./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/13_unverif.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/13_unverif.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:30:48,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:30:48,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 16:30:48,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:30:48,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:30:48,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:30:48,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:30:48,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:30:48,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:30:48,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:30:48,917 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:30:48,917 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:30:48,918 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:30:48,918 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:30:48,919 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:30:48,919 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:30:48,920 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:30:48,920 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:30:48,921 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:30:48,921 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:30:48,922 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:30:48,925 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:30:48,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:30:48,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:30:48,927 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:30:48,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:30:48,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:30:48,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:30:48,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:30:48,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:30:48,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:30:48,929 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 16:30:48,929 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:30:48,930 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:30:48,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:30:48,930 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:30:48,930 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:30:48,930 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:30:48,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:30:48,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:30:48,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:30:48,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:30:48,932 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:30:48,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:30:48,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:30:48,932 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:30:48,932 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:30:48,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:30:48,933 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 [2023-12-02 16:30:49,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:30:49,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:30:49,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:30:49,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:30:49,205 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:30:49,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-ext/13_unverif.i [2023-12-02 16:30:51,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:30:52,136 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:30:52,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/sv-benchmarks/c/pthread-ext/13_unverif.i [2023-12-02 16:30:52,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/data/36d15c307/c36f3679621249e78e7b79dd8f080389/FLAG010436dc0 [2023-12-02 16:30:52,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/data/36d15c307/c36f3679621249e78e7b79dd8f080389 [2023-12-02 16:30:52,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:30:52,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:30:52,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:30:52,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:30:52,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:30:52,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5194dd6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52, skipping insertion in model container [2023-12-02 16:30:52,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,237 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:30:52,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:30:52,562 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:30:52,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:30:52,627 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:30:52,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52 WrapperNode [2023-12-02 16:30:52,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:30:52,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:30:52,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:30:52,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:30:52,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,666 INFO L138 Inliner]: procedures = 168, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2023-12-02 16:30:52,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:30:52,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:30:52,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:30:52,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:30:52,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:30:52,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:30:52,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:30:52,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:30:52,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (1/1) ... [2023-12-02 16:30:52,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:30:52,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:30:52,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:30:52,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:30:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-02 16:30:52,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-02 16:30:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:30:52,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:30:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 16:30:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 16:30:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:30:52,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:30:52,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:30:52,760 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 16:30:52,885 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:30:52,887 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:30:53,011 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:30:53,066 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:30:53,066 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:30:53,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:30:53 BoogieIcfgContainer [2023-12-02 16:30:53,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:30:53,071 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:30:53,071 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:30:53,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:30:53,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:30:52" (1/3) ... [2023-12-02 16:30:53,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8caa02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:30:53, skipping insertion in model container [2023-12-02 16:30:53,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:30:52" (2/3) ... [2023-12-02 16:30:53,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8caa02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:30:53, skipping insertion in model container [2023-12-02 16:30:53,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:30:53" (3/3) ... [2023-12-02 16:30:53,077 INFO L112 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2023-12-02 16:30:53,086 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 16:30:53,097 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:30:53,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-02 16:30:53,097 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 16:30:53,144 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 16:30:53,171 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 61 transitions, 126 flow [2023-12-02 16:30:53,228 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 460 states, 445 states have (on average 2.087640449438202) internal successors, (929), 459 states have internal predecessors, (929), 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) [2023-12-02 16:30:53,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:30:53,249 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=LoopHeads, 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;@7067c189, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:30:53,249 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-12-02 16:30:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 445 states have (on average 2.087640449438202) internal successors, (929), 459 states have internal predecessors, (929), 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) [2023-12-02 16:30:53,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 16:30:53,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:53,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:30:53,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-12-02 16:30:53,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash 655665166, now seen corresponding path program 1 times [2023-12-02 16:30:53,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:53,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997829819] [2023-12-02 16:30:53,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:53,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:53,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:53,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:53,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997829819] [2023-12-02 16:30:53,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997829819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:30:53,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:30:53,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:30:53,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482209956] [2023-12-02 16:30:53,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:30:53,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:30:53,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:30:53,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:30:53,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:30:53,474 INFO L87 Difference]: Start difference. First operand has 460 states, 445 states have (on average 2.087640449438202) internal successors, (929), 459 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-02 16:30:53,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:30:53,502 INFO L93 Difference]: Finished difference Result 232 states and 421 transitions. [2023-12-02 16:30:53,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:30:53,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2023-12-02 16:30:53,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:30:53,516 INFO L225 Difference]: With dead ends: 232 [2023-12-02 16:30:53,516 INFO L226 Difference]: Without dead ends: 232 [2023-12-02 16:30:53,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:30:53,520 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:30:53,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:30:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-02 16:30:53,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-12-02 16:30:53,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 226 states have (on average 1.8628318584070795) internal successors, (421), 231 states have internal predecessors, (421), 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) [2023-12-02 16:30:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 421 transitions. [2023-12-02 16:30:53,578 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 421 transitions. Word has length 19 [2023-12-02 16:30:53,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:30:53,579 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 421 transitions. [2023-12-02 16:30:53,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-02 16:30:53,579 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 421 transitions. [2023-12-02 16:30:53,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:30:53,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:53,581 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] [2023-12-02 16:30:53,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:30:53,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-12-02 16:30:53,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1265958798, now seen corresponding path program 1 times [2023-12-02 16:30:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:53,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868739685] [2023-12-02 16:30:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:53,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:53,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:53,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868739685] [2023-12-02 16:30:53,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868739685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:30:53,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:30:53,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:30:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77034137] [2023-12-02 16:30:53,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:30:53,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:30:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:30:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:30:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:30:53,670 INFO L87 Difference]: Start difference. First operand 232 states and 421 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-02 16:30:53,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:30:53,686 INFO L93 Difference]: Finished difference Result 224 states and 406 transitions. [2023-12-02 16:30:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:30:53,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-12-02 16:30:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:30:53,690 INFO L225 Difference]: With dead ends: 224 [2023-12-02 16:30:53,690 INFO L226 Difference]: Without dead ends: 224 [2023-12-02 16:30:53,691 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 [2023-12-02 16:30:53,692 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 29 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:30:53,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 69 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:30:53,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-02 16:30:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2023-12-02 16:30:53,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.8538812785388128) internal successors, (406), 223 states have internal predecessors, (406), 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) [2023-12-02 16:30:53,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 406 transitions. [2023-12-02 16:30:53,713 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 406 transitions. Word has length 21 [2023-12-02 16:30:53,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:30:53,713 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 406 transitions. [2023-12-02 16:30:53,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-02 16:30:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 406 transitions. [2023-12-02 16:30:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 16:30:53,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:53,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:30:53,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:30:53,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-12-02 16:30:53,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:53,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1580128952, now seen corresponding path program 1 times [2023-12-02 16:30:53,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:53,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275810463] [2023-12-02 16:30:53,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:53,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:30:53,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:30:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:30:53,777 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:30:53,778 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:30:53,779 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2023-12-02 16:30:53,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-12-02 16:30:53,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-12-02 16:30:53,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-12-02 16:30:53,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-12-02 16:30:53,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-12-02 16:30:53,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-12-02 16:30:53,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-12-02 16:30:53,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-12-02 16:30:53,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-12-02 16:30:53,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-12-02 16:30:53,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-12-02 16:30:53,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-12-02 16:30:53,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-12-02 16:30:53,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-12-02 16:30:53,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:30:53,788 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-02 16:30:53,790 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 16:30:53,790 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 16:30:53,823 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 16:30:53,828 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 97 transitions, 204 flow [2023-12-02 16:30:54,347 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 15619 states, 15485 states have (on average 3.1197287697772036) internal successors, (48309), 15618 states have internal predecessors, (48309), 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) [2023-12-02 16:30:54,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:30:54,350 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=LoopHeads, 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;@7067c189, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:30:54,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-12-02 16:30:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 15619 states, 15485 states have (on average 3.1197287697772036) internal successors, (48309), 15618 states have internal predecessors, (48309), 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) [2023-12-02 16:30:54,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 16:30:54,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:54,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:30:54,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-12-02 16:30:54,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1094619121, now seen corresponding path program 1 times [2023-12-02 16:30:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:54,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394862818] [2023-12-02 16:30:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:54,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:54,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:54,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394862818] [2023-12-02 16:30:54,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394862818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:30:54,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:30:54,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:30:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777047015] [2023-12-02 16:30:54,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:30:54,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:30:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:30:54,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:30:54,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:30:54,472 INFO L87 Difference]: Start difference. First operand has 15619 states, 15485 states have (on average 3.1197287697772036) internal successors, (48309), 15618 states have internal predecessors, (48309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-02 16:30:54,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:30:54,644 INFO L93 Difference]: Finished difference Result 6037 states and 17161 transitions. [2023-12-02 16:30:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:30:54,645 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2023-12-02 16:30:54,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:30:54,734 INFO L225 Difference]: With dead ends: 6037 [2023-12-02 16:30:54,735 INFO L226 Difference]: Without dead ends: 6037 [2023-12-02 16:30:54,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:30:54,736 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:30:54,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:30:54,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2023-12-02 16:30:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 6037. [2023-12-02 16:30:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6037 states, 6001 states have (on average 2.859690051658057) internal successors, (17161), 6036 states have internal predecessors, (17161), 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) [2023-12-02 16:30:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6037 states to 6037 states and 17161 transitions. [2023-12-02 16:30:55,026 INFO L78 Accepts]: Start accepts. Automaton has 6037 states and 17161 transitions. Word has length 19 [2023-12-02 16:30:55,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:30:55,027 INFO L495 AbstractCegarLoop]: Abstraction has 6037 states and 17161 transitions. [2023-12-02 16:30:55,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-02 16:30:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand 6037 states and 17161 transitions. [2023-12-02 16:30:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:30:55,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:55,028 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] [2023-12-02 16:30:55,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 16:30:55,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-12-02 16:30:55,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:55,033 INFO L85 PathProgramCache]: Analyzing trace with hash 338025651, now seen corresponding path program 1 times [2023-12-02 16:30:55,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:55,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998367243] [2023-12-02 16:30:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:55,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:55,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:55,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998367243] [2023-12-02 16:30:55,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998367243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:30:55,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:30:55,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:30:55,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084665822] [2023-12-02 16:30:55,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:30:55,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:30:55,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:30:55,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:30:55,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:30:55,077 INFO L87 Difference]: Start difference. First operand 6037 states and 17161 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-02 16:30:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:30:55,172 INFO L93 Difference]: Finished difference Result 6326 states and 17646 transitions. [2023-12-02 16:30:55,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:30:55,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-12-02 16:30:55,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:30:55,228 INFO L225 Difference]: With dead ends: 6326 [2023-12-02 16:30:55,228 INFO L226 Difference]: Without dead ends: 6326 [2023-12-02 16:30:55,229 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 [2023-12-02 16:30:55,230 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 56 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:30:55,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:30:55,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6326 states. [2023-12-02 16:30:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6326 to 5990. [2023-12-02 16:30:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5955 states have (on average 2.801007556675063) internal successors, (16680), 5989 states have internal predecessors, (16680), 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) [2023-12-02 16:30:55,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16680 transitions. [2023-12-02 16:30:55,470 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16680 transitions. Word has length 21 [2023-12-02 16:30:55,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:30:55,471 INFO L495 AbstractCegarLoop]: Abstraction has 5990 states and 16680 transitions. [2023-12-02 16:30:55,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-02 16:30:55,471 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16680 transitions. [2023-12-02 16:30:55,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 16:30:55,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:55,473 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] [2023-12-02 16:30:55,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:30:55,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-12-02 16:30:55,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1575780646, now seen corresponding path program 1 times [2023-12-02 16:30:55,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:55,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679610749] [2023-12-02 16:30:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:55,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679610749] [2023-12-02 16:30:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679610749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:30:55,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:30:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:30:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311324500] [2023-12-02 16:30:55,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:30:55,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:30:55,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:30:55,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:30:55,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:30:55,515 INFO L87 Difference]: Start difference. First operand 5990 states and 16680 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-12-02 16:30:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:30:55,647 INFO L93 Difference]: Finished difference Result 6599 states and 18133 transitions. [2023-12-02 16:30:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:30:55,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2023-12-02 16:30:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:30:55,696 INFO L225 Difference]: With dead ends: 6599 [2023-12-02 16:30:55,696 INFO L226 Difference]: Without dead ends: 6599 [2023-12-02 16:30:55,696 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 [2023-12-02 16:30:55,698 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 50 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:30:55,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 149 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:30:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2023-12-02 16:30:55,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 5784. [2023-12-02 16:30:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5761 states have (on average 2.7446623850026035) internal successors, (15812), 5783 states have internal predecessors, (15812), 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) [2023-12-02 16:30:55,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 15812 transitions. [2023-12-02 16:30:55,964 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 15812 transitions. Word has length 24 [2023-12-02 16:30:55,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:30:55,964 INFO L495 AbstractCegarLoop]: Abstraction has 5784 states and 15812 transitions. [2023-12-02 16:30:55,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-12-02 16:30:55,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 15812 transitions. [2023-12-02 16:30:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 16:30:55,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:55,967 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] [2023-12-02 16:30:55,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 16:30:55,967 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-12-02 16:30:55,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:55,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1557256733, now seen corresponding path program 1 times [2023-12-02 16:30:55,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:55,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792941953] [2023-12-02 16:30:55,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:55,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:30:56,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:30:56,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:30:56,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792941953] [2023-12-02 16:30:56,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792941953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:30:56,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:30:56,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:30:56,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835628861] [2023-12-02 16:30:56,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:30:56,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:30:56,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:30:56,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:30:56,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:30:56,011 INFO L87 Difference]: Start difference. First operand 5784 states and 15812 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-12-02 16:30:56,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:30:56,106 INFO L93 Difference]: Finished difference Result 5889 states and 16128 transitions. [2023-12-02 16:30:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:30:56,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-12-02 16:30:56,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:30:56,133 INFO L225 Difference]: With dead ends: 5889 [2023-12-02 16:30:56,133 INFO L226 Difference]: Without dead ends: 5889 [2023-12-02 16:30:56,134 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 [2023-12-02 16:30:56,135 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 32 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:30:56,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 143 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:30:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5889 states. [2023-12-02 16:30:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5889 to 5769. [2023-12-02 16:30:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5769 states, 5750 states have (on average 2.744869565217391) internal successors, (15783), 5768 states have internal predecessors, (15783), 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) [2023-12-02 16:30:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 15783 transitions. [2023-12-02 16:30:56,368 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 15783 transitions. Word has length 28 [2023-12-02 16:30:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:30:56,368 INFO L495 AbstractCegarLoop]: Abstraction has 5769 states and 15783 transitions. [2023-12-02 16:30:56,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-12-02 16:30:56,369 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 15783 transitions. [2023-12-02 16:30:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 16:30:56,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:30:56,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:30:56,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 16:30:56,372 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-12-02 16:30:56,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:30:56,372 INFO L85 PathProgramCache]: Analyzing trace with hash -63740909, now seen corresponding path program 1 times [2023-12-02 16:30:56,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:30:56,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725906017] [2023-12-02 16:30:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:30:56,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:30:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:30:56,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:30:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:30:56,402 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:30:56,402 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:30:56,402 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-12-02 16:30:56,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-12-02 16:30:56,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-12-02 16:30:56,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-12-02 16:30:56,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-12-02 16:30:56,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-12-02 16:30:56,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-12-02 16:30:56,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-12-02 16:30:56,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-12-02 16:30:56,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-12-02 16:30:56,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-12-02 16:30:56,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-12-02 16:30:56,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-12-02 16:30:56,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-12-02 16:30:56,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-12-02 16:30:56,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-12-02 16:30:56,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-12-02 16:30:56,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-12-02 16:30:56,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-12-02 16:30:56,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-12-02 16:30:56,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-12-02 16:30:56,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-12-02 16:30:56,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 16:30:56,407 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 16:30:56,407 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 16:30:56,408 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-12-02 16:30:56,438 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 16:30:56,441 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 130 places, 133 transitions, 284 flow [2023-12-02 16:31:09,627 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 517486 states, 516393 states have (on average 4.162085853216445) internal successors, (2149272), 517485 states have internal predecessors, (2149272), 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) [2023-12-02 16:31:09,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:31:09,630 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=LoopHeads, 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;@7067c189, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:31:09,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-12-02 16:31:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 517486 states, 516393 states have (on average 4.162085853216445) internal successors, (2149272), 517485 states have internal predecessors, (2149272), 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) [2023-12-02 16:31:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 16:31:10,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:10,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:31:10,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-12-02 16:31:10,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:10,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1818433521, now seen corresponding path program 1 times [2023-12-02 16:31:10,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:10,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171899153] [2023-12-02 16:31:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:31:10,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:10,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171899153] [2023-12-02 16:31:10,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171899153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:10,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:10,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:31:10,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536551848] [2023-12-02 16:31:10,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:10,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:31:10,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:10,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:31:10,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:31:11,842 INFO L87 Difference]: Start difference. First operand has 517486 states, 516393 states have (on average 4.162085853216445) internal successors, (2149272), 517485 states have internal predecessors, (2149272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-02 16:31:13,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:13,516 INFO L93 Difference]: Finished difference Result 162772 states and 625876 transitions. [2023-12-02 16:31:13,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:31:13,517 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2023-12-02 16:31:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:14,968 INFO L225 Difference]: With dead ends: 162772 [2023-12-02 16:31:14,968 INFO L226 Difference]: Without dead ends: 162772 [2023-12-02 16:31:14,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:31:14,969 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:14,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:31:15,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162772 states. [2023-12-02 16:31:19,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162772 to 162772. [2023-12-02 16:31:19,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162772 states, 162556 states have (on average 3.8502177711065726) internal successors, (625876), 162771 states have internal predecessors, (625876), 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) [2023-12-02 16:31:20,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162772 states to 162772 states and 625876 transitions. [2023-12-02 16:31:20,892 INFO L78 Accepts]: Start accepts. Automaton has 162772 states and 625876 transitions. Word has length 19 [2023-12-02 16:31:20,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:20,893 INFO L495 AbstractCegarLoop]: Abstraction has 162772 states and 625876 transitions. [2023-12-02 16:31:20,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 19.0) internal successors, (19), 2 states have internal predecessors, (19), 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) [2023-12-02 16:31:20,893 INFO L276 IsEmpty]: Start isEmpty. Operand 162772 states and 625876 transitions. [2023-12-02 16:31:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 16:31:20,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:20,894 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] [2023-12-02 16:31:20,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 16:31:20,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-12-02 16:31:20,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:20,895 INFO L85 PathProgramCache]: Analyzing trace with hash -537058123, now seen corresponding path program 1 times [2023-12-02 16:31:20,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:20,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744866629] [2023-12-02 16:31:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:20,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:31:20,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:20,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744866629] [2023-12-02 16:31:20,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744866629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:20,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:20,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:31:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704651351] [2023-12-02 16:31:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:20,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:31:20,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:31:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:31:20,928 INFO L87 Difference]: Start difference. First operand 162772 states and 625876 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-02 16:31:23,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:23,142 INFO L93 Difference]: Finished difference Result 179096 states and 671714 transitions. [2023-12-02 16:31:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:31:23,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-12-02 16:31:23,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:23,937 INFO L225 Difference]: With dead ends: 179096 [2023-12-02 16:31:23,937 INFO L226 Difference]: Without dead ends: 179096 [2023-12-02 16:31:23,937 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 [2023-12-02 16:31:23,938 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 81 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:23,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 196 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:31:24,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179096 states. [2023-12-02 16:31:28,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179096 to 163682. [2023-12-02 16:31:28,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163682 states, 163467 states have (on average 3.751521713862737) internal successors, (613250), 163681 states have internal predecessors, (613250), 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) [2023-12-02 16:31:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163682 states to 163682 states and 613250 transitions. [2023-12-02 16:31:29,626 INFO L78 Accepts]: Start accepts. Automaton has 163682 states and 613250 transitions. Word has length 21 [2023-12-02 16:31:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:29,626 INFO L495 AbstractCegarLoop]: Abstraction has 163682 states and 613250 transitions. [2023-12-02 16:31:29,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-02 16:31:29,627 INFO L276 IsEmpty]: Start isEmpty. Operand 163682 states and 613250 transitions. [2023-12-02 16:31:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 16:31:29,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:29,627 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] [2023-12-02 16:31:29,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 16:31:29,627 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-12-02 16:31:29,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:29,628 INFO L85 PathProgramCache]: Analyzing trace with hash -744873091, now seen corresponding path program 1 times [2023-12-02 16:31:29,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:29,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962953802] [2023-12-02 16:31:29,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:29,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:31:29,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:29,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962953802] [2023-12-02 16:31:29,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962953802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:29,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:29,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:31:29,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958046832] [2023-12-02 16:31:29,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:29,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:31:29,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:29,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:31:29,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:31:29,656 INFO L87 Difference]: Start difference. First operand 163682 states and 613250 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-12-02 16:31:31,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:31,348 INFO L93 Difference]: Finished difference Result 207790 states and 760428 transitions. [2023-12-02 16:31:31,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:31:31,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2023-12-02 16:31:31,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:32,631 INFO L225 Difference]: With dead ends: 207790 [2023-12-02 16:31:32,632 INFO L226 Difference]: Without dead ends: 207790 [2023-12-02 16:31:32,632 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 [2023-12-02 16:31:32,632 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 75 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:32,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 205 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:31:32,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207790 states. [2023-12-02 16:31:37,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207790 to 168860. [2023-12-02 16:31:37,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168860 states, 168701 states have (on average 3.654015091789616) internal successors, (616436), 168859 states have internal predecessors, (616436), 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) [2023-12-02 16:31:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168860 states to 168860 states and 616436 transitions. [2023-12-02 16:31:38,070 INFO L78 Accepts]: Start accepts. Automaton has 168860 states and 616436 transitions. Word has length 24 [2023-12-02 16:31:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:38,070 INFO L495 AbstractCegarLoop]: Abstraction has 168860 states and 616436 transitions. [2023-12-02 16:31:38,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-12-02 16:31:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 168860 states and 616436 transitions. [2023-12-02 16:31:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 16:31:38,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:38,071 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] [2023-12-02 16:31:38,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 16:31:38,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-12-02 16:31:38,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1805512320, now seen corresponding path program 1 times [2023-12-02 16:31:38,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:38,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710561250] [2023-12-02 16:31:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:38,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:31:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 16:31:38,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:31:38,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710561250] [2023-12-02 16:31:38,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710561250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:31:38,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:31:38,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:31:38,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109523437] [2023-12-02 16:31:38,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:31:38,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:31:38,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:31:38,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:31:38,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:31:38,101 INFO L87 Difference]: Start difference. First operand 168860 states and 616436 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-12-02 16:31:39,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:31:39,660 INFO L93 Difference]: Finished difference Result 176215 states and 643799 transitions. [2023-12-02 16:31:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:31:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-12-02 16:31:39,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:31:40,888 INFO L225 Difference]: With dead ends: 176215 [2023-12-02 16:31:40,889 INFO L226 Difference]: Without dead ends: 176215 [2023-12-02 16:31:40,889 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 [2023-12-02 16:31:40,889 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 58 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:31:40,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 205 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:31:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176215 states. [2023-12-02 16:31:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176215 to 171270. [2023-12-02 16:31:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171270 states, 171127 states have (on average 3.653947068551427) internal successors, (625289), 171269 states have internal predecessors, (625289), 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) [2023-12-02 16:31:46,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171270 states to 171270 states and 625289 transitions. [2023-12-02 16:31:46,198 INFO L78 Accepts]: Start accepts. Automaton has 171270 states and 625289 transitions. Word has length 28 [2023-12-02 16:31:46,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:31:46,199 INFO L495 AbstractCegarLoop]: Abstraction has 171270 states and 625289 transitions. [2023-12-02 16:31:46,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-12-02 16:31:46,199 INFO L276 IsEmpty]: Start isEmpty. Operand 171270 states and 625289 transitions. [2023-12-02 16:31:46,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 16:31:46,200 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:31:46,200 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:31:46,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 16:31:46,200 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-12-02 16:31:46,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:31:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1595447022, now seen corresponding path program 1 times [2023-12-02 16:31:46,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:31:46,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730308722] [2023-12-02 16:31:46,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:31:46,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:31:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:31:46,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:31:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:31:46,228 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:31:46,229 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:31:46,229 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-12-02 16:31:46,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-12-02 16:31:46,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-12-02 16:31:46,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-12-02 16:31:46,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-12-02 16:31:46,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-12-02 16:31:46,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-12-02 16:31:46,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-12-02 16:31:46,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2023-12-02 16:31:46,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-12-02 16:31:46,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-12-02 16:31:46,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-12-02 16:31:46,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-12-02 16:31:46,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-12-02 16:31:46,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-12-02 16:31:46,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-12-02 16:31:46,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-12-02 16:31:46,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 16:31:46,234 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 16:31:46,238 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2023-12-02 16:31:46,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:31:46,261 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 16:31:46,263 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 16:31:46,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:31:46 BasicIcfg [2023-12-02 16:31:46,273 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:31:46,273 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:31:46,273 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:31:46,274 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:31:46,274 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:30:53" (3/4) ... [2023-12-02 16:31:46,276 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:31:46,277 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:31:46,277 INFO L158 Benchmark]: Toolchain (without parser) took 54109.24ms. Allocated memory was 203.4MB in the beginning and 14.9GB in the end (delta: 14.7GB). Free memory was 166.3MB in the beginning and 8.4GB in the end (delta: -8.2GB). Peak memory consumption was 6.5GB. Max. memory is 16.1GB. [2023-12-02 16:31:46,278 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:31:46,278 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.93ms. Allocated memory is still 203.4MB. Free memory was 166.3MB in the beginning and 165.3MB in the end (delta: 1.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 16:31:46,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.61ms. Allocated memory is still 203.4MB. Free memory was 165.3MB in the beginning and 163.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:31:46,278 INFO L158 Benchmark]: Boogie Preprocessor took 23.05ms. Allocated memory is still 203.4MB. Free memory was 163.1MB in the beginning and 162.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:31:46,279 INFO L158 Benchmark]: RCFGBuilder took 377.35ms. Allocated memory is still 203.4MB. Free memory was 162.1MB in the beginning and 146.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:31:46,279 INFO L158 Benchmark]: TraceAbstraction took 53201.90ms. Allocated memory was 203.4MB in the beginning and 14.9GB in the end (delta: 14.7GB). Free memory was 145.3MB in the beginning and 8.4GB in the end (delta: -8.2GB). Peak memory consumption was 6.5GB. Max. memory is 16.1GB. [2023-12-02 16:31:46,279 INFO L158 Benchmark]: Witness Printer took 3.38ms. Allocated memory is still 14.9GB. Free memory is still 8.4GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:31:46,281 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.93ms. Allocated memory is still 203.4MB. Free memory was 166.3MB in the beginning and 165.3MB in the end (delta: 1.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.61ms. Allocated memory is still 203.4MB. Free memory was 165.3MB in the beginning and 163.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.05ms. Allocated memory is still 203.4MB. Free memory was 163.1MB in the beginning and 162.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.35ms. Allocated memory is still 203.4MB. Free memory was 162.1MB in the beginning and 146.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 53201.90ms. Allocated memory was 203.4MB in the beginning and 14.9GB in the end (delta: 14.7GB). Free memory was 145.3MB in the beginning and 8.4GB in the end (delta: -8.2GB). Peak memory consumption was 6.5GB. Max. memory is 16.1GB. * Witness Printer took 3.38ms. Allocated memory is still 14.9GB. Free memory is still 8.4GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 698]: Data race detected [2023-12-02 16:31:46,300 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 16:31:46,301 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 16:31:46,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated [2023-12-02 16:31:46,315 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre5 could not be translated Data race detected The following path leads to a data race: [L688] 0 unsigned int r = 0; VAL [r=0] [L689] 0 unsigned int s = 0; VAL [r=0, s=0] [L707] 0 pthread_t t; VAL [r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 VAL [r=0, s=0, t={3:0}] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [r=0, s=0, t={3:0}] [L696] 1 unsigned int l = 0; VAL [arg={0:0}, arg={0:0}, l=0, r=0, s=0] [L708] COND TRUE 0 1 VAL [r=0, s=0, t={3:0}] [L697] CALL 1 __VERIFIER_atomic_inc_r() [L692] EXPR 1 r!=-1 [L692] CALL 1 assume_abort_if_not(r!=-1) [L3] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(r!=-1) [L693] EXPR 1 r + 1 [L693] 1 r = r + 1 [L697] RET 1 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=1, s=0] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [r=1, s=0, t={3:0}] [L696] 2 unsigned int l = 0; VAL [arg={0:0}, arg={0:0}, l=0, r=1, s=0] [L697] CALL 2 __VERIFIER_atomic_inc_r() [L692] EXPR 2 r!=-1 [L692] CALL 2 assume_abort_if_not(r!=-1) [L3] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(r!=-1) [L693] EXPR 2 r + 1 [L693] 2 r = r + 1 [L697] RET 2 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=2, s=0] Now there is a data race on ~r~0 between C: r = r + 1 [693] and C: r == 1 [698] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 93 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 124 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 507 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 166 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 341 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15619occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1271 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 157 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 49.8s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.8s, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 702 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 479 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=517486occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 59289 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-02 16:31:46,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a80671e1-721e-43b0-a989-c8500674019b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE