./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:08:55,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:08:55,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:08:55,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:08:55,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:08:55,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:08:55,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:08:55,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:08:55,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:08:55,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:08:55,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:08:55,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:08:55,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:08:55,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:08:55,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:08:55,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:08:55,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:08:55,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:08:55,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:08:55,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:08:55,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:08:55,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:08:55,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:08:55,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:08:55,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:08:55,243 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:08:55,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:08:55,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:08:55,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:08:55,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:08:55,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:08:55,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:08:55,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:08:55,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:08:55,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:08:55,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:08:55,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:08:55,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:08:55,253 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:08:55,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:08:55,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:08:55,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:08:55,282 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:08:55,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:08:55,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:08:55,283 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:08:55,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:08:55,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:08:55,284 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:08:55,284 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:08:55,285 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:08:55,285 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:08:55,285 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:08:55,285 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:08:55,286 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:08:55,286 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:08:55,286 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:08:55,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:08:55,287 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:08:55,287 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:08:55,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:08:55,288 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:08:55,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:08:55,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:08:55,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:08:55,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:08:55,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:08:55,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:08:55,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:08:55,290 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:08:55,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:08:55,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:08:55,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:08:55,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:08:55,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:08:55,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:08:55,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:08:55,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:08:55,293 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:08:55,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:08:55,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:08:55,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:08:55,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:08:55,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:08:55,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:08:55,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f [2022-11-03 02:08:55,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:08:55,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:08:55,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:08:55,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:08:55,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:08:55,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-11-03 02:08:55,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/data/bcec7085c/ee6ea9876310474a8f27a60c86761b80/FLAGe1293090c [2022-11-03 02:08:56,322 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:08:56,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2022-11-03 02:08:56,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/data/bcec7085c/ee6ea9876310474a8f27a60c86761b80/FLAGe1293090c [2022-11-03 02:08:56,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/data/bcec7085c/ee6ea9876310474a8f27a60c86761b80 [2022-11-03 02:08:56,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:08:56,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:08:56,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:08:56,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:08:56,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:08:56,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:08:56" (1/1) ... [2022-11-03 02:08:56,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4683bf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:56, skipping insertion in model container [2022-11-03 02:08:56,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:08:56" (1/1) ... [2022-11-03 02:08:56,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:08:56,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:08:56,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-11-03 02:08:56,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:08:56,954 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:08:57,029 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c[2412,2425] [2022-11-03 02:08:57,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:08:57,093 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:08:57,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57 WrapperNode [2022-11-03 02:08:57,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:08:57,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:08:57,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:08:57,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:08:57,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,170 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 15, calls inlined = 27, statements flattened = 403 [2022-11-03 02:08:57,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:08:57,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:08:57,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:08:57,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:08:57,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,227 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:08:57,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:08:57,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:08:57,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:08:57,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (1/1) ... [2022-11-03 02:08:57,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:08:57,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:08:57,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:08:57,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b343d8be-8b65-444e-bd48-f61163712ecb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:08:57,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:08:57,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:08:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:08:57,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:08:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-03 02:08:57,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-03 02:08:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-03 02:08:57,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-03 02:08:57,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-03 02:08:57,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-03 02:08:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:08:57,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:08:57,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:08:57,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:08:57,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:08:57,344 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:08:57,518 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:08:57,521 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:08:58,504 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:08:58,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:08:58,520 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:08:58,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:58 BoogieIcfgContainer [2022-11-03 02:08:58,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:08:58,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:08:58,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:08:58,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:08:58,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:08:56" (1/3) ... [2022-11-03 02:08:58,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6594ddc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:58, skipping insertion in model container [2022-11-03 02:08:58,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:08:57" (2/3) ... [2022-11-03 02:08:58,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6594ddc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:08:58, skipping insertion in model container [2022-11-03 02:08:58,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:08:58" (3/3) ... [2022-11-03 02:08:58,536 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2022-11-03 02:08:58,548 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:08:58,561 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:08:58,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2022-11-03 02:08:58,561 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:08:58,772 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-03 02:08:58,850 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:08:58,870 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 536 transitions, 1096 flow [2022-11-03 02:08:58,880 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 536 transitions, 1096 flow [2022-11-03 02:08:58,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 536 transitions, 1096 flow [2022-11-03 02:08:59,274 INFO L130 PetriNetUnfolder]: 29/533 cut-off events. [2022-11-03 02:08:59,274 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-03 02:08:59,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 533 events. 29/533 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 920 event pairs, 0 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 332. Up to 2 conditions per place. [2022-11-03 02:08:59,320 INFO L118 LiptonReduction]: Number of co-enabled transitions 47072 [2022-11-03 02:09:24,245 INFO L133 LiptonReduction]: Checked pairs total: 284334 [2022-11-03 02:09:24,245 INFO L135 LiptonReduction]: Total number of compositions: 655 [2022-11-03 02:09:24,260 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 121 transitions, 266 flow [2022-11-03 02:09:27,906 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 67979 states, 67019 states have (on average 4.019561616854921) internal successors, (269387), 67978 states have internal predecessors, (269387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:27,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:09:27,956 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56aa343b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:09:27,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-11-03 02:09:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 67979 states, 67019 states have (on average 4.019561616854921) internal successors, (269387), 67978 states have internal predecessors, (269387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:28,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:09:28,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:28,083 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:09:28,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:09:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2034, now seen corresponding path program 1 times [2022-11-03 02:09:28,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:28,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458341336] [2022-11-03 02:09:28,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:28,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:28,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:28,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458341336] [2022-11-03 02:09:28,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458341336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:28,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:28,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:09:28,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387638103] [2022-11-03 02:09:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:28,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:09:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:28,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:09:28,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:09:28,466 INFO L87 Difference]: Start difference. First operand has 67979 states, 67019 states have (on average 4.019561616854921) internal successors, (269387), 67978 states have internal predecessors, (269387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:29,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:29,612 INFO L93 Difference]: Finished difference Result 30062 states and 113647 transitions. [2022-11-03 02:09:29,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:09:29,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-03 02:09:29,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:30,467 INFO L225 Difference]: With dead ends: 30062 [2022-11-03 02:09:30,469 INFO L226 Difference]: Without dead ends: 30060 [2022-11-03 02:09:30,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:09:30,499 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:30,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:09:30,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30060 states. [2022-11-03 02:09:32,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30060 to 30060. [2022-11-03 02:09:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30060 states, 30006 states have (on average 3.787375858161701) internal successors, (113644), 30059 states have internal predecessors, (113644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30060 states to 30060 states and 113644 transitions. [2022-11-03 02:09:33,260 INFO L78 Accepts]: Start accepts. Automaton has 30060 states and 113644 transitions. Word has length 1 [2022-11-03 02:09:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:33,261 INFO L495 AbstractCegarLoop]: Abstraction has 30060 states and 113644 transitions. [2022-11-03 02:09:33,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 30060 states and 113644 transitions. [2022-11-03 02:09:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:09:33,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:33,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:33,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:09:33,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:09:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:33,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1291135111, now seen corresponding path program 1 times [2022-11-03 02:09:33,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:33,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979887339] [2022-11-03 02:09:33,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:33,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:34,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:34,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979887339] [2022-11-03 02:09:34,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979887339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:34,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:34,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:34,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689693307] [2022-11-03 02:09:34,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:34,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:09:34,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:34,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:09:34,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:09:34,498 INFO L87 Difference]: Start difference. First operand 30060 states and 113644 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:36,164 INFO L93 Difference]: Finished difference Result 39452 states and 150061 transitions. [2022-11-03 02:09:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 14 [2022-11-03 02:09:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:36,487 INFO L225 Difference]: With dead ends: 39452 [2022-11-03 02:09:36,487 INFO L226 Difference]: Without dead ends: 39452 [2022-11-03 02:09:36,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:09:36,489 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 92 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:36,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 86 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-03 02:09:36,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39452 states. [2022-11-03 02:09:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39452 to 39452. [2022-11-03 02:09:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39452 states, 39398 states have (on average 3.808848164881466) internal successors, (150061), 39451 states have internal predecessors, (150061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39452 states to 39452 states and 150061 transitions. [2022-11-03 02:09:39,098 INFO L78 Accepts]: Start accepts. Automaton has 39452 states and 150061 transitions. Word has length 14 [2022-11-03 02:09:39,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:39,099 INFO L495 AbstractCegarLoop]: Abstraction has 39452 states and 150061 transitions. [2022-11-03 02:09:39,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 39452 states and 150061 transitions. [2022-11-03 02:09:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:09:39,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:39,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:39,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:09:39,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:09:39,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash 2092739319, now seen corresponding path program 1 times [2022-11-03 02:09:39,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:39,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311080049] [2022-11-03 02:09:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:39,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:39,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311080049] [2022-11-03 02:09:39,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311080049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:39,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:39,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:09:39,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051662053] [2022-11-03 02:09:39,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:39,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:09:39,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:39,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:09:39,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:09:39,548 INFO L87 Difference]: Start difference. First operand 39452 states and 150061 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:41,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:41,401 INFO L93 Difference]: Finished difference Result 64208 states and 241824 transitions. [2022-11-03 02:09:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:09:41,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-11-03 02:09:41,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:41,911 INFO L225 Difference]: With dead ends: 64208 [2022-11-03 02:09:41,911 INFO L226 Difference]: Without dead ends: 64208 [2022-11-03 02:09:41,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:09:41,913 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 110 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:41,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 91 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-03 02:09:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64208 states. [2022-11-03 02:09:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64208 to 57162. [2022-11-03 02:09:44,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57162 states, 57108 states have (on average 3.868127057505078) internal successors, (220901), 57161 states have internal predecessors, (220901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:44,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57162 states to 57162 states and 220901 transitions. [2022-11-03 02:09:44,999 INFO L78 Accepts]: Start accepts. Automaton has 57162 states and 220901 transitions. Word has length 15 [2022-11-03 02:09:45,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:45,000 INFO L495 AbstractCegarLoop]: Abstraction has 57162 states and 220901 transitions. [2022-11-03 02:09:45,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:45,001 INFO L276 IsEmpty]: Start isEmpty. Operand 57162 states and 220901 transitions. [2022-11-03 02:09:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:09:45,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:45,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:45,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:09:45,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:09:45,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1097513781, now seen corresponding path program 1 times [2022-11-03 02:09:45,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:45,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118930425] [2022-11-03 02:09:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:45,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:45,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:45,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118930425] [2022-11-03 02:09:45,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118930425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:45,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:45,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:45,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089310703] [2022-11-03 02:09:45,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:45,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:45,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:45,805 INFO L87 Difference]: Start difference. First operand 57162 states and 220901 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:46,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:46,604 INFO L93 Difference]: Finished difference Result 60871 states and 233742 transitions. [2022-11-03 02:09:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:09:46,605 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:09:46,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:47,596 INFO L225 Difference]: With dead ends: 60871 [2022-11-03 02:09:47,596 INFO L226 Difference]: Without dead ends: 60868 [2022-11-03 02:09:47,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:09:47,601 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 143 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:47,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 201 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:47,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60868 states. [2022-11-03 02:09:49,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60868 to 60003. [2022-11-03 02:09:49,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60003 states, 59949 states have (on average 3.859180303257769) internal successors, (231354), 60002 states have internal predecessors, (231354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:50,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60003 states to 60003 states and 231354 transitions. [2022-11-03 02:09:50,184 INFO L78 Accepts]: Start accepts. Automaton has 60003 states and 231354 transitions. Word has length 16 [2022-11-03 02:09:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:50,185 INFO L495 AbstractCegarLoop]: Abstraction has 60003 states and 231354 transitions. [2022-11-03 02:09:50,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:50,185 INFO L276 IsEmpty]: Start isEmpty. Operand 60003 states and 231354 transitions. [2022-11-03 02:09:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:09:50,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:50,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:50,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:09:50,189 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:09:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:50,190 INFO L85 PathProgramCache]: Analyzing trace with hash 772507218, now seen corresponding path program 1 times [2022-11-03 02:09:50,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:50,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036262612] [2022-11-03 02:09:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:50,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:50,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:09:50,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:50,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036262612] [2022-11-03 02:09:50,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036262612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:50,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:50,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:50,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820664179] [2022-11-03 02:09:50,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:50,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:50,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:50,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:50,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:50,324 INFO L87 Difference]: Start difference. First operand 60003 states and 231354 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:51,659 INFO L93 Difference]: Finished difference Result 58544 states and 225299 transitions. [2022-11-03 02:09:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:09:51,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:09:51,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:52,010 INFO L225 Difference]: With dead ends: 58544 [2022-11-03 02:09:52,011 INFO L226 Difference]: Without dead ends: 58544 [2022-11-03 02:09:52,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:09:52,012 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 120 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:52,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 179 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:09:52,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58544 states. [2022-11-03 02:09:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58544 to 58459. [2022-11-03 02:09:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58459 states, 58405 states have (on average 3.855046656964301) internal successors, (225154), 58458 states have internal predecessors, (225154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58459 states to 58459 states and 225154 transitions. [2022-11-03 02:09:54,943 INFO L78 Accepts]: Start accepts. Automaton has 58459 states and 225154 transitions. Word has length 16 [2022-11-03 02:09:54,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:09:54,944 INFO L495 AbstractCegarLoop]: Abstraction has 58459 states and 225154 transitions. [2022-11-03 02:09:54,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:09:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 58459 states and 225154 transitions. [2022-11-03 02:09:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:09:54,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:09:54,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:09:54,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:09:54,953 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:09:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:09:54,954 INFO L85 PathProgramCache]: Analyzing trace with hash 366884105, now seen corresponding path program 1 times [2022-11-03 02:09:54,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:09:54,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940394854] [2022-11-03 02:09:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:09:54,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:09:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:09:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:09:55,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:09:55,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940394854] [2022-11-03 02:09:55,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940394854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:09:55,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:09:55,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:09:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316198289] [2022-11-03 02:09:55,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:09:55,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:09:55,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:09:55,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:09:55,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:55,442 INFO L87 Difference]: Start difference. First operand 58459 states and 225154 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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) [2022-11-03 02:09:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:09:56,645 INFO L93 Difference]: Finished difference Result 56383 states and 217119 transitions. [2022-11-03 02:09:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:09:56,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 [2022-11-03 02:09:56,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:09:56,989 INFO L225 Difference]: With dead ends: 56383 [2022-11-03 02:09:56,989 INFO L226 Difference]: Without dead ends: 56383 [2022-11-03 02:09:56,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:09:56,990 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 81 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:09:56,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 66 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:09:57,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56383 states. [2022-11-03 02:09:59,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56383 to 56383. [2022-11-03 02:09:59,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56383 states, 56340 states have (on average 3.853727369542066) internal successors, (217119), 56382 states have internal predecessors, (217119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:00,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56383 states to 56383 states and 217119 transitions. [2022-11-03 02:10:00,082 INFO L78 Accepts]: Start accepts. Automaton has 56383 states and 217119 transitions. Word has length 19 [2022-11-03 02:10:00,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:00,083 INFO L495 AbstractCegarLoop]: Abstraction has 56383 states and 217119 transitions. [2022-11-03 02:10:00,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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) [2022-11-03 02:10:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 56383 states and 217119 transitions. [2022-11-03 02:10:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:10:00,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:00,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:00,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:10:00,091 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:10:00,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash 41877542, now seen corresponding path program 1 times [2022-11-03 02:10:00,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:00,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763433708] [2022-11-03 02:10:00,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:00,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:10:00,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:00,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763433708] [2022-11-03 02:10:00,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763433708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:00,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:00,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:10:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744870310] [2022-11-03 02:10:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:00,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:10:00,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:00,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:10:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:10:00,564 INFO L87 Difference]: Start difference. First operand 56383 states and 217119 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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) [2022-11-03 02:10:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:02,739 INFO L93 Difference]: Finished difference Result 75837 states and 292581 transitions. [2022-11-03 02:10:02,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:10:02,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 [2022-11-03 02:10:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:03,377 INFO L225 Difference]: With dead ends: 75837 [2022-11-03 02:10:03,377 INFO L226 Difference]: Without dead ends: 75837 [2022-11-03 02:10:03,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:10:03,379 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 100 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:03,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 82 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:10:03,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75837 states. [2022-11-03 02:10:05,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75837 to 75837. [2022-11-03 02:10:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75837 states, 75794 states have (on average 3.8602132094888777) internal successors, (292581), 75836 states have internal predecessors, (292581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75837 states to 75837 states and 292581 transitions. [2022-11-03 02:10:06,292 INFO L78 Accepts]: Start accepts. Automaton has 75837 states and 292581 transitions. Word has length 19 [2022-11-03 02:10:06,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:06,292 INFO L495 AbstractCegarLoop]: Abstraction has 75837 states and 292581 transitions. [2022-11-03 02:10:06,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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) [2022-11-03 02:10:06,292 INFO L276 IsEmpty]: Start isEmpty. Operand 75837 states and 292581 transitions. [2022-11-03 02:10:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:10:06,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:06,315 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] [2022-11-03 02:10:06,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:10:06,316 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:10:06,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:06,317 INFO L85 PathProgramCache]: Analyzing trace with hash -271995919, now seen corresponding path program 1 times [2022-11-03 02:10:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:06,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161982568] [2022-11-03 02:10:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:06,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:07,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:10:07,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:07,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161982568] [2022-11-03 02:10:07,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161982568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:07,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:07,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:10:07,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813299675] [2022-11-03 02:10:07,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:07,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:10:07,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:07,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:10:07,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:10:07,774 INFO L87 Difference]: Start difference. First operand 75837 states and 292581 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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) [2022-11-03 02:10:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:09,180 INFO L93 Difference]: Finished difference Result 73009 states and 281630 transitions. [2022-11-03 02:10:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:10:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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 [2022-11-03 02:10:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:09,563 INFO L225 Difference]: With dead ends: 73009 [2022-11-03 02:10:09,563 INFO L226 Difference]: Without dead ends: 73009 [2022-11-03 02:10:09,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:10:09,564 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 76 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:09,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 78 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 02:10:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73009 states. [2022-11-03 02:10:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73009 to 73009. [2022-11-03 02:10:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73009 states, 72977 states have (on average 3.8591611055538046) internal successors, (281630), 73008 states have internal predecessors, (281630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73009 states to 73009 states and 281630 transitions. [2022-11-03 02:10:13,081 INFO L78 Accepts]: Start accepts. Automaton has 73009 states and 281630 transitions. Word has length 24 [2022-11-03 02:10:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:10:13,081 INFO L495 AbstractCegarLoop]: Abstraction has 73009 states and 281630 transitions. [2022-11-03 02:10:13,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 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) [2022-11-03 02:10:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 73009 states and 281630 transitions. [2022-11-03 02:10:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:10:13,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:10:13,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:10:13,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:10:13,100 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:10:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:10:13,100 INFO L85 PathProgramCache]: Analyzing trace with hash 644686566, now seen corresponding path program 1 times [2022-11-03 02:10:13,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:10:13,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62847253] [2022-11-03 02:10:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:10:13,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:10:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:10:13,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:10:13,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:10:13,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62847253] [2022-11-03 02:10:13,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62847253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:10:13,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:10:13,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:10:13,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084374833] [2022-11-03 02:10:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:10:13,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:10:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:10:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:10:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:10:13,540 INFO L87 Difference]: Start difference. First operand 73009 states and 281630 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:10:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:10:15,666 INFO L93 Difference]: Finished difference Result 75058 states and 287209 transitions. [2022-11-03 02:10:15,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:10:15,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-03 02:10:15,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:10:16,168 INFO L225 Difference]: With dead ends: 75058 [2022-11-03 02:10:16,169 INFO L226 Difference]: Without dead ends: 75058 [2022-11-03 02:10:16,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:10:16,170 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 79 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:10:16,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 75 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:10:16,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75058 states.