./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/reorder_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur --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 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 --- 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-38b53e6 [2022-11-26 00:12:12,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:12:12,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:12:12,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:12:12,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:12:12,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:12:12,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:12:12,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:12:12,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:12:12,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:12:12,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:12:12,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:12:12,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:12:12,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:12:12,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:12:13,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:12:13,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:12:13,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:12:13,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:12:13,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:12:13,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:12:13,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:12:13,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:12:13,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:12:13,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:12:13,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:12:13,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:12:13,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:12:13,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:12:13,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:12:13,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:12:13,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:12:13,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:12:13,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:12:13,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:12:13,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:12:13,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:12:13,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:12:13,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:12:13,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:12:13,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:12:13,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:12:13,084 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:12:13,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:12:13,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:12:13,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:12:13,087 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:12:13,087 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:12:13,087 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:12:13,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:12:13,088 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:12:13,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:12:13,089 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:12:13,090 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:12:13,090 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:12:13,090 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:12:13,091 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:12:13,091 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:12:13,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:12:13,091 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:12:13,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:12:13,092 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:12:13,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:12:13,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:12:13,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:12:13,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:12:13,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:12:13,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:12:13,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:12:13,095 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:12:13,095 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:12:13,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:12:13,096 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:12:13,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:12:13,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:12:13,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:12:13,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:13,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:12:13,099 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:12:13,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:12:13,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:12:13,100 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:12:13,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:12:13,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:12:13,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:12:13,101 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_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 [2022-11-26 00:12:13,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:12:13,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:12:13,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:12:13,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:12:13,467 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:12:13,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread/reorder_2.i [2022-11-26 00:12:16,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:12:17,023 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:12:17,023 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/sv-benchmarks/c/pthread/reorder_2.i [2022-11-26 00:12:17,046 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/data/8fef63d5a/4f5c0fa4bbf144e68bfcc986af255a9c/FLAG08a16315a [2022-11-26 00:12:17,065 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/data/8fef63d5a/4f5c0fa4bbf144e68bfcc986af255a9c [2022-11-26 00:12:17,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:12:17,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:12:17,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:17,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:12:17,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:12:17,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:17" (1/1) ... [2022-11-26 00:12:17,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32d8c56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:17, skipping insertion in model container [2022-11-26 00:12:17,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:17" (1/1) ... [2022-11-26 00:12:17,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:12:17,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:12:17,780 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,801 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,805 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,812 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,816 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,831 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,833 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_7aa5b15b-6518-47a2-ab96-427573fce964/sv-benchmarks/c/pthread/reorder_2.i[59793,59806] [2022-11-26 00:12:17,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:12:17,844 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:12:17,883 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,890 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,892 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,907 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,913 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,926 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-26 00:12:17,928 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_7aa5b15b-6518-47a2-ab96-427573fce964/sv-benchmarks/c/pthread/reorder_2.i[59793,59806] [2022-11-26 00:12:17,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:12:18,030 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:12:18,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18 WrapperNode [2022-11-26 00:12:18,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:18,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:12:18,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:12:18,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:12:18,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,118 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 199 [2022-11-26 00:12:18,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:12:18,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:12:18,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:12:18,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:12:18,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,182 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:12:18,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:12:18,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:12:18,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:12:18,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (1/1) ... [2022-11-26 00:12:18,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:18,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:18,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:12:18,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aa5b15b-6518-47a2-ab96-427573fce964/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:12:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:12:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:12:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:12:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-26 00:12:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-26 00:12:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:12:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:12:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-26 00:12:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-26 00:12:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:12:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:12:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:12:18,275 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:12:18,421 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:12:18,423 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:12:19,088 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:12:19,097 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:12:19,109 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:12:19,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:19 BoogieIcfgContainer [2022-11-26 00:12:19,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:12:19,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:12:19,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:12:19,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:12:19,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:12:17" (1/3) ... [2022-11-26 00:12:19,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6f3888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:19, skipping insertion in model container [2022-11-26 00:12:19,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:18" (2/3) ... [2022-11-26 00:12:19,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6f3888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:19, skipping insertion in model container [2022-11-26 00:12:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:19" (3/3) ... [2022-11-26 00:12:19,121 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2.i [2022-11-26 00:12:19,131 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:12:19,142 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:12:19,142 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-26 00:12:19,143 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:12:19,276 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-26 00:12:19,313 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:12:19,329 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 278 transitions, 578 flow [2022-11-26 00:12:19,332 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 278 transitions, 578 flow [2022-11-26 00:12:19,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 278 transitions, 578 flow [2022-11-26 00:12:19,545 INFO L130 PetriNetUnfolder]: 41/597 cut-off events. [2022-11-26 00:12:19,545 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-26 00:12:19,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 597 events. 41/597 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2598 event pairs, 0 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 302. Up to 8 conditions per place. [2022-11-26 00:12:19,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 14204 [2022-11-26 00:12:42,617 WARN L233 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 229 DAG size of output: 221 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:12:53,524 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 236 DAG size of output: 228 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:12:57,500 INFO L134 LiptonReduction]: Checked pairs total: 37952 [2022-11-26 00:12:57,500 INFO L136 LiptonReduction]: Total number of compositions: 302 [2022-11-26 00:12:57,508 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65 places, 67 transitions, 156 flow [2022-11-26 00:12:57,643 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3206 states, 2920 states have (on average 3.0222602739726026) internal successors, (8825), 3205 states have internal predecessors, (8825), 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) [2022-11-26 00:12:57,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:12:57,667 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;@a3fd3c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:12:57,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-26 00:12:57,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 3206 states, 2920 states have (on average 3.0222602739726026) internal successors, (8825), 3205 states have internal predecessors, (8825), 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) [2022-11-26 00:12:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:12:57,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:57,684 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:12:57,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:12:57,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:57,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1013, now seen corresponding path program 1 times [2022-11-26 00:12:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:57,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075038814] [2022-11-26 00:12:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:57,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:57,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:57,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:57,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:57,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075038814] [2022-11-26 00:12:57,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075038814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:57,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:57,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:12:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969731739] [2022-11-26 00:12:57,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:57,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:12:57,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:12:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:12:57,863 INFO L87 Difference]: Start difference. First operand has 3206 states, 2920 states have (on average 3.0222602739726026) internal successors, (8825), 3205 states have internal predecessors, (8825), 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) [2022-11-26 00:12:58,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:58,020 INFO L93 Difference]: Finished difference Result 1840 states and 5015 transitions. [2022-11-26 00:12:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:12:58,023 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 [2022-11-26 00:12:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:58,055 INFO L225 Difference]: With dead ends: 1840 [2022-11-26 00:12:58,057 INFO L226 Difference]: Without dead ends: 1781 [2022-11-26 00:12:58,058 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 [2022-11-26 00:12:58,062 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:58,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:12:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2022-11-26 00:12:58,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2022-11-26 00:12:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1710 states have (on average 2.8362573099415203) internal successors, (4850), 1780 states have internal predecessors, (4850), 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) [2022-11-26 00:12:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 4850 transitions. [2022-11-26 00:12:58,209 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 4850 transitions. Word has length 1 [2022-11-26 00:12:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:58,211 INFO L495 AbstractCegarLoop]: Abstraction has 1781 states and 4850 transitions. [2022-11-26 00:12:58,212 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) [2022-11-26 00:12:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 4850 transitions. [2022-11-26 00:12:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:12:58,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:58,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:12:58,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:12:58,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting setThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:12:58,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:58,222 INFO L85 PathProgramCache]: Analyzing trace with hash -20082410, now seen corresponding path program 1 times [2022-11-26 00:12:58,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:58,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952035548] [2022-11-26 00:12:58,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:58,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:58,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:58,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952035548] [2022-11-26 00:12:58,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952035548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:58,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:58,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:12:58,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402098083] [2022-11-26 00:12:58,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:58,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:12:58,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:12:58,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:12:58,485 INFO L87 Difference]: Start difference. First operand 1781 states and 4850 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) [2022-11-26 00:12:58,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:58,758 INFO L93 Difference]: Finished difference Result 1928 states and 5290 transitions. [2022-11-26 00:12:58,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:12:58,759 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 [2022-11-26 00:12:58,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:58,770 INFO L225 Difference]: With dead ends: 1928 [2022-11-26 00:12:58,770 INFO L226 Difference]: Without dead ends: 1928 [2022-11-26 00:12:58,772 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 [2022-11-26 00:12:58,774 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 37 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:58,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 42 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:58,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2022-11-26 00:12:58,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1928. [2022-11-26 00:12:58,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1858 states have (on average 2.8471474703982778) internal successors, (5290), 1927 states have internal predecessors, (5290), 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) [2022-11-26 00:12:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 5290 transitions. [2022-11-26 00:12:58,886 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 5290 transitions. Word has length 6 [2022-11-26 00:12:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:58,887 INFO L495 AbstractCegarLoop]: Abstraction has 1928 states and 5290 transitions. [2022-11-26 00:12:58,887 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) [2022-11-26 00:12:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 5290 transitions. [2022-11-26 00:12:58,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:12:58,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:58,888 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-26 00:12:58,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:12:58,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-26 00:12:58,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:58,889 INFO L85 PathProgramCache]: Analyzing trace with hash -19818732, now seen corresponding path program 1 times [2022-11-26 00:12:58,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:58,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198292191] [2022-11-26 00:12:58,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:58,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:12:59,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:12:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:12:59,130 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:12:59,130 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:12:59,131 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-26 00:12:59,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-26 00:12:59,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-26 00:12:59,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-26 00:12:59,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-26 00:12:59,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-26 00:12:59,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-26 00:12:59,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-26 00:12:59,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-26 00:12:59,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-26 00:12:59,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-26 00:12:59,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-26 00:12:59,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-26 00:12:59,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-26 00:12:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-26 00:12:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-26 00:12:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-26 00:12:59,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-26 00:12:59,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-26 00:12:59,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-11-26 00:12:59,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-11-26 00:12:59,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-26 00:12:59,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-26 00:12:59,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 31 remaining) [2022-11-26 00:12:59,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-26 00:12:59,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-26 00:12:59,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-26 00:12:59,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-26 00:12:59,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-26 00:12:59,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-26 00:12:59,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-26 00:12:59,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:12:59,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:12:59,145 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-26 00:12:59,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-26 00:12:59,182 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-26 00:12:59,186 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:12:59,187 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 340 transitions, 728 flow [2022-11-26 00:12:59,187 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 340 transitions, 728 flow [2022-11-26 00:12:59,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 340 transitions, 728 flow [2022-11-26 00:12:59,656 INFO L130 PetriNetUnfolder]: 165/1885 cut-off events. [2022-11-26 00:12:59,656 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-26 00:12:59,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 1885 events. 165/1885 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11618 event pairs, 2 based on Foata normal form. 0/1580 useless extension candidates. Maximal degree in co-relation 1076. Up to 32 conditions per place. [2022-11-26 00:12:59,727 INFO L119 LiptonReduction]: Number of co-enabled transitions 35748 [2022-11-26 00:13:25,221 WARN L233 SmtUtils]: Spent 8.84s on a formula simplification. DAG size of input: 220 DAG size of output: 212 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:13:41,536 WARN L233 SmtUtils]: Spent 11.68s on a formula simplification. DAG size of input: 227 DAG size of output: 219 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:13:47,272 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification that was a NOOP. DAG size: 219 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-26 00:13:47,559 INFO L134 LiptonReduction]: Checked pairs total: 125191 [2022-11-26 00:13:47,559 INFO L136 LiptonReduction]: Total number of compositions: 343 [2022-11-26 00:13:47,561 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 103 transitions, 254 flow [2022-11-26 00:14:10,554 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 632918 states, 625819 states have (on average 4.703296000920394) internal successors, (2943412), 632917 states have internal predecessors, (2943412), 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) [2022-11-26 00:14:10,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:14:10,568 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;@a3fd3c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:14:10,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-26 00:14:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 632918 states, 625819 states have (on average 4.703296000920394) internal successors, (2943412), 632917 states have internal predecessors, (2943412), 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) [2022-11-26 00:14:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-26 00:14:13,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:14:13,654 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-26 00:14:13,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-11-26 00:14:13,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:14:13,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1760, now seen corresponding path program 1 times [2022-11-26 00:14:13,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:14:13,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829500449] [2022-11-26 00:14:13,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:14:13,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:14:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:14:13,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:14:13,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:14:13,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829500449] [2022-11-26 00:14:13,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829500449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:14:13,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:14:13,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-26 00:14:13,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701806633] [2022-11-26 00:14:13,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:14:13,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:14:13,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:14:13,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:14:13,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:14:14,853 INFO L87 Difference]: Start difference. First operand has 632918 states, 625819 states have (on average 4.703296000920394) internal successors, (2943412), 632917 states have internal predecessors, (2943412), 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) [2022-11-26 00:14:22,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:14:22,560 INFO L93 Difference]: Finished difference Result 355063 states and 1649988 transitions. [2022-11-26 00:14:22,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:14:22,561 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 [2022-11-26 00:14:22,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:14:27,156 INFO L225 Difference]: With dead ends: 355063 [2022-11-26 00:14:27,156 INFO L226 Difference]: Without dead ends: 354524 [2022-11-26 00:14:27,156 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 [2022-11-26 00:14:27,157 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:14:27,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:14:28,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354524 states.