./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/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_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/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_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- 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 00:14:55,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:14:55,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:14:55,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:14:55,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:14:55,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:14:55,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:14:55,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:14:55,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:14:55,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:14:55,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:14:55,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:14:55,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:14:55,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:14:55,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:14:55,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:14:55,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:14:55,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:14:55,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:14:55,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:14:55,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:14:55,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:14:55,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:14:55,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:14:55,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:14:55,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:14:55,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:14:55,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:14:55,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:14:55,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:14:55,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:14:55,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:14:55,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:14:55,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:14:55,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:14:55,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:14:55,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:14:55,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:14:55,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:14:55,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:14:55,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:14:55,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:14:55,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:14:55,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:14:55,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:14:55,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:14:55,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:14:55,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:14:55,720 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:14:55,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:14:55,721 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:14:55,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:14:55,722 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:14:55,723 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:14:55,723 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:14:55,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:14:55,724 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:14:55,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:14:55,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:14:55,724 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:14:55,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:14:55,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:14:55,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:14:55,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:14:55,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:14:55,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:14:55,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:14:55,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:14:55,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:14:55,728 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:14:55,728 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:14:55,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:14:55,729 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:14:55,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:14:55,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:14:55,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:14:55,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:14:55,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:14:55,731 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:14:55,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:14:55,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:14:55,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:14:55,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:14:55,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:14:55,732 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:14:55,733 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_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2022-11-26 00:14:56,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:14:56,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:14:56,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:14:56,145 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:14:56,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:14:56,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-11-26 00:14:59,754 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:15:00,093 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:15:00,102 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2022-11-26 00:15:00,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/data/327088494/c4826a4be94c4ae3a897361c8586c11a/FLAGeadb84f9a [2022-11-26 00:15:00,142 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/data/327088494/c4826a4be94c4ae3a897361c8586c11a [2022-11-26 00:15:00,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:15:00,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:15:00,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:00,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:15:00,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:15:00,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:00" (1/1) ... [2022-11-26 00:15:00,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c75d603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:00, skipping insertion in model container [2022-11-26 00:15:00,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:15:00" (1/1) ... [2022-11-26 00:15:00,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:15:00,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:15:00,489 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_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-11-26 00:15:00,957 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:00,965 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:00,969 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:00,983 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:00,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:01,004 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:15:01,018 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_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2022-11-26 00:15:01,073 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:01,076 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:01,086 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:01,092 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-11-26 00:15:01,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:15:01,156 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:15:01,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01 WrapperNode [2022-11-26 00:15:01,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:15:01,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:01,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:15:01,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:15:01,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,252 INFO L138 Inliner]: procedures = 271, calls = 45, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2022-11-26 00:15:01,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:15:01,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:15:01,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:15:01,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:15:01,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,302 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:15:01,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:15:01,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:15:01,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:15:01,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (1/1) ... [2022-11-26 00:15:01,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:15:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:15:01,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:15:01,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2fe392f-fd42-4a9c-b7c4-438df647a0dd/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:15:01,432 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2022-11-26 00:15:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:15:01,433 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2022-11-26 00:15:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2022-11-26 00:15:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure process [2022-11-26 00:15:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2022-11-26 00:15:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:15:01,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:15:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:15:01,436 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 00:15:01,794 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:15:01,797 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:15:02,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:15:02,214 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:15:02,215 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:15:02,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:02 BoogieIcfgContainer [2022-11-26 00:15:02,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:15:02,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:15:02,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:15:02,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:15:02,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:15:00" (1/3) ... [2022-11-26 00:15:02,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102abeeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:02, skipping insertion in model container [2022-11-26 00:15:02,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:15:01" (2/3) ... [2022-11-26 00:15:02,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102abeeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:15:02, skipping insertion in model container [2022-11-26 00:15:02,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:15:02" (3/3) ... [2022-11-26 00:15:02,228 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2022-11-26 00:15:02,239 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:15:02,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:15:02,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-26 00:15:02,254 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:15:02,374 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:15:02,423 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:15:02,452 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 212 places, 214 transitions, 443 flow [2022-11-26 00:15:02,463 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 212 places, 214 transitions, 443 flow [2022-11-26 00:15:02,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 212 places, 214 transitions, 443 flow [2022-11-26 00:15:02,636 INFO L130 PetriNetUnfolder]: 12/211 cut-off events. [2022-11-26 00:15:02,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:15:02,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 211 events. 12/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 483 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 179. Up to 2 conditions per place. [2022-11-26 00:15:02,664 INFO L119 LiptonReduction]: Number of co-enabled transitions 20632 [2022-11-26 00:15:10,864 INFO L134 LiptonReduction]: Checked pairs total: 154064 [2022-11-26 00:15:10,865 INFO L136 LiptonReduction]: Total number of compositions: 171 [2022-11-26 00:15:10,876 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 91 transitions, 197 flow [2022-11-26 00:15:15,772 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82105 states, 81836 states have (on average 4.254582335402512) internal successors, (348178), 82104 states have internal predecessors, (348178), 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 00:15:15,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:15:15,936 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;@563f029e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:15:15,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-26 00:15:16,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 82105 states, 81836 states have (on average 4.254582335402512) internal successors, (348178), 82104 states have internal predecessors, (348178), 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 00:15:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:15:16,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:16,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:15:16,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting processErr5ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-26 00:15:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1550713166, now seen corresponding path program 1 times [2022-11-26 00:15:16,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:16,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100336339] [2022-11-26 00:15:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:16,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:16,685 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 00:15:16,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:16,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100336339] [2022-11-26 00:15:16,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100336339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:16,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:16,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:15:16,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853447170] [2022-11-26 00:15:16,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:16,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:15:16,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:16,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:15:16,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:15:16,981 INFO L87 Difference]: Start difference. First operand has 82105 states, 81836 states have (on average 4.254582335402512) internal successors, (348178), 82104 states have internal predecessors, (348178), 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 6.0) internal successors, (6), 2 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 00:15:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:19,204 INFO L93 Difference]: Finished difference Result 72074 states and 295154 transitions. [2022-11-26 00:15:19,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:15:19,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 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 00:15:19,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:20,559 INFO L225 Difference]: With dead ends: 72074 [2022-11-26 00:15:20,560 INFO L226 Difference]: Without dead ends: 72074 [2022-11-26 00:15:20,561 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 [2022-11-26 00:15:20,568 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:20,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:15:20,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72074 states. [2022-11-26 00:15:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72074 to 72074. [2022-11-26 00:15:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72074 states, 71930 states have (on average 4.103350479632977) internal successors, (295154), 72073 states have internal predecessors, (295154), 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 00:15:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72074 states to 72074 states and 295154 transitions. [2022-11-26 00:15:26,316 INFO L78 Accepts]: Start accepts. Automaton has 72074 states and 295154 transitions. Word has length 6 [2022-11-26 00:15:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:26,317 INFO L495 AbstractCegarLoop]: Abstraction has 72074 states and 295154 transitions. [2022-11-26 00:15:26,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 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 00:15:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 72074 states and 295154 transitions. [2022-11-26 00:15:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:15:26,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:26,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:26,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:15:26,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting generateErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-26 00:15:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:26,321 INFO L85 PathProgramCache]: Analyzing trace with hash 808839117, now seen corresponding path program 1 times [2022-11-26 00:15:26,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:26,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113302779] [2022-11-26 00:15:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:26,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:26,455 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 00:15:26,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:26,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113302779] [2022-11-26 00:15:26,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113302779] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:26,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:26,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:15:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999124891] [2022-11-26 00:15:26,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:26,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:26,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:26,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:26,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:26,471 INFO L87 Difference]: Start difference. First operand 72074 states and 295154 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 00:15:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:27,960 INFO L93 Difference]: Finished difference Result 84038 states and 344169 transitions. [2022-11-26 00:15:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:27,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-26 00:15:27,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:28,423 INFO L225 Difference]: With dead ends: 84038 [2022-11-26 00:15:28,424 INFO L226 Difference]: Without dead ends: 84038 [2022-11-26 00:15:28,424 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 00:15:28,425 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:28,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 86 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:15:29,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84038 states. [2022-11-26 00:15:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84038 to 78048. [2022-11-26 00:15:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78048 states, 77904 states have (on average 4.102895871842267) internal successors, (319632), 78047 states have internal predecessors, (319632), 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 00:15:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78048 states to 78048 states and 319632 transitions. [2022-11-26 00:15:33,201 INFO L78 Accepts]: Start accepts. Automaton has 78048 states and 319632 transitions. Word has length 7 [2022-11-26 00:15:33,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:33,201 INFO L495 AbstractCegarLoop]: Abstraction has 78048 states and 319632 transitions. [2022-11-26 00:15:33,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 00:15:33,202 INFO L276 IsEmpty]: Start isEmpty. Operand 78048 states and 319632 transitions. [2022-11-26 00:15:33,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:15:33,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:33,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:33,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:15:33,204 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-26 00:15:33,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:33,209 INFO L85 PathProgramCache]: Analyzing trace with hash -118397620, now seen corresponding path program 1 times [2022-11-26 00:15:33,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:33,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840609253] [2022-11-26 00:15:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:33,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:33,354 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 00:15:33,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:33,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840609253] [2022-11-26 00:15:33,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840609253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:33,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:33,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:15:33,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301269421] [2022-11-26 00:15:33,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:33,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:33,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:33,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:33,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:33,358 INFO L87 Difference]: Start difference. First operand 78048 states and 319632 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:35,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:35,349 INFO L93 Difference]: Finished difference Result 137564 states and 553398 transitions. [2022-11-26 00:15:35,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:35,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:15:35,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:37,353 INFO L225 Difference]: With dead ends: 137564 [2022-11-26 00:15:37,353 INFO L226 Difference]: Without dead ends: 137564 [2022-11-26 00:15:37,354 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 00:15:37,355 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:37,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 66 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:15:37,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137564 states. [2022-11-26 00:15:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137564 to 87600. [2022-11-26 00:15:40,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87600 states, 87464 states have (on average 4.069331382054331) internal successors, (355920), 87599 states have internal predecessors, (355920), 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 00:15:41,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87600 states to 87600 states and 355920 transitions. [2022-11-26 00:15:41,418 INFO L78 Accepts]: Start accepts. Automaton has 87600 states and 355920 transitions. Word has length 8 [2022-11-26 00:15:41,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:41,418 INFO L495 AbstractCegarLoop]: Abstraction has 87600 states and 355920 transitions. [2022-11-26 00:15:41,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:41,418 INFO L276 IsEmpty]: Start isEmpty. Operand 87600 states and 355920 transitions. [2022-11-26 00:15:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:15:41,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:41,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:41,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:15:41,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting generateErr1ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-26 00:15:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1360242402, now seen corresponding path program 1 times [2022-11-26 00:15:41,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:41,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293725429] [2022-11-26 00:15:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:41,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:41,548 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 00:15:41,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:41,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293725429] [2022-11-26 00:15:41,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293725429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:41,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:41,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:15:41,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500912564] [2022-11-26 00:15:41,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:41,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:41,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:41,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:41,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:41,557 INFO L87 Difference]: Start difference. First operand 87600 states and 355920 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:43,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:43,433 INFO L93 Difference]: Finished difference Result 98204 states and 397157 transitions. [2022-11-26 00:15:43,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:43,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:15:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:43,957 INFO L225 Difference]: With dead ends: 98204 [2022-11-26 00:15:43,957 INFO L226 Difference]: Without dead ends: 98204 [2022-11-26 00:15:43,957 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 00:15:43,959 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:43,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 86 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:15:44,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98204 states. [2022-11-26 00:15:47,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98204 to 92222. [2022-11-26 00:15:47,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92222 states, 92094 states have (on average 4.055204465003149) internal successors, (373460), 92221 states have internal predecessors, (373460), 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 00:15:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92222 states to 92222 states and 373460 transitions. [2022-11-26 00:15:48,372 INFO L78 Accepts]: Start accepts. Automaton has 92222 states and 373460 transitions. Word has length 10 [2022-11-26 00:15:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:48,373 INFO L495 AbstractCegarLoop]: Abstraction has 92222 states and 373460 transitions. [2022-11-26 00:15:48,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 92222 states and 373460 transitions. [2022-11-26 00:15:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:15:48,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:48,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:48,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:15:48,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting disposeErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-26 00:15:48,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:48,376 INFO L85 PathProgramCache]: Analyzing trace with hash 790887313, now seen corresponding path program 1 times [2022-11-26 00:15:48,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:48,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961145850] [2022-11-26 00:15:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:48,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:48,607 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 00:15:48,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:48,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961145850] [2022-11-26 00:15:48,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961145850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:48,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:48,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:15:48,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729275517] [2022-11-26 00:15:48,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:48,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:48,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:48,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:48,610 INFO L87 Difference]: Start difference. First operand 92222 states and 373460 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:51,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:15:51,380 INFO L93 Difference]: Finished difference Result 170351 states and 675395 transitions. [2022-11-26 00:15:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:15:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-26 00:15:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:15:52,268 INFO L225 Difference]: With dead ends: 170351 [2022-11-26 00:15:52,268 INFO L226 Difference]: Without dead ends: 170351 [2022-11-26 00:15:52,268 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 00:15:52,269 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 70 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:15:52,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 97 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:15:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170351 states. [2022-11-26 00:15:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170351 to 110046. [2022-11-26 00:15:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110046 states, 109934 states have (on average 4.0211217639674715) internal successors, (442058), 110045 states have internal predecessors, (442058), 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 00:15:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110046 states to 110046 states and 442058 transitions. [2022-11-26 00:15:57,878 INFO L78 Accepts]: Start accepts. Automaton has 110046 states and 442058 transitions. Word has length 10 [2022-11-26 00:15:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:15:57,879 INFO L495 AbstractCegarLoop]: Abstraction has 110046 states and 442058 transitions. [2022-11-26 00:15:57,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:15:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 110046 states and 442058 transitions. [2022-11-26 00:15:57,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:15:57,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:15:57,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:15:57,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:15:57,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-26 00:15:57,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:15:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1506407164, now seen corresponding path program 1 times [2022-11-26 00:15:57,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:15:57,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173327750] [2022-11-26 00:15:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:15:57,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:15:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:15:58,049 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 00:15:58,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:15:58,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173327750] [2022-11-26 00:15:58,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173327750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:15:58,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:15:58,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:15:58,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962838162] [2022-11-26 00:15:58,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:15:58,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:15:58,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:15:58,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:15:58,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:15:58,052 INFO L87 Difference]: Start difference. First operand 110046 states and 442058 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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)