./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW --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 0cc9afdbf7eeaac0d52aedc8a0325c076240e2f45d0a3fe91081372b30b32137 --- 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-4e7fbc6 [2022-11-23 14:43:26,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:43:26,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:43:26,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:43:26,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:43:26,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:43:26,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:43:26,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:43:26,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:43:26,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:43:26,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:43:26,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:43:26,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:43:26,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:43:26,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:43:26,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:43:26,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:43:26,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:43:26,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:43:26,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:43:26,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:43:26,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:43:26,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:43:26,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:43:26,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:43:26,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:43:26,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:43:26,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:43:26,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:43:26,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:43:26,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:43:26,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:43:26,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:43:26,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:43:26,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:43:26,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:43:26,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:43:26,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:43:26,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:43:26,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:43:26,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:43:26,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:43:26,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:43:26,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:43:26,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:43:26,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:43:26,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:43:26,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:43:26,250 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:43:26,250 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:43:26,251 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:43:26,251 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:43:26,252 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:43:26,252 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:43:26,253 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:43:26,253 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:43:26,253 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:43:26,254 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:43:26,254 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:43:26,254 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:43:26,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:43:26,255 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:43:26,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:43:26,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:43:26,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:43:26,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:43:26,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:43:26,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:43:26,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:43:26,257 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:43:26,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:43:26,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:43:26,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:43:26,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:43:26,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:43:26,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:43:26,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:26,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:43:26,260 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:43:26,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:43:26,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:43:26,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:43:26,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:43:26,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:43:26,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:43:26,262 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_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc9afdbf7eeaac0d52aedc8a0325c076240e2f45d0a3fe91081372b30b32137 [2022-11-23 14:43:26,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:43:26,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:43:26,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:43:26,644 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:43:26,645 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:43:26,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i [2022-11-23 14:43:29,684 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:43:30,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:43:30,031 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i [2022-11-23 14:43:30,048 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/data/3ffe92917/9a5e9206cddf4b8bbcbbb61bff5724f1/FLAG32b3c9a68 [2022-11-23 14:43:30,068 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/data/3ffe92917/9a5e9206cddf4b8bbcbbb61bff5724f1 [2022-11-23 14:43:30,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:43:30,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:43:30,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:30,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:43:30,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:43:30,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64331ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30, skipping insertion in model container [2022-11-23 14:43:30,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:43:30,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:43:30,513 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_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i[31040,31053] [2022-11-23 14:43:30,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:30,542 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:43:30,615 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_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i[31040,31053] [2022-11-23 14:43:30,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:30,665 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:43:30,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30 WrapperNode [2022-11-23 14:43:30,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:30,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:30,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:43:30,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:43:30,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,689 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,731 INFO L138 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 292 [2022-11-23 14:43:30,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:30,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:43:30,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:43:30,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:43:30,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:43:30,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:43:30,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:43:30,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:43:30,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (1/1) ... [2022-11-23 14:43:30,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:30,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:30,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:43:30,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d3c64-1ee6-44e7-8a23-8f3c18ea04c7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:43:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:43:30,923 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-23 14:43:30,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-23 14:43:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:43:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:43:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:43:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:43:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:43:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:43:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:43:30,926 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:43:31,154 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:43:31,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:43:31,795 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:43:32,211 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:43:32,211 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:43:32,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:32 BoogieIcfgContainer [2022-11-23 14:43:32,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:43:32,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:43:32,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:43:32,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:43:32,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:43:30" (1/3) ... [2022-11-23 14:43:32,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571b04bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:32, skipping insertion in model container [2022-11-23 14:43:32,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:30" (2/3) ... [2022-11-23 14:43:32,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571b04bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:32, skipping insertion in model container [2022-11-23 14:43:32,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:32" (3/3) ... [2022-11-23 14:43:32,226 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longest-1.i [2022-11-23 14:43:32,237 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:43:32,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:43:32,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-23 14:43:32,249 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:43:32,362 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:43:32,407 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:43:32,434 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 162 places, 166 transitions, 337 flow [2022-11-23 14:43:32,441 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 162 places, 166 transitions, 337 flow [2022-11-23 14:43:32,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 166 transitions, 337 flow [2022-11-23 14:43:32,573 INFO L130 PetriNetUnfolder]: 8/177 cut-off events. [2022-11-23 14:43:32,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 14:43:32,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 177 events. 8/177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-11-23 14:43:32,590 INFO L119 LiptonReduction]: Number of co-enabled transitions 3584 [2022-11-23 14:43:44,566 INFO L134 LiptonReduction]: Checked pairs total: 3970 [2022-11-23 14:43:44,566 INFO L136 LiptonReduction]: Total number of compositions: 218 [2022-11-23 14:43:44,574 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 44 transitions, 93 flow [2022-11-23 14:43:44,597 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 177 states, 124 states have (on average 2.661290322580645) internal successors, (330), 176 states have internal predecessors, (330), 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) [2022-11-23 14:43:44,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:43:44,627 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;@19807c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:43:44,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-23 14:43:44,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 124 states have (on average 2.661290322580645) internal successors, (330), 176 states have internal predecessors, (330), 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) [2022-11-23 14:43:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:43:44,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:44,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:43:44,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-23 14:43:44,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:44,643 INFO L85 PathProgramCache]: Analyzing trace with hash 37663844, now seen corresponding path program 1 times [2022-11-23 14:43:44,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:44,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104631150] [2022-11-23 14:43:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:43:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:43:44,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:43:44,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104631150] [2022-11-23 14:43:44,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104631150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:43:44,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:43:44,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:43:44,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752622663] [2022-11-23 14:43:44,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:43:44,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:43:44,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:43:44,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:43:44,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:43:44,855 INFO L87 Difference]: Start difference. First operand has 177 states, 124 states have (on average 2.661290322580645) internal successors, (330), 176 states have internal predecessors, (330), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:43:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:43:44,920 INFO L93 Difference]: Finished difference Result 39 states and 74 transitions. [2022-11-23 14:43:44,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:43:44,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-23 14:43:44,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:43:44,931 INFO L225 Difference]: With dead ends: 39 [2022-11-23 14:43:44,931 INFO L226 Difference]: Without dead ends: 39 [2022-11-23 14:43:44,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:43:44,939 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:43:44,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:43:44,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-23 14:43:44,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-23 14:43:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 38 states have internal predecessors, (74), 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) [2022-11-23 14:43:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 74 transitions. [2022-11-23 14:43:44,989 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 74 transitions. Word has length 4 [2022-11-23 14:43:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:43:44,990 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 74 transitions. [2022-11-23 14:43:44,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:43:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 74 transitions. [2022-11-23 14:43:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:43:44,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:43:44,992 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 14:43:44,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:43:44,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-23 14:43:44,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:43:44,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1835151549, now seen corresponding path program 1 times [2022-11-23 14:43:44,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:43:44,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587298834] [2022-11-23 14:43:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:43:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:43:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:43:45,056 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:43:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:43:45,108 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:43:45,111 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:43:45,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-11-23 14:43:45,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-23 14:43:45,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-23 14:43:45,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-23 14:43:45,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-23 14:43:45,120 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-23 14:43:45,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-23 14:43:45,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-23 14:43:45,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-23 14:43:45,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-23 14:43:45,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-23 14:43:45,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-23 14:43:45,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-23 14:43:45,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-23 14:43:45,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-23 14:43:45,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-23 14:43:45,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-23 14:43:45,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-23 14:43:45,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-23 14:43:45,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-23 14:43:45,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-23 14:43:45,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-23 14:43:45,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-23 14:43:45,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-23 14:43:45,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-23 14:43:45,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-23 14:43:45,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-23 14:43:45,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-23 14:43:45,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-23 14:43:45,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-23 14:43:45,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-23 14:43:45,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-23 14:43:45,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-11-23 14:43:45,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-11-23 14:43:45,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-11-23 14:43:45,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-23 14:43:45,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-23 14:43:45,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-23 14:43:45,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-23 14:43:45,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-23 14:43:45,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-23 14:43:45,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-23 14:43:45,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-23 14:43:45,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-23 14:43:45,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-23 14:43:45,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-23 14:43:45,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-23 14:43:45,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-23 14:43:45,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-23 14:43:45,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-23 14:43:45,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-23 14:43:45,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-23 14:43:45,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-23 14:43:45,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:43:45,148 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:43:45,150 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 14:43:45,150 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 14:43:45,237 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:43:45,243 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:43:45,243 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 295 transitions, 602 flow [2022-11-23 14:43:45,243 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 295 transitions, 602 flow [2022-11-23 14:43:45,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 295 transitions, 602 flow [2022-11-23 14:43:45,331 INFO L130 PetriNetUnfolder]: 15/319 cut-off events. [2022-11-23 14:43:45,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 14:43:45,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 319 events. 15/319 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 882 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 269. Up to 6 conditions per place. [2022-11-23 14:43:45,360 INFO L119 LiptonReduction]: Number of co-enabled transitions 40192 [2022-11-23 14:46:24,212 INFO L134 LiptonReduction]: Checked pairs total: 282374 [2022-11-23 14:46:24,213 INFO L136 LiptonReduction]: Total number of compositions: 321 [2022-11-23 14:46:24,214 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146 places, 151 transitions, 314 flow [2022-11-23 14:46:25,278 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 27672 states, 26189 states have (on average 3.1072969567375615) internal successors, (81377), 27671 states have internal predecessors, (81377), 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) [2022-11-23 14:46:25,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:46:25,280 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;@19807c0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:46:25,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2022-11-23 14:46:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand has 27672 states, 26189 states have (on average 3.1072969567375615) internal successors, (81377), 27671 states have internal predecessors, (81377), 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) [2022-11-23 14:46:25,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:46:25,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:25,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:46:25,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 14:46:25,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:25,338 INFO L85 PathProgramCache]: Analyzing trace with hash 59411532, now seen corresponding path program 1 times [2022-11-23 14:46:25,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:25,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876518020] [2022-11-23 14:46:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:25,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:25,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:25,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876518020] [2022-11-23 14:46:25,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876518020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:25,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:25,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 14:46:25,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385384474] [2022-11-23 14:46:25,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:25,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:46:25,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:25,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:46:25,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:46:25,426 INFO L87 Difference]: Start difference. First operand has 27672 states, 26189 states have (on average 3.1072969567375615) internal successors, (81377), 27671 states have internal predecessors, (81377), 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 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:46:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:26,004 INFO L93 Difference]: Finished difference Result 13991 states and 40590 transitions. [2022-11-23 14:46:26,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:46:26,005 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-23 14:46:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:26,138 INFO L225 Difference]: With dead ends: 13991 [2022-11-23 14:46:26,138 INFO L226 Difference]: Without dead ends: 13991 [2022-11-23 14:46:26,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:46:26,141 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:26,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:46:26,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13991 states. [2022-11-23 14:46:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13991 to 13991. [2022-11-23 14:46:27,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13991 states, 13847 states have (on average 2.9313208637249946) internal successors, (40590), 13990 states have internal predecessors, (40590), 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) [2022-11-23 14:46:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13991 states to 13991 states and 40590 transitions. [2022-11-23 14:46:27,321 INFO L78 Accepts]: Start accepts. Automaton has 13991 states and 40590 transitions. Word has length 4 [2022-11-23 14:46:27,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:27,321 INFO L495 AbstractCegarLoop]: Abstraction has 13991 states and 40590 transitions. [2022-11-23 14:46:27,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-23 14:46:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 13991 states and 40590 transitions. [2022-11-23 14:46:27,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:46:27,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:27,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:46:27,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:46:27,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 14:46:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:27,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1259957711, now seen corresponding path program 1 times [2022-11-23 14:46:27,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:27,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580739079] [2022-11-23 14:46:27,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:27,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:27,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:27,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580739079] [2022-11-23 14:46:27,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580739079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:27,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:27,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:46:27,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902091851] [2022-11-23 14:46:27,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:27,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:27,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:27,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:27,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:27,478 INFO L87 Difference]: Start difference. First operand 13991 states and 40590 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) [2022-11-23 14:46:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:28,653 INFO L93 Difference]: Finished difference Result 26634 states and 77310 transitions. [2022-11-23 14:46:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:46:28,654 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 [2022-11-23 14:46:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:28,846 INFO L225 Difference]: With dead ends: 26634 [2022-11-23 14:46:28,847 INFO L226 Difference]: Without dead ends: 26634 [2022-11-23 14:46:28,847 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 [2022-11-23 14:46:28,850 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 110 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:28,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 121 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 14:46:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26634 states. [2022-11-23 14:46:29,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26634 to 14287. [2022-11-23 14:46:29,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14287 states, 14146 states have (on average 2.957867948536689) internal successors, (41842), 14286 states have internal predecessors, (41842), 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) [2022-11-23 14:46:29,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14287 states to 14287 states and 41842 transitions. [2022-11-23 14:46:29,699 INFO L78 Accepts]: Start accepts. Automaton has 14287 states and 41842 transitions. Word has length 6 [2022-11-23 14:46:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:29,699 INFO L495 AbstractCegarLoop]: Abstraction has 14287 states and 41842 transitions. [2022-11-23 14:46:29,699 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) [2022-11-23 14:46:29,699 INFO L276 IsEmpty]: Start isEmpty. Operand 14287 states and 41842 transitions. [2022-11-23 14:46:29,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:46:29,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:29,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:46:29,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:46:29,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 14:46:29,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:29,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1691968991, now seen corresponding path program 1 times [2022-11-23 14:46:29,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:29,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090059059] [2022-11-23 14:46:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:29,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:46:29,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:29,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090059059] [2022-11-23 14:46:29,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090059059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:29,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:46:29,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:46:29,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992948812] [2022-11-23 14:46:29,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:29,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:46:29,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:29,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:46:29,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:46:29,804 INFO L87 Difference]: Start difference. First operand 14287 states and 41842 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) [2022-11-23 14:46:30,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:30,501 INFO L93 Difference]: Finished difference Result 14473 states and 42371 transitions. [2022-11-23 14:46:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:46:30,503 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 9 [2022-11-23 14:46:30,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:30,730 INFO L225 Difference]: With dead ends: 14473 [2022-11-23 14:46:30,730 INFO L226 Difference]: Without dead ends: 14473 [2022-11-23 14:46:30,731 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 [2022-11-23 14:46:30,732 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 56 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:30,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 144 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:46:30,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14473 states. [2022-11-23 14:46:31,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14473 to 14473. [2022-11-23 14:46:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14473 states, 14332 states have (on average 2.956391292213229) internal successors, (42371), 14472 states have internal predecessors, (42371), 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) [2022-11-23 14:46:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14473 states to 14473 states and 42371 transitions. [2022-11-23 14:46:31,258 INFO L78 Accepts]: Start accepts. Automaton has 14473 states and 42371 transitions. Word has length 9 [2022-11-23 14:46:31,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:31,258 INFO L495 AbstractCegarLoop]: Abstraction has 14473 states and 42371 transitions. [2022-11-23 14:46:31,259 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) [2022-11-23 14:46:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 14473 states and 42371 transitions. [2022-11-23 14:46:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:46:31,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:31,262 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 14:46:31,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:46:31,262 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2022-11-23 14:46:31,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:31,263 INFO L85 PathProgramCache]: Analyzing trace with hash -487231851, now seen corresponding path program 1 times [2022-11-23 14:46:31,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:31,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131750494] [2022-11-23 14:46:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:46:31,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:46:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:46:31,318 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:46:31,324 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:46:31,324 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2022-11-23 14:46:31,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2022-11-23 14:46:31,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2022-11-23 14:46:31,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2022-11-23 14:46:31,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2022-11-23 14:46:31,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2022-11-23 14:46:31,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2022-11-23 14:46:31,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2022-11-23 14:46:31,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2022-11-23 14:46:31,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2022-11-23 14:46:31,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2022-11-23 14:46:31,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2022-11-23 14:46:31,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2022-11-23 14:46:31,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2022-11-23 14:46:31,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2022-11-23 14:46:31,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2022-11-23 14:46:31,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2022-11-23 14:46:31,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2022-11-23 14:46:31,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2022-11-23 14:46:31,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2022-11-23 14:46:31,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2022-11-23 14:46:31,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2022-11-23 14:46:31,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2022-11-23 14:46:31,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2022-11-23 14:46:31,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2022-11-23 14:46:31,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2022-11-23 14:46:31,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2022-11-23 14:46:31,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2022-11-23 14:46:31,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2022-11-23 14:46:31,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2022-11-23 14:46:31,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2022-11-23 14:46:31,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2022-11-23 14:46:31,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2022-11-23 14:46:31,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2022-11-23 14:46:31,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2022-11-23 14:46:31,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2022-11-23 14:46:31,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2022-11-23 14:46:31,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2022-11-23 14:46:31,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2022-11-23 14:46:31,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2022-11-23 14:46:31,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2022-11-23 14:46:31,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2022-11-23 14:46:31,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2022-11-23 14:46:31,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2022-11-23 14:46:31,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2022-11-23 14:46:31,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2022-11-23 14:46:31,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2022-11-23 14:46:31,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2022-11-23 14:46:31,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2022-11-23 14:46:31,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2022-11-23 14:46:31,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2022-11-23 14:46:31,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2022-11-23 14:46:31,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2022-11-23 14:46:31,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2022-11-23 14:46:31,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2022-11-23 14:46:31,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2022-11-23 14:46:31,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2022-11-23 14:46:31,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2022-11-23 14:46:31,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2022-11-23 14:46:31,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2022-11-23 14:46:31,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2022-11-23 14:46:31,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2022-11-23 14:46:31,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2022-11-23 14:46:31,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2022-11-23 14:46:31,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2022-11-23 14:46:31,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2022-11-23 14:46:31,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2022-11-23 14:46:31,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2022-11-23 14:46:31,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2022-11-23 14:46:31,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2022-11-23 14:46:31,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2022-11-23 14:46:31,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2022-11-23 14:46:31,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2022-11-23 14:46:31,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2022-11-23 14:46:31,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2022-11-23 14:46:31,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2022-11-23 14:46:31,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2022-11-23 14:46:31,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2022-11-23 14:46:31,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2022-11-23 14:46:31,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:46:31,350 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 14:46:31,351 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 14:46:31,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-23 14:46:31,441 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 14:46:31,445 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:46:31,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 412 places, 424 transitions, 869 flow [2022-11-23 14:46:31,446 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 412 places, 424 transitions, 869 flow [2022-11-23 14:46:31,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 412 places, 424 transitions, 869 flow [2022-11-23 14:46:31,695 INFO L130 PetriNetUnfolder]: 22/461 cut-off events. [2022-11-23 14:46:31,695 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-23 14:46:31,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 461 events. 22/461 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1723 event pairs, 0 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 397. Up to 8 conditions per place. [2022-11-23 14:46:31,744 INFO L119 LiptonReduction]: Number of co-enabled transitions 109824 [2022-11-23 14:54:46,760 INFO L134 LiptonReduction]: Checked pairs total: 798303 [2022-11-23 14:54:46,761 INFO L136 LiptonReduction]: Total number of compositions: 476 [2022-11-23 14:54:46,762 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 216 places, 224 transitions, 469 flow