22:25,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:22:25,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:22:25,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 13:22:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1040502195, now seen corresponding path program 1 times [2022-12-14 13:22:25,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439371220] [2022-12-14 13:22:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:25,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439371220] [2022-12-14 13:22:25,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439371220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:25,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456811888] [2022-12-14 13:22:25,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:25,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:25,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:25,596 INFO L87 Difference]: Start difference. First operand 444 states and 1115 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 13:22:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:25,631 INFO L93 Difference]: Finished difference Result 465 states and 1172 transitions. [2022-12-14 13:22:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:25,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 13:22:25,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:25,636 INFO L225 Difference]: With dead ends: 465 [2022-12-14 13:22:25,636 INFO L226 Difference]: Without dead ends: 465 [2022-12-14 13:22:25,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:25,637 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:25,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-12-14 13:22:25,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2022-12-14 13:22:25,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 456 states have (on average 2.5701754385964914) internal successors, (1172), 464 states have internal predecessors, (1172), 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) [2022-12-14 13:22:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1172 transitions. [2022-12-14 13:22:25,654 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1172 transitions. Word has length 6 [2022-12-14 13:22:25,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,655 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 1172 transitions. [2022-12-14 13:22:25,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 13:22:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1172 transitions. [2022-12-14 13:22:25,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:22:25,655 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:25,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:22:25,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 13:22:25,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,656 INFO L85 PathProgramCache]: Analyzing trace with hash 804798305, now seen corresponding path program 1 times [2022-12-14 13:22:25,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886701874] [2022-12-14 13:22:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:25,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886701874] [2022-12-14 13:22:25,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886701874] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:25,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214580465] [2022-12-14 13:22:25,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:25,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:25,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:25,687 INFO L87 Difference]: Start difference. First operand 465 states and 1172 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 13:22:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:25,718 INFO L93 Difference]: Finished difference Result 496 states and 1207 transitions. [2022-12-14 13:22:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:25,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-14 13:22:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:25,721 INFO L225 Difference]: With dead ends: 496 [2022-12-14 13:22:25,721 INFO L226 Difference]: Without dead ends: 496 [2022-12-14 13:22:25,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:25,722 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:25,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 18 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:25,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-12-14 13:22:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 446. [2022-12-14 13:22:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 439 states have (on average 2.4874715261959) internal successors, (1092), 445 states have internal predecessors, (1092), 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) [2022-12-14 13:22:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 1092 transitions. [2022-12-14 13:22:25,733 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 1092 transitions. Word has length 8 [2022-12-14 13:22:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,734 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 1092 transitions. [2022-12-14 13:22:25,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 13:22:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 1092 transitions. [2022-12-14 13:22:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:22:25,734 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,734 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:25,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:22:25,735 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 13:22:25,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,735 INFO L85 PathProgramCache]: Analyzing trace with hash -547135382, now seen corresponding path program 1 times [2022-12-14 13:22:25,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108512656] [2022-12-14 13:22:25,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:25,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:22:25,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:25,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108512656] [2022-12-14 13:22:25,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108512656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:25,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:25,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:25,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696619582] [2022-12-14 13:22:25,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:25,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:25,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:25,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:25,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:25,766 INFO L87 Difference]: Start difference. First operand 446 states and 1092 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-14 13:22:25,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:25,795 INFO L93 Difference]: Finished difference Result 456 states and 1110 transitions. [2022-12-14 13:22:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:25,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 [2022-12-14 13:22:25,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:25,799 INFO L225 Difference]: With dead ends: 456 [2022-12-14 13:22:25,799 INFO L226 Difference]: Without dead ends: 456 [2022-12-14 13:22:25,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:25,800 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:25,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 17 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:25,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-12-14 13:22:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 431. [2022-12-14 13:22:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 426 states have (on average 2.4530516431924885) internal successors, (1045), 430 states have internal predecessors, (1045), 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) [2022-12-14 13:22:25,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 1045 transitions. [2022-12-14 13:22:25,809 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 1045 transitions. Word has length 10 [2022-12-14 13:22:25,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:25,809 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 1045 transitions. [2022-12-14 13:22:25,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-14 13:22:25,810 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 1045 transitions. [2022-12-14 13:22:25,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:22:25,810 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:25,810 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 13:22:25,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:22:25,810 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-14 13:22:25,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash 215511515, now seen corresponding path program 1 times [2022-12-14 13:22:25,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:25,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782048482] [2022-12-14 13:22:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:22:25,822 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:22:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:22:25,831 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:22:25,831 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:22:25,831 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-12-14 13:22:25,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-12-14 13:22:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-12-14 13:22:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2022-12-14 13:22:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-12-14 13:22:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-12-14 13:22:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-12-14 13:22:25,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-12-14 13:22:25,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:22:25,832 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 13:22:25,833 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 13:22:25,833 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 13:22:25,845 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 13:22:25,848 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:22:25,849 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 99 transitions, 219 flow [2022-12-14 13:22:25,849 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 99 transitions, 219 flow [2022-12-14 13:22:25,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 99 transitions, 219 flow [2022-12-14 13:22:25,870 INFO L130 PetriNetUnfolder]: 7/136 cut-off events. [2022-12-14 13:22:25,871 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-14 13:22:25,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 136 events. 7/136 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 273 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 106. Up to 8 conditions per place. [2022-12-14 13:22:25,873 INFO L119 LiptonReduction]: Number of co-enabled transitions 4200 [2022-12-14 13:22:26,774 INFO L134 LiptonReduction]: Checked pairs total: 14287 [2022-12-14 13:22:26,774 INFO L136 LiptonReduction]: Total number of compositions: 87 [2022-12-14 13:22:26,775 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 37 transitions, 95 flow [2022-12-14 13:22:26,876 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4814 states, 4750 states have (on average 3.7917894736842106) internal successors, (18011), 4813 states have internal predecessors, (18011), 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) [2022-12-14 13:22:26,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:22:26,877 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e387047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:22:26,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 13:22:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 4814 states, 4750 states have (on average 3.7917894736842106) internal successors, (18011), 4813 states have internal predecessors, (18011), 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) [2022-12-14 13:22:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 13:22:26,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:26,888 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 13:22:26,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 13:22:26,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash 607, now seen corresponding path program 1 times [2022-12-14 13:22:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:26,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7868802] [2022-12-14 13:22:26,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:26,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:26,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7868802] [2022-12-14 13:22:26,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7868802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:26,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:26,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 13:22:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779149479] [2022-12-14 13:22:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:26,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:22:26,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:26,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:22:26,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:22:26,906 INFO L87 Difference]: Start difference. First operand has 4814 states, 4750 states have (on average 3.7917894736842106) internal successors, (18011), 4813 states have internal predecessors, (18011), 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) [2022-12-14 13:22:26,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:26,967 INFO L93 Difference]: Finished difference Result 4008 states and 13607 transitions. [2022-12-14 13:22:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:22:26,968 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 [2022-12-14 13:22:26,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:26,997 INFO L225 Difference]: With dead ends: 4008 [2022-12-14 13:22:26,997 INFO L226 Difference]: Without dead ends: 4008 [2022-12-14 13:22:26,997 INFO L412 NwaCegarLoop]: 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 [2022-12-14 13:22:26,998 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:26,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2022-12-14 13:22:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 4008. [2022-12-14 13:22:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4008 states, 3981 states have (on average 3.4179854307962825) internal successors, (13607), 4007 states have internal predecessors, (13607), 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) [2022-12-14 13:22:27,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 13607 transitions. [2022-12-14 13:22:27,160 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 13607 transitions. Word has length 1 [2022-12-14 13:22:27,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:27,160 INFO L495 AbstractCegarLoop]: Abstraction has 4008 states and 13607 transitions. [2022-12-14 13:22:27,161 INFO L496 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) [2022-12-14 13:22:27,161 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 13607 transitions. [2022-12-14 13:22:27,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:22:27,161 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:27,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:22:27,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 13:22:27,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 13:22:27,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:27,162 INFO L85 PathProgramCache]: Analyzing trace with hash 753560814, now seen corresponding path program 1 times [2022-12-14 13:22:27,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:27,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239708389] [2022-12-14 13:22:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:27,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:27,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:27,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239708389] [2022-12-14 13:22:27,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239708389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:27,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:27,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:27,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047344634] [2022-12-14 13:22:27,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:27,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:27,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:27,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:27,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:27,189 INFO L87 Difference]: Start difference. First operand 4008 states and 13607 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 13:22:27,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:27,269 INFO L93 Difference]: Finished difference Result 4389 states and 14952 transitions. [2022-12-14 13:22:27,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:27,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 13:22:27,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:27,300 INFO L225 Difference]: With dead ends: 4389 [2022-12-14 13:22:27,300 INFO L226 Difference]: Without dead ends: 4389 [2022-12-14 13:22:27,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:27,301 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:27,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 24 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:27,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2022-12-14 13:22:27,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4389. [2022-12-14 13:22:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4389 states, 4362 states have (on average 3.4277854195323245) internal successors, (14952), 4388 states have internal predecessors, (14952), 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) [2022-12-14 13:22:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 14952 transitions. [2022-12-14 13:22:27,428 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 14952 transitions. Word has length 6 [2022-12-14 13:22:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:27,428 INFO L495 AbstractCegarLoop]: Abstraction has 4389 states and 14952 transitions. [2022-12-14 13:22:27,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 13:22:27,428 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 14952 transitions. [2022-12-14 13:22:27,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:22:27,428 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:27,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:27,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:22:27,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 13:22:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1677467871, now seen corresponding path program 1 times [2022-12-14 13:22:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:27,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594062239] [2022-12-14 13:22:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:22:27,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594062239] [2022-12-14 13:22:27,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594062239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:27,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:27,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34714130] [2022-12-14 13:22:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:27,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:27,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:27,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:27,454 INFO L87 Difference]: Start difference. First operand 4389 states and 14952 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 13:22:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:27,566 INFO L93 Difference]: Finished difference Result 5778 states and 18831 transitions. [2022-12-14 13:22:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-14 13:22:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:27,592 INFO L225 Difference]: With dead ends: 5778 [2022-12-14 13:22:27,592 INFO L226 Difference]: Without dead ends: 5778 [2022-12-14 13:22:27,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:27,593 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:27,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:22:27,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5778 states. [2022-12-14 13:22:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5778 to 4768. [2022-12-14 13:22:27,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4743 states have (on average 3.324899852414084) internal successors, (15770), 4767 states have internal predecessors, (15770), 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) [2022-12-14 13:22:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 15770 transitions. [2022-12-14 13:22:27,737 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 15770 transitions. Word has length 8 [2022-12-14 13:22:27,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:27,738 INFO L495 AbstractCegarLoop]: Abstraction has 4768 states and 15770 transitions. [2022-12-14 13:22:27,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 13:22:27,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 15770 transitions. [2022-12-14 13:22:27,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:22:27,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:27,738 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:27,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 13:22:27,739 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 13:22:27,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:27,739 INFO L85 PathProgramCache]: Analyzing trace with hash 113420840, now seen corresponding path program 1 times [2022-12-14 13:22:27,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:27,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853280210] [2022-12-14 13:22:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:22:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 13:22:27,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:22:27,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853280210] [2022-12-14 13:22:27,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853280210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:22:27,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:22:27,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:22:27,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157036955] [2022-12-14 13:22:27,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:22:27,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:22:27,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:22:27,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:22:27,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:27,758 INFO L87 Difference]: Start difference. First operand 4768 states and 15770 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-14 13:22:27,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:22:27,868 INFO L93 Difference]: Finished difference Result 4901 states and 16161 transitions. [2022-12-14 13:22:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:22:27,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 [2022-12-14 13:22:27,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:22:27,893 INFO L225 Difference]: With dead ends: 4901 [2022-12-14 13:22:27,893 INFO L226 Difference]: Without dead ends: 4901 [2022-12-14 13:22:27,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:22:27,894 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:22:27,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 22 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:22:27,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2022-12-14 13:22:28,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 4901. [2022-12-14 13:22:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4901 states, 4878 states have (on average 3.3130381303813037) internal successors, (16161), 4900 states have internal predecessors, (16161), 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) [2022-12-14 13:22:28,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4901 states to 4901 states and 16161 transitions. [2022-12-14 13:22:28,098 INFO L78 Accepts]: Start accepts. Automaton has 4901 states and 16161 transitions. Word has length 10 [2022-12-14 13:22:28,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:22:28,099 INFO L495 AbstractCegarLoop]: Abstraction has 4901 states and 16161 transitions. [2022-12-14 13:22:28,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-14 13:22:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4901 states and 16161 transitions. [2022-12-14 13:22:28,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 13:22:28,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:22:28,100 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:22:28,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 13:22:28,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-14 13:22:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:22:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash -94467175, now seen corresponding path program 1 times [2022-12-14 13:22:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:22:28,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398148905] [2022-12-14 13:22:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:22:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:22:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:22:28,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:22:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:22:28,132 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:22:28,133 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:22:28,133 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2022-12-14 13:22:28,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2022-12-14 13:22:28,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2022-12-14 13:22:28,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2022-12-14 13:22:28,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-12-14 13:22:28,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2022-12-14 13:22:28,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2022-12-14 13:22:28,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2022-12-14 13:22:28,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2022-12-14 13:22:28,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2022-12-14 13:22:28,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 13:22:28,135 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 13:22:28,139 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-12-14 13:22:28,139 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:22:28,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:22:28 BasicIcfg [2022-12-14 13:22:28,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:22:28,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:22:28,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:22:28,160 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:22:28,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:22:23" (3/4) ... [2022-12-14 13:22:28,162 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:22:28,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:22:28,163 INFO L158 Benchmark]: Toolchain (without parser) took 5526.16ms. Allocated memory was 142.6MB in the beginning and 255.9MB in the end (delta: 113.2MB). Free memory was 110.7MB in the beginning and 159.2MB in the end (delta: -48.5MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2022-12-14 13:22:28,163 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:22:28,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.12ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 91.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:22:28,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.99ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:22:28,163 INFO L158 Benchmark]: Boogie Preprocessor took 17.07ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 88.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:22:28,163 INFO L158 Benchmark]: RCFGBuilder took 240.60ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 77.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 13:22:28,164 INFO L158 Benchmark]: TraceAbstraction took 4940.66ms. Allocated memory was 142.6MB in the beginning and 255.9MB in the end (delta: 113.2MB). Free memory was 76.5MB in the beginning and 160.2MB in the end (delta: -83.7MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-12-14 13:22:28,164 INFO L158 Benchmark]: Witness Printer took 2.48ms. Allocated memory is still 255.9MB. Free memory was 160.2MB in the beginning and 159.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:22:28,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.12ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 91.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.99ms. Allocated memory is still 142.6MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.07ms. Allocated memory is still 142.6MB. Free memory was 89.7MB in the beginning and 88.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 240.60ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 77.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4940.66ms. Allocated memory was 142.6MB in the beginning and 255.9MB in the end (delta: 113.2MB). Free memory was 76.5MB in the beginning and 160.2MB in the end (delta: -83.7MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Witness Printer took 2.48ms. Allocated memory is still 255.9MB. Free memory was 160.2MB in the beginning and 159.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 58 PlacesBefore, 13 PlacesAfterwards, 57 TransitionsBefore, 10 TransitionsAfterwards, 560 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 59 TotalNumberOfCompositions, 475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 475, independent: 475, independent conditional: 0, independent unconditional: 475, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 374, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 374, independent: 374, independent conditional: 0, independent unconditional: 374, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 475, independent: 101, independent conditional: 0, independent unconditional: 101, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 374, unknown conditional: 0, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 80 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 27 TransitionsAfterwards, 1960 CoEnabledTransitionPairs, 8 FixpointIterations, 23 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 69 TotalNumberOfCompositions, 6330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3590, independent: 3346, independent conditional: 0, independent unconditional: 3346, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1443, independent: 1401, independent conditional: 0, independent unconditional: 1401, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1443, independent: 1342, independent conditional: 0, independent unconditional: 1342, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 101, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3590, independent: 1945, independent conditional: 0, independent unconditional: 1945, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 1443, unknown conditional: 0, unknown unconditional: 1443] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 102 PlacesBefore, 41 PlacesAfterwards, 99 TransitionsBefore, 37 TransitionsAfterwards, 4200 CoEnabledTransitionPairs, 7 FixpointIterations, 23 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 14287 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5916, independent: 5587, independent conditional: 0, independent unconditional: 5587, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3140, independent: 3065, independent conditional: 0, independent unconditional: 3065, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3140, independent: 2907, independent conditional: 0, independent unconditional: 2907, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 233, independent: 158, independent conditional: 0, independent unconditional: 158, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 96, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5916, independent: 2522, independent conditional: 0, independent unconditional: 2522, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 3140, unknown conditional: 0, unknown unconditional: 3140] , Statistics on independence cache: Total cache size (in pairs): 248, Positive cache size: 206, Positive conditional cache size: 0, Positive unconditional cache size: 206, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L685] 0 int s; [L696] 0 s = __VERIFIER_nondet_int() [L697] 0 pthread_t t; VAL [s=0, t={3:0}] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, pthread_create(&t, 0, thr1, 0)=-2, s=0, t={3:0}] [L688] 1 int l = __VERIFIER_nondet_int(); [L689] 1 l = 4 [L690] 1 s = l VAL [arg={0:0}, arg={0:0}, l=4, s=4] [L698] COND TRUE 0 1 [L698] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, arg={0:0}, l=4, pthread_create(&t, 0, thr1, 0)=-1, s=4, s = l=49, t={3:0}] [L688] 2 int l = __VERIFIER_nondet_int(); [L689] 2 l = 4 [L690] 2 s = l VAL [arg={0:0}, arg={0:0}, l=4, s=4, s = l=49] Now there is a data race on ~s~0 between C: s = __VERIFIER_nondet_int() [696] and C: s = l [690] - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 76 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 96 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 56 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=529occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 116 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 75 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4901occurred in iteration=4, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 1010 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 13:22:28,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f33cef7-53a3-4735-8865-198aecaf3744/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE