./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4e7fbc69 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_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:43:52,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:43:52,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:43:52,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:43:52,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:43:52,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:43:52,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:43:52,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:43:52,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:43:52,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:43:52,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:43:52,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:43:52,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:43:52,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:43:52,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:43:52,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:43:52,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:43:52,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:43:52,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:43:52,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:43:52,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:43:52,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:43:52,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:43:52,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:43:52,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:43:52,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:43:52,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:43:52,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:43:52,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:43:52,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:43:52,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:43:52,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:43:52,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:43:52,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:43:52,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:43:52,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:43:53,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:43:53,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:43:53,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:43:53,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:43:53,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:43:53,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-23 14:43:53,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:43:53,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:43:53,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:43:53,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:43:53,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:43:53,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:43:53,048 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:43:53,048 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:43:53,048 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:43:53,048 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:43:53,049 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:43:53,050 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:43:53,050 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:43:53,050 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:43:53,050 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:43:53,051 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:43:53,051 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:43:53,051 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:43:53,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:43:53,053 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:43:53,053 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:43:53,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:43:53,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:43:53,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:43:53,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:43:53,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:43:53,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:43:53,054 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-23 14:43:53,055 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:43:53,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:43:53,055 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:43:53,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:43:53,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:43:53,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:43:53,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:53,056 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:43:53,056 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:43:53,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:43:53,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:43:53,057 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:43:53,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:43:53,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:43:53,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:43:53,058 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_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529fe0895c01c52d9b18b51c32204a307faf547c0c07b22bc1a431308affcf90 [2022-11-23 14:43:53,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:43:53,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:43:53,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:43:53,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:43:53,407 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:43:53,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/pthread/stack_longest-1.i [2022-11-23 14:43:56,423 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:43:56,683 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:43:56,684 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/sv-benchmarks/c/pthread/stack_longest-1.i [2022-11-23 14:43:56,701 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/data/3043de000/e22cc55262ee4d09a86c7a92baba56cd/FLAGa78cce38a [2022-11-23 14:43:56,716 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/data/3043de000/e22cc55262ee4d09a86c7a92baba56cd [2022-11-23 14:43:56,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:43:56,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:43:56,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:56,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:43:56,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:43:56,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:56" (1/1) ... [2022-11-23 14:43:56,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a858f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:56, skipping insertion in model container [2022-11-23 14:43:56,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:43:56" (1/1) ... [2022-11-23 14:43:56,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:43:56,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:43:57,345 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_123ea466-7e27-4326-8c68-e4452b8aa278/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2022-11-23 14:43:57,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:57,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:43:57,461 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_123ea466-7e27-4326-8c68-e4452b8aa278/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2022-11-23 14:43:57,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:43:57,553 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:43:57,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57 WrapperNode [2022-11-23 14:43:57,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:43:57,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:57,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:43:57,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:43:57,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,631 INFO L138 Inliner]: procedures = 277, calls = 39, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 203 [2022-11-23 14:43:57,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:43:57,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:43:57,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:43:57,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:43:57,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:43:57,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:43:57,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:43:57,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:43:57,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (1/1) ... [2022-11-23 14:43:57,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:43:57,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:43:57,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:43:57,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:43:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-23 14:43:57,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-23 14:43:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-23 14:43:57,761 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-23 14:43:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:43:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:43:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:43:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:43:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 14:43:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:43:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:43:57,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:43:57,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:43:57,764 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 14:43:57,968 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:43:57,970 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:43:58,336 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:43:58,345 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:43:58,345 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:43:58,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:58 BoogieIcfgContainer [2022-11-23 14:43:58,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:43:58,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:43:58,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:43:58,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:43:58,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:43:56" (1/3) ... [2022-11-23 14:43:58,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397d3aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:58, skipping insertion in model container [2022-11-23 14:43:58,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:43:57" (2/3) ... [2022-11-23 14:43:58,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397d3aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:43:58, skipping insertion in model container [2022-11-23 14:43:58,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:58" (3/3) ... [2022-11-23 14:43:58,358 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2022-11-23 14:43:58,367 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 14:43:58,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:43:58,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-23 14:43:58,378 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 14:43:58,508 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 14:43:58,553 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 14:43:58,567 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 236 places, 239 transitions, 494 flow [2022-11-23 14:43:58,571 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 236 places, 239 transitions, 494 flow [2022-11-23 14:43:58,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 239 transitions, 494 flow [2022-11-23 14:43:58,748 INFO L130 PetriNetUnfolder]: 10/237 cut-off events. [2022-11-23 14:43:58,748 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 14:43:58,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 237 events. 10/237 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 584 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2022-11-23 14:43:58,771 INFO L119 LiptonReduction]: Number of co-enabled transitions 20432 [2022-11-23 14:44:04,758 INFO L134 LiptonReduction]: Checked pairs total: 71188 [2022-11-23 14:44:04,760 INFO L136 LiptonReduction]: Total number of compositions: 172 [2022-11-23 14:44:04,775 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 89 transitions, 194 flow [2022-11-23 14:44:05,080 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7968 states, 7863 states have (on average 3.042223070075035) internal successors, (23921), 7967 states have internal predecessors, (23921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:05,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:44:05,106 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;@17af3615, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:44:05,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-23 14:44:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 7968 states, 7863 states have (on average 3.042223070075035) internal successors, (23921), 7967 states have internal predecessors, (23921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:05,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:44:05,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:05,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:44:05,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:05,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:05,140 INFO L85 PathProgramCache]: Analyzing trace with hash 859358654, now seen corresponding path program 1 times [2022-11-23 14:44:05,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:05,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392482585] [2022-11-23 14:44:05,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:05,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:05,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392482585] [2022-11-23 14:44:05,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392482585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:05,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:05,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:05,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588835185] [2022-11-23 14:44:05,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:05,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:44:05,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:05,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:44:05,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:44:05,434 INFO L87 Difference]: Start difference. First operand has 7968 states, 7863 states have (on average 3.042223070075035) internal successors, (23921), 7967 states have internal predecessors, (23921), 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, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:05,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:05,641 INFO L93 Difference]: Finished difference Result 7968 states and 23421 transitions. [2022-11-23 14:44:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:44:05,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-23 14:44:05,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:05,727 INFO L225 Difference]: With dead ends: 7968 [2022-11-23 14:44:05,727 INFO L226 Difference]: Without dead ends: 7967 [2022-11-23 14:44:05,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:44:05,734 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:05,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:05,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7967 states. [2022-11-23 14:44:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7967 to 7967. [2022-11-23 14:44:06,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7967 states, 7863 states have (on average 2.9783797532748313) internal successors, (23419), 7966 states have internal predecessors, (23419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:06,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7967 states to 7967 states and 23419 transitions. [2022-11-23 14:44:06,300 INFO L78 Accepts]: Start accepts. Automaton has 7967 states and 23419 transitions. Word has length 5 [2022-11-23 14:44:06,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:06,300 INFO L495 AbstractCegarLoop]: Abstraction has 7967 states and 23419 transitions. [2022-11-23 14:44:06,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7967 states and 23419 transitions. [2022-11-23 14:44:06,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:44:06,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:06,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:44:06,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:44:06,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:06,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash 870311023, now seen corresponding path program 1 times [2022-11-23 14:44:06,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:06,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057404814] [2022-11-23 14:44:06,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:06,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:06,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:06,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057404814] [2022-11-23 14:44:06,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057404814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:06,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:06,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:06,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127894160] [2022-11-23 14:44:06,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:06,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:06,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:06,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:06,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:06,427 INFO L87 Difference]: Start difference. First operand 7967 states and 23419 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:06,695 INFO L93 Difference]: Finished difference Result 10904 states and 30675 transitions. [2022-11-23 14:44:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:06,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 14:44:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:06,782 INFO L225 Difference]: With dead ends: 10904 [2022-11-23 14:44:06,782 INFO L226 Difference]: Without dead ends: 10904 [2022-11-23 14:44:06,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:06,784 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 67 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:06,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 79 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10904 states. [2022-11-23 14:44:07,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10904 to 8174. [2022-11-23 14:44:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8174 states, 8088 states have (on average 2.84582096933729) internal successors, (23017), 8173 states have internal predecessors, (23017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:07,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8174 states to 8174 states and 23017 transitions. [2022-11-23 14:44:07,266 INFO L78 Accepts]: Start accepts. Automaton has 8174 states and 23017 transitions. Word has length 6 [2022-11-23 14:44:07,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:07,266 INFO L495 AbstractCegarLoop]: Abstraction has 8174 states and 23017 transitions. [2022-11-23 14:44:07,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:07,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8174 states and 23017 transitions. [2022-11-23 14:44:07,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:44:07,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:07,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:07,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:44:07,270 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash -582689793, now seen corresponding path program 1 times [2022-11-23 14:44:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025335026] [2022-11-23 14:44:07,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:07,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:07,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:07,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025335026] [2022-11-23 14:44:07,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025335026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:07,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:07,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:07,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705921191] [2022-11-23 14:44:07,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:07,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:07,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:07,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:07,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:07,397 INFO L87 Difference]: Start difference. First operand 8174 states and 23017 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) [2022-11-23 14:44:07,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:07,677 INFO L93 Difference]: Finished difference Result 14610 states and 41729 transitions. [2022-11-23 14:44:07,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:07,678 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 [2022-11-23 14:44:07,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:07,754 INFO L225 Difference]: With dead ends: 14610 [2022-11-23 14:44:07,755 INFO L226 Difference]: Without dead ends: 14610 [2022-11-23 14:44:07,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:07,759 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 75 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:07,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 101 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14610 states. [2022-11-23 14:44:08,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14610 to 8365. [2022-11-23 14:44:08,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8365 states, 8285 states have (on average 2.8744719372359686) internal successors, (23815), 8364 states have internal predecessors, (23815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:08,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8365 states to 8365 states and 23815 transitions. [2022-11-23 14:44:08,224 INFO L78 Accepts]: Start accepts. Automaton has 8365 states and 23815 transitions. Word has length 8 [2022-11-23 14:44:08,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:08,225 INFO L495 AbstractCegarLoop]: Abstraction has 8365 states and 23815 transitions. [2022-11-23 14:44:08,225 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) [2022-11-23 14:44:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 8365 states and 23815 transitions. [2022-11-23 14:44:08,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:44:08,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:08,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:08,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:44:08,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:08,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:08,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1055933437, now seen corresponding path program 1 times [2022-11-23 14:44:08,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:08,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938241603] [2022-11-23 14:44:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:08,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:08,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:08,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938241603] [2022-11-23 14:44:08,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938241603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:08,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:08,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:08,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281959983] [2022-11-23 14:44:08,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:08,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:08,288 INFO L87 Difference]: Start difference. First operand 8365 states and 23815 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2022-11-23 14:44:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:08,497 INFO L93 Difference]: Finished difference Result 11315 states and 32257 transitions. [2022-11-23 14:44:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:08,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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 [2022-11-23 14:44:08,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:08,618 INFO L225 Difference]: With dead ends: 11315 [2022-11-23 14:44:08,618 INFO L226 Difference]: Without dead ends: 11297 [2022-11-23 14:44:08,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:08,622 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 52 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:08,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 86 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:08,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11297 states. [2022-11-23 14:44:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11297 to 10854. [2022-11-23 14:44:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10854 states, 10774 states have (on average 2.922312975682198) internal successors, (31485), 10853 states have internal predecessors, (31485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10854 states to 10854 states and 31485 transitions. [2022-11-23 14:44:09,033 INFO L78 Accepts]: Start accepts. Automaton has 10854 states and 31485 transitions. Word has length 10 [2022-11-23 14:44:09,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:09,033 INFO L495 AbstractCegarLoop]: Abstraction has 10854 states and 31485 transitions. [2022-11-23 14:44:09,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 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) [2022-11-23 14:44:09,034 INFO L276 IsEmpty]: Start isEmpty. Operand 10854 states and 31485 transitions. [2022-11-23 14:44:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:44:09,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:09,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:09,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:44:09,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:09,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2022678444, now seen corresponding path program 1 times [2022-11-23 14:44:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:09,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482307603] [2022-11-23 14:44:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:09,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:09,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:09,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:09,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482307603] [2022-11-23 14:44:09,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482307603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:09,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:09,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:44:09,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313573074] [2022-11-23 14:44:09,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:09,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:44:09,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:09,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:44:09,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:09,458 INFO L87 Difference]: Start difference. First operand 10854 states and 31485 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-11-23 14:44:10,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:10,050 INFO L93 Difference]: Finished difference Result 17566 states and 50440 transitions. [2022-11-23 14:44:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:44:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 [2022-11-23 14:44:10,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:10,109 INFO L225 Difference]: With dead ends: 17566 [2022-11-23 14:44:10,109 INFO L226 Difference]: Without dead ends: 17566 [2022-11-23 14:44:10,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:10,110 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 237 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:10,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 253 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 14:44:10,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17566 states. [2022-11-23 14:44:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17566 to 15982. [2022-11-23 14:44:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15982 states, 15902 states have (on average 2.965413155577915) internal successors, (47156), 15981 states have internal predecessors, (47156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15982 states to 15982 states and 47156 transitions. [2022-11-23 14:44:10,918 INFO L78 Accepts]: Start accepts. Automaton has 15982 states and 47156 transitions. Word has length 10 [2022-11-23 14:44:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:10,919 INFO L495 AbstractCegarLoop]: Abstraction has 15982 states and 47156 transitions. [2022-11-23 14:44:10,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-11-23 14:44:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 15982 states and 47156 transitions. [2022-11-23 14:44:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 14:44:10,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:10,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:10,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:44:10,925 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:10,925 INFO L85 PathProgramCache]: Analyzing trace with hash 225185360, now seen corresponding path program 1 times [2022-11-23 14:44:10,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:10,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080442790] [2022-11-23 14:44:10,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:10,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:11,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:11,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:11,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080442790] [2022-11-23 14:44:11,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080442790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:11,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:11,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:44:11,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103141010] [2022-11-23 14:44:11,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:11,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:44:11,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:11,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:44:11,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:11,354 INFO L87 Difference]: Start difference. First operand 15982 states and 47156 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:11,845 INFO L93 Difference]: Finished difference Result 17234 states and 50876 transitions. [2022-11-23 14:44:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:44:11,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2022-11-23 14:44:11,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:11,907 INFO L225 Difference]: With dead ends: 17234 [2022-11-23 14:44:11,907 INFO L226 Difference]: Without dead ends: 17234 [2022-11-23 14:44:11,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:11,908 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 124 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:11,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 168 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:44:12,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17234 states. [2022-11-23 14:44:12,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17234 to 17234. [2022-11-23 14:44:12,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17234 states, 17154 states have (on average 2.9658388714002566) internal successors, (50876), 17233 states have internal predecessors, (50876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:12,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17234 states to 17234 states and 50876 transitions. [2022-11-23 14:44:12,634 INFO L78 Accepts]: Start accepts. Automaton has 17234 states and 50876 transitions. Word has length 16 [2022-11-23 14:44:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:12,635 INFO L495 AbstractCegarLoop]: Abstraction has 17234 states and 50876 transitions. [2022-11-23 14:44:12,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 17234 states and 50876 transitions. [2022-11-23 14:44:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:44:12,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:12,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:12,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:44:12,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:12,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash 104189735, now seen corresponding path program 1 times [2022-11-23 14:44:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:12,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594172167] [2022-11-23 14:44:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:12,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:12,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594172167] [2022-11-23 14:44:12,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594172167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:12,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:12,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:44:12,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737462984] [2022-11-23 14:44:12,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:12,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:12,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:12,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:12,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:12,698 INFO L87 Difference]: Start difference. First operand 17234 states and 50876 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:13,063 INFO L93 Difference]: Finished difference Result 23176 states and 68817 transitions. [2022-11-23 14:44:13,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-23 14:44:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:13,147 INFO L225 Difference]: With dead ends: 23176 [2022-11-23 14:44:13,147 INFO L226 Difference]: Without dead ends: 23176 [2022-11-23 14:44:13,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:13,149 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 67 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:13,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 94 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23176 states. [2022-11-23 14:44:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23176 to 17283. [2022-11-23 14:44:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17283 states, 17203 states have (on average 2.9662849502993662) internal successors, (51029), 17282 states have internal predecessors, (51029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:13,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17283 states to 17283 states and 51029 transitions. [2022-11-23 14:44:13,957 INFO L78 Accepts]: Start accepts. Automaton has 17283 states and 51029 transitions. Word has length 17 [2022-11-23 14:44:13,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:13,957 INFO L495 AbstractCegarLoop]: Abstraction has 17283 states and 51029 transitions. [2022-11-23 14:44:13,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 17283 states and 51029 transitions. [2022-11-23 14:44:13,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 14:44:13,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:13,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:13,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:44:13,964 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:13,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:13,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1213291683, now seen corresponding path program 1 times [2022-11-23 14:44:13,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:13,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763729002] [2022-11-23 14:44:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:14,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:14,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763729002] [2022-11-23 14:44:14,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763729002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:14,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:14,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:44:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148289186] [2022-11-23 14:44:14,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:14,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:44:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:44:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:44:14,500 INFO L87 Difference]: Start difference. First operand 17283 states and 51029 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:15,323 INFO L93 Difference]: Finished difference Result 18592 states and 54982 transitions. [2022-11-23 14:44:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:44:15,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-23 14:44:15,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:15,371 INFO L225 Difference]: With dead ends: 18592 [2022-11-23 14:44:15,371 INFO L226 Difference]: Without dead ends: 18592 [2022-11-23 14:44:15,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:44:15,372 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 283 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:15,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 197 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:44:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18592 states. [2022-11-23 14:44:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18592 to 17563. [2022-11-23 14:44:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17563 states, 17491 states have (on average 2.971413869990281) internal successors, (51973), 17562 states have internal predecessors, (51973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17563 states to 17563 states and 51973 transitions. [2022-11-23 14:44:15,938 INFO L78 Accepts]: Start accepts. Automaton has 17563 states and 51973 transitions. Word has length 20 [2022-11-23 14:44:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 17563 states and 51973 transitions. [2022-11-23 14:44:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 17563 states and 51973 transitions. [2022-11-23 14:44:15,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 14:44:15,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:15,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:15,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:44:15,942 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:15,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:15,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1131878533, now seen corresponding path program 1 times [2022-11-23 14:44:15,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:15,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467427394] [2022-11-23 14:44:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:15,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:16,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:16,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467427394] [2022-11-23 14:44:16,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467427394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:16,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:16,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 14:44:16,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759911548] [2022-11-23 14:44:16,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:16,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:44:16,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:16,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:44:16,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:44:16,456 INFO L87 Difference]: Start difference. First operand 17563 states and 51973 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:17,420 INFO L93 Difference]: Finished difference Result 16211 states and 47827 transitions. [2022-11-23 14:44:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 14:44:17,421 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 20 [2022-11-23 14:44:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:17,470 INFO L225 Difference]: With dead ends: 16211 [2022-11-23 14:44:17,470 INFO L226 Difference]: Without dead ends: 16211 [2022-11-23 14:44:17,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2022-11-23 14:44:17,472 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 425 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:17,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 383 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 14:44:17,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16211 states. [2022-11-23 14:44:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16211 to 10488. [2022-11-23 14:44:17,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10488 states, 10449 states have (on average 2.900564647334673) internal successors, (30308), 10487 states have internal predecessors, (30308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10488 states to 10488 states and 30308 transitions. [2022-11-23 14:44:17,917 INFO L78 Accepts]: Start accepts. Automaton has 10488 states and 30308 transitions. Word has length 20 [2022-11-23 14:44:17,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:17,918 INFO L495 AbstractCegarLoop]: Abstraction has 10488 states and 30308 transitions. [2022-11-23 14:44:17,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 10488 states and 30308 transitions. [2022-11-23 14:44:17,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 14:44:17,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:17,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:17,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:44:17,922 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:17,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1988473612, now seen corresponding path program 1 times [2022-11-23 14:44:17,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:17,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125142877] [2022-11-23 14:44:17,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:17,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:17,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:17,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125142877] [2022-11-23 14:44:17,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125142877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:17,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:17,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:17,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638412857] [2022-11-23 14:44:17,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:17,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:17,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:17,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:17,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:17,976 INFO L87 Difference]: Start difference. First operand 10488 states and 30308 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:18,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:18,153 INFO L93 Difference]: Finished difference Result 10633 states and 30724 transitions. [2022-11-23 14:44:18,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:18,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-23 14:44:18,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:18,188 INFO L225 Difference]: With dead ends: 10633 [2022-11-23 14:44:18,189 INFO L226 Difference]: Without dead ends: 10633 [2022-11-23 14:44:18,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:18,190 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 37 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:18,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 83 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:18,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10633 states. [2022-11-23 14:44:18,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10633 to 10633. [2022-11-23 14:44:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10633 states, 10598 states have (on average 2.89903755425552) internal successors, (30724), 10632 states have internal predecessors, (30724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:18,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10633 states to 10633 states and 30724 transitions. [2022-11-23 14:44:18,481 INFO L78 Accepts]: Start accepts. Automaton has 10633 states and 30724 transitions. Word has length 22 [2022-11-23 14:44:18,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:18,481 INFO L495 AbstractCegarLoop]: Abstraction has 10633 states and 30724 transitions. [2022-11-23 14:44:18,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:18,482 INFO L276 IsEmpty]: Start isEmpty. Operand 10633 states and 30724 transitions. [2022-11-23 14:44:18,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 14:44:18,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:18,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:18,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:44:18,486 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:18,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1875046242, now seen corresponding path program 1 times [2022-11-23 14:44:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:18,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122420474] [2022-11-23 14:44:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:18,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:18,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:18,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:18,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122420474] [2022-11-23 14:44:18,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122420474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:18,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:18,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698806667] [2022-11-23 14:44:18,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:18,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:18,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:18,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:18,532 INFO L87 Difference]: Start difference. First operand 10633 states and 30724 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:18,696 INFO L93 Difference]: Finished difference Result 11030 states and 31846 transitions. [2022-11-23 14:44:18,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2022-11-23 14:44:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:18,732 INFO L225 Difference]: With dead ends: 11030 [2022-11-23 14:44:18,732 INFO L226 Difference]: Without dead ends: 11030 [2022-11-23 14:44:18,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:18,733 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 41 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:18,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 98 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:18,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11030 states. [2022-11-23 14:44:18,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11030 to 10785. [2022-11-23 14:44:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10785 states, 10754 states have (on average 2.894271898828343) internal successors, (31125), 10784 states have internal predecessors, (31125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10785 states to 10785 states and 31125 transitions. [2022-11-23 14:44:19,023 INFO L78 Accepts]: Start accepts. Automaton has 10785 states and 31125 transitions. Word has length 25 [2022-11-23 14:44:19,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:19,023 INFO L495 AbstractCegarLoop]: Abstraction has 10785 states and 31125 transitions. [2022-11-23 14:44:19,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,023 INFO L276 IsEmpty]: Start isEmpty. Operand 10785 states and 31125 transitions. [2022-11-23 14:44:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-23 14:44:19,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:19,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:19,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:44:19,028 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:19,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:19,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1052821664, now seen corresponding path program 1 times [2022-11-23 14:44:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:19,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502948329] [2022-11-23 14:44:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:19,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:19,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:19,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502948329] [2022-11-23 14:44:19,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502948329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:19,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:19,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:44:19,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687828930] [2022-11-23 14:44:19,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:19,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:19,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:19,102 INFO L87 Difference]: Start difference. First operand 10785 states and 31125 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:19,180 INFO L93 Difference]: Finished difference Result 1657 states and 4138 transitions. [2022-11-23 14:44:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:19,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2022-11-23 14:44:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:19,184 INFO L225 Difference]: With dead ends: 1657 [2022-11-23 14:44:19,184 INFO L226 Difference]: Without dead ends: 1657 [2022-11-23 14:44:19,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:19,185 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 62 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:19,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 50 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:19,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-11-23 14:44:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1449. [2022-11-23 14:44:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1444 states have (on average 2.4695290858725762) internal successors, (3566), 1448 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3566 transitions. [2022-11-23 14:44:19,211 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3566 transitions. Word has length 29 [2022-11-23 14:44:19,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:19,212 INFO L495 AbstractCegarLoop]: Abstraction has 1449 states and 3566 transitions. [2022-11-23 14:44:19,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3566 transitions. [2022-11-23 14:44:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 14:44:19,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:19,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:19,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:44:19,216 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:19,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:19,216 INFO L85 PathProgramCache]: Analyzing trace with hash 92993676, now seen corresponding path program 1 times [2022-11-23 14:44:19,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:19,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456197965] [2022-11-23 14:44:19,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:19,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:19,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:19,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456197965] [2022-11-23 14:44:19,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456197965] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:19,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15505264] [2022-11-23 14:44:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:19,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:19,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:19,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:19,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:44:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:19,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:44:19,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:19,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:19,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:19,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:19,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15505264] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:19,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [56320644] [2022-11-23 14:44:19,623 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:44:19,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:19,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-23 14:44:19,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898988333] [2022-11-23 14:44:19,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:44:19,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 14:44:19,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:19,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 14:44:19,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:44:19,628 INFO L87 Difference]: Start difference. First operand 1449 states and 3566 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:19,887 INFO L93 Difference]: Finished difference Result 3786 states and 9084 transitions. [2022-11-23 14:44:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:44:19,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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 40 [2022-11-23 14:44:19,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:19,894 INFO L225 Difference]: With dead ends: 3786 [2022-11-23 14:44:19,894 INFO L226 Difference]: Without dead ends: 3786 [2022-11-23 14:44:19,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:44:19,895 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 232 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:19,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 199 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:44:19,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2022-11-23 14:44:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3758. [2022-11-23 14:44:19,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3751 states have (on average 2.4153559050919755) internal successors, (9060), 3757 states have internal predecessors, (9060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 9060 transitions. [2022-11-23 14:44:19,958 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 9060 transitions. Word has length 40 [2022-11-23 14:44:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:19,959 INFO L495 AbstractCegarLoop]: Abstraction has 3758 states and 9060 transitions. [2022-11-23 14:44:19,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 9060 transitions. [2022-11-23 14:44:19,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 14:44:19,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:19,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:19,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:20,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:20,170 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:20,171 INFO L85 PathProgramCache]: Analyzing trace with hash -911041978, now seen corresponding path program 1 times [2022-11-23 14:44:20,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:20,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757896647] [2022-11-23 14:44:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:20,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:20,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:20,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757896647] [2022-11-23 14:44:20,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757896647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:20,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:20,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:44:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859359899] [2022-11-23 14:44:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:20,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:44:20,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:44:20,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:20,276 INFO L87 Difference]: Start difference. First operand 3758 states and 9060 transitions. Second operand has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:20,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:20,391 INFO L93 Difference]: Finished difference Result 3730 states and 8986 transitions. [2022-11-23 14:44:20,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:44:20,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2022-11-23 14:44:20,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:20,397 INFO L225 Difference]: With dead ends: 3730 [2022-11-23 14:44:20,398 INFO L226 Difference]: Without dead ends: 3730 [2022-11-23 14:44:20,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:44:20,399 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 14 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:20,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 65 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:44:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3730 states. [2022-11-23 14:44:20,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3730 to 3730. [2022-11-23 14:44:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3726 states have (on average 2.411701556629093) internal successors, (8986), 3729 states have internal predecessors, (8986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:20,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 8986 transitions. [2022-11-23 14:44:20,490 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 8986 transitions. Word has length 41 [2022-11-23 14:44:20,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:20,490 INFO L495 AbstractCegarLoop]: Abstraction has 3730 states and 8986 transitions. [2022-11-23 14:44:20,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:20,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 8986 transitions. [2022-11-23 14:44:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-23 14:44:20,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:20,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:20,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:44:20,496 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:20,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:20,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1138877309, now seen corresponding path program 1 times [2022-11-23 14:44:20,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:20,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997580583] [2022-11-23 14:44:20,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:20,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:20,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:20,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997580583] [2022-11-23 14:44:20,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997580583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:20,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:44:20,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:44:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805085752] [2022-11-23 14:44:20,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:20,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:44:20,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:20,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:44:20,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:20,883 INFO L87 Difference]: Start difference. First operand 3730 states and 8986 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:21,206 INFO L93 Difference]: Finished difference Result 3702 states and 8912 transitions. [2022-11-23 14:44:21,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:44:21,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2022-11-23 14:44:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:21,212 INFO L225 Difference]: With dead ends: 3702 [2022-11-23 14:44:21,212 INFO L226 Difference]: Without dead ends: 3654 [2022-11-23 14:44:21,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:44:21,213 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 20 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:21,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:44:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3654 states. [2022-11-23 14:44:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3654 to 3654. [2022-11-23 14:44:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3653 states have (on average 2.412811387900356) internal successors, (8814), 3653 states have internal predecessors, (8814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 8814 transitions. [2022-11-23 14:44:21,273 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 8814 transitions. Word has length 50 [2022-11-23 14:44:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:21,274 INFO L495 AbstractCegarLoop]: Abstraction has 3654 states and 8814 transitions. [2022-11-23 14:44:21,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 8814 transitions. [2022-11-23 14:44:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 14:44:21,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:21,282 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:21,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:44:21,282 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:21,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:21,283 INFO L85 PathProgramCache]: Analyzing trace with hash 31696502, now seen corresponding path program 1 times [2022-11-23 14:44:21,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:21,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600978047] [2022-11-23 14:44:21,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:21,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 14:44:21,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:21,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600978047] [2022-11-23 14:44:21,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600978047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:21,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035245086] [2022-11-23 14:44:21,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:21,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:21,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:21,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:21,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:44:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:21,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 14:44:21,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 14:44:21,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:44:21,767 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 14:44:21,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035245086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:44:21,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1334933677] [2022-11-23 14:44:21,768 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-23 14:44:21,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:44:21,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-11-23 14:44:21,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125618970] [2022-11-23 14:44:21,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:44:21,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 14:44:21,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:21,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 14:44:21,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-23 14:44:21,771 INFO L87 Difference]: Start difference. First operand 3654 states and 8814 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:22,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:22,078 INFO L93 Difference]: Finished difference Result 6712 states and 15978 transitions. [2022-11-23 14:44:22,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 14:44:22,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 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 64 [2022-11-23 14:44:22,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:22,090 INFO L225 Difference]: With dead ends: 6712 [2022-11-23 14:44:22,091 INFO L226 Difference]: Without dead ends: 6712 [2022-11-23 14:44:22,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:44:22,091 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 344 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:22,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 160 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:44:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2022-11-23 14:44:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 5705. [2022-11-23 14:44:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5705 states, 5704 states have (on average 2.4062061711079945) internal successors, (13725), 5704 states have internal predecessors, (13725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5705 states to 5705 states and 13725 transitions. [2022-11-23 14:44:22,258 INFO L78 Accepts]: Start accepts. Automaton has 5705 states and 13725 transitions. Word has length 64 [2022-11-23 14:44:22,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:22,258 INFO L495 AbstractCegarLoop]: Abstraction has 5705 states and 13725 transitions. [2022-11-23 14:44:22,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 9 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:22,258 INFO L276 IsEmpty]: Start isEmpty. Operand 5705 states and 13725 transitions. [2022-11-23 14:44:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-23 14:44:22,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:22,269 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:22,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:22,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 14:44:22,475 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:22,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:22,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1858576475, now seen corresponding path program 1 times [2022-11-23 14:44:22,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:22,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250181904] [2022-11-23 14:44:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:22,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:22,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:22,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250181904] [2022-11-23 14:44:22,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250181904] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:22,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226405377] [2022-11-23 14:44:22,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:22,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:22,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:22,678 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:22,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:44:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:22,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 14:44:22,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 14:44:23,000 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:23,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226405377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:23,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:44:23,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-11-23 14:44:23,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035383772] [2022-11-23 14:44:23,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:23,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:44:23,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:23,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:44:23,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:44:23,002 INFO L87 Difference]: Start difference. First operand 5705 states and 13725 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:23,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:23,269 INFO L93 Difference]: Finished difference Result 8006 states and 19017 transitions. [2022-11-23 14:44:23,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:44:23,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 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 87 [2022-11-23 14:44:23,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:23,283 INFO L225 Difference]: With dead ends: 8006 [2022-11-23 14:44:23,283 INFO L226 Difference]: Without dead ends: 8006 [2022-11-23 14:44:23,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:44:23,284 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 151 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:23,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 168 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:44:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8006 states. [2022-11-23 14:44:23,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8006 to 6419. [2022-11-23 14:44:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6419 states, 6418 states have (on average 2.4432845123091305) internal successors, (15681), 6418 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6419 states to 6419 states and 15681 transitions. [2022-11-23 14:44:23,407 INFO L78 Accepts]: Start accepts. Automaton has 6419 states and 15681 transitions. Word has length 87 [2022-11-23 14:44:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:23,408 INFO L495 AbstractCegarLoop]: Abstraction has 6419 states and 15681 transitions. [2022-11-23 14:44:23,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6419 states and 15681 transitions. [2022-11-23 14:44:23,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-23 14:44:23,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:44:23,418 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:23,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:23,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-23 14:44:23,630 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 25 more)] === [2022-11-23 14:44:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:44:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash 303407034, now seen corresponding path program 2 times [2022-11-23 14:44:23,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:44:23,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600357795] [2022-11-23 14:44:23,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:44:23,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:44:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:44:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:44:23,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:44:23,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600357795] [2022-11-23 14:44:23,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600357795] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:44:23,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104249929] [2022-11-23 14:44:23,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 14:44:23,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:44:23,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:44:23,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:44:23,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:44:24,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-23 14:44:24,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:44:24,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 14:44:24,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:44:24,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:44:24,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:24,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-23 14:44:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:24,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:44:24,261 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:44:24,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-23 14:44:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-23 14:44:24,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:44:24,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104249929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:44:24,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 14:44:24,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-11-23 14:44:24,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654228797] [2022-11-23 14:44:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:44:24,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:44:24,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:44:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:44:24,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:44:24,289 INFO L87 Difference]: Start difference. First operand 6419 states and 15681 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:44:24,542 INFO L93 Difference]: Finished difference Result 6386 states and 15611 transitions. [2022-11-23 14:44:24,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:44:24,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 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 94 [2022-11-23 14:44:24,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:44:24,543 INFO L225 Difference]: With dead ends: 6386 [2022-11-23 14:44:24,543 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:44:24,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-23 14:44:24,544 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 99 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:44:24,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 102 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:44:24,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:44:24,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:44:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:24,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:44:24,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2022-11-23 14:44:24,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:44:24,546 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:44:24,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:44:24,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:44:24,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:44:24,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2022-11-23 14:44:24,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2022-11-23 14:44:24,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 28 remaining) [2022-11-23 14:44:24,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 28 remaining) [2022-11-23 14:44:24,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2022-11-23 14:44:24,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2022-11-23 14:44:24,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2022-11-23 14:44:24,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2022-11-23 14:44:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2022-11-23 14:44:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2022-11-23 14:44:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2022-11-23 14:44:24,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2022-11-23 14:44:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2022-11-23 14:44:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2022-11-23 14:44:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2022-11-23 14:44:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2022-11-23 14:44:24,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2022-11-23 14:44:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2022-11-23 14:44:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2022-11-23 14:44:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2022-11-23 14:44:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2022-11-23 14:44:24,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2022-11-23 14:44:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2022-11-23 14:44:24,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2022-11-23 14:44:24,558 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2022-11-23 14:44:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2022-11-23 14:44:24,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2022-11-23 14:44:24,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2022-11-23 14:44:24,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:44:24,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 14:44:24,767 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:44:24,770 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 14:44:24,770 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:44:24,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:44:24 BasicIcfg [2022-11-23 14:44:24,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:44:24,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:44:24,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:44:24,772 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:44:24,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:43:58" (3/4) ... [2022-11-23 14:44:24,774 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:44:24,784 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-23 14:44:24,785 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-23 14:44:24,789 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-23 14:44:24,789 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 14:44:24,789 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 14:44:24,790 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:44:24,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:44:24,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:44:24,834 INFO L158 Benchmark]: Toolchain (without parser) took 28113.02ms. Allocated memory was 144.7MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 103.8MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 562.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,834 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:44:24,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 832.09ms. Allocated memory is still 144.7MB. Free memory was 103.8MB in the beginning and 92.1MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.25ms. Allocated memory is still 144.7MB. Free memory was 92.1MB in the beginning and 89.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,835 INFO L158 Benchmark]: Boogie Preprocessor took 40.10ms. Allocated memory is still 144.7MB. Free memory was 88.7MB in the beginning and 86.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,835 INFO L158 Benchmark]: RCFGBuilder took 668.58ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 64.9MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,836 INFO L158 Benchmark]: TraceAbstraction took 26421.23ms. Allocated memory was 144.7MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 63.7MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 523.2MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,837 INFO L158 Benchmark]: Witness Printer took 60.61ms. Allocated memory is still 6.9GB. Free memory was 6.3GB in the beginning and 6.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:44:24,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 113.2MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 832.09ms. Allocated memory is still 144.7MB. Free memory was 103.8MB in the beginning and 92.1MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.25ms. Allocated memory is still 144.7MB. Free memory was 92.1MB in the beginning and 89.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.10ms. Allocated memory is still 144.7MB. Free memory was 88.7MB in the beginning and 86.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 668.58ms. Allocated memory is still 144.7MB. Free memory was 86.7MB in the beginning and 64.9MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 26421.23ms. Allocated memory was 144.7MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 63.7MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 523.2MB. Max. memory is 16.1GB. * Witness Printer took 60.61ms. Allocated memory is still 6.9GB. Free memory was 6.3GB in the beginning and 6.3GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 236 PlacesBefore, 89 PlacesAfterwards, 239 TransitionsBefore, 89 TransitionsAfterwards, 20432 CoEnabledTransitionPairs, 7 FixpointIterations, 37 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 3 ChoiceCompositions, 172 TotalNumberOfCompositions, 71188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34207, independent: 33199, independent conditional: 0, independent unconditional: 33199, dependent: 1008, dependent conditional: 0, dependent unconditional: 1008, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14734, independent: 14489, independent conditional: 0, independent unconditional: 14489, dependent: 245, dependent conditional: 0, dependent unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14734, independent: 14358, independent conditional: 0, independent unconditional: 14358, dependent: 376, dependent conditional: 0, dependent unconditional: 376, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 376, independent: 131, independent conditional: 0, independent unconditional: 131, dependent: 245, dependent conditional: 0, dependent unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 787, independent: 257, independent conditional: 0, independent unconditional: 257, dependent: 530, dependent conditional: 0, dependent unconditional: 530, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34207, independent: 18710, independent conditional: 0, independent unconditional: 18710, dependent: 763, dependent conditional: 0, dependent unconditional: 763, unknown: 14734, unknown conditional: 0, unknown unconditional: 14734] , Statistics on independence cache: Total cache size (in pairs): 2371, Positive cache size: 2251, Positive conditional cache size: 0, Positive unconditional cache size: 2251, Negative cache size: 120, Negative conditional cache size: 0, Negative unconditional cache size: 120, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1024]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1025]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 961]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 998]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 968]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1009]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 949]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 953]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 983]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 396 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 26.2s, OverallIterations: 18, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2330 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2330 mSDsluCounter, 2395 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1320 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4452 IncrementalHoareTripleChecker+Invalid, 4671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 1075 mSDtfsCounter, 4452 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 476 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17563occurred in iteration=8, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 26722 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 849 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 929 ConstructedInterpolants, 0 QuantifiedInterpolants, 2745 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1342 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 293/457 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 14:44:24,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_123ea466-7e27-4326-8c68-e4452b8aa278/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE