./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/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 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- 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 02:51:55,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:51:55,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:51:55,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:51:55,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:51:55,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:51:55,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:51:55,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:51:55,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:51:55,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:51:55,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:51:55,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:51:55,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:51:55,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:51:55,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:51:55,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:51:55,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:51:55,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:51:55,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:51:55,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:51:55,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:51:55,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:51:55,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:51:55,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:51:55,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:51:55,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:51:55,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:51:55,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:51:55,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:51:55,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:51:55,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:51:55,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:51:55,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:51:55,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:51:55,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:51:55,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:51:55,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:51:55,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:51:55,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:51:55,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:51:55,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:51:55,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 02:51:55,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:51:55,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:51:55,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:51:55,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:51:55,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:51:55,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:51:55,394 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:51:55,394 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:51:55,394 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:51:55,395 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:51:55,396 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:51:55,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:51:55,396 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:51:55,396 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:51:55,397 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:51:55,397 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:51:55,397 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:51:55,397 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:51:55,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:51:55,398 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:51:55,398 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:51:55,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:51:55,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:51:55,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:51:55,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:51:55,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:51:55,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:51:55,402 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 02:51:55,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:51:55,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:51:55,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:51:55,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:51:55,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:51:55,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:51:55,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:51:55,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:51:55,404 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:51:55,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:51:55,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:51:55,405 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:51:55,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:51:55,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:51:55,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:51:55,406 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2022-11-03 02:51:55,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:51:55,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:51:55,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:51:55,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:51:55,733 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:51:55,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-11-03 02:51:55,840 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/data/4d3e9e1ca/4c09a1ef4a8b43bca55908c31f2b9961/FLAG931a2dc28 [2022-11-03 02:51:56,499 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:51:56,500 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-11-03 02:51:56,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/data/4d3e9e1ca/4c09a1ef4a8b43bca55908c31f2b9961/FLAG931a2dc28 [2022-11-03 02:51:56,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/data/4d3e9e1ca/4c09a1ef4a8b43bca55908c31f2b9961 [2022-11-03 02:51:56,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:51:56,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:51:56,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:51:56,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:51:56,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:51:56,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:51:56" (1/1) ... [2022-11-03 02:51:56,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1a57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:56, skipping insertion in model container [2022-11-03 02:51:56,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:51:56" (1/1) ... [2022-11-03 02:51:56,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:51:56,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:51:57,283 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-11-03 02:51:57,294 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-11-03 02:51:57,302 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-11-03 02:51:57,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:51:57,328 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:51:57,368 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-11-03 02:51:57,370 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-11-03 02:51:57,373 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_01b08199-75ca-48f0-a83a-df5ac98dcd6c/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-11-03 02:51:57,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:51:57,418 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:51:57,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57 WrapperNode [2022-11-03 02:51:57,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:51:57,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:51:57,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:51:57,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:51:57,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,518 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 250 [2022-11-03 02:51:57,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:51:57,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:51:57,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:51:57,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:51:57,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,583 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:51:57,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:51:57,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:51:57,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:51:57,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (1/1) ... [2022-11-03 02:51:57,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:51:57,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:51:57,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:51:57,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:51:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:51:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-03 02:51:57,676 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-03 02:51:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-03 02:51:57,677 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-03 02:51:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:51:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:51:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:51:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:51:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:51:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:51:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:51:57,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:51:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:51:57,680 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 02:51:57,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:51:57,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:51:58,477 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:51:58,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:51:58,489 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:51:58,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:51:58 BoogieIcfgContainer [2022-11-03 02:51:58,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:51:58,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:51:58,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:51:58,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:51:58,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:51:56" (1/3) ... [2022-11-03 02:51:58,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3699004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:51:58, skipping insertion in model container [2022-11-03 02:51:58,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:51:57" (2/3) ... [2022-11-03 02:51:58,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3699004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:51:58, skipping insertion in model container [2022-11-03 02:51:58,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:51:58" (3/3) ... [2022-11-03 02:51:58,509 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-11-03 02:51:58,521 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:51:58,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:51:58,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-03 02:51:58,532 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:51:58,636 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-03 02:51:58,673 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:51:58,686 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 292 places, 298 transitions, 612 flow [2022-11-03 02:51:58,689 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 292 places, 298 transitions, 612 flow [2022-11-03 02:51:58,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 298 transitions, 612 flow [2022-11-03 02:51:58,805 INFO L130 PetriNetUnfolder]: 13/296 cut-off events. [2022-11-03 02:51:58,805 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-03 02:51:58,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 296 events. 13/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 783 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 204. Up to 2 conditions per place. [2022-11-03 02:51:58,838 INFO L118 LiptonReduction]: Number of co-enabled transitions 23022 [2022-11-03 02:52:16,891 INFO L133 LiptonReduction]: Checked pairs total: 163985 [2022-11-03 02:52:16,891 INFO L135 LiptonReduction]: Total number of compositions: 344 [2022-11-03 02:52:16,904 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 111 places, 113 transitions, 242 flow [2022-11-03 02:52:17,446 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 12301 states, 11923 states have (on average 3.1304201962593305) internal successors, (37324), 12300 states have internal predecessors, (37324), 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 02:52:17,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:52:17,480 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;@4f221b4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:52:17,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-11-03 02:52:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 12301 states, 11923 states have (on average 3.1304201962593305) internal successors, (37324), 12300 states have internal predecessors, (37324), 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 02:52:17,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:52:17,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:17,526 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:52:17,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:17,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:17,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1167, now seen corresponding path program 1 times [2022-11-03 02:52:17,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:17,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577174444] [2022-11-03 02:52:17,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:17,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:17,745 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 02:52:17,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:17,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577174444] [2022-11-03 02:52:17,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577174444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:17,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:17,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:52:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068348088] [2022-11-03 02:52:17,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:17,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:52:17,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:17,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:52:17,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:52:17,807 INFO L87 Difference]: Start difference. First operand has 12301 states, 11923 states have (on average 3.1304201962593305) internal successors, (37324), 12300 states have internal predecessors, (37324), 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 02:52:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:18,082 INFO L93 Difference]: Finished difference Result 8628 states and 25915 transitions. [2022-11-03 02:52:18,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:52:18,088 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 02:52:18,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:18,232 INFO L225 Difference]: With dead ends: 8628 [2022-11-03 02:52:18,232 INFO L226 Difference]: Without dead ends: 8627 [2022-11-03 02:52:18,233 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 02:52:18,238 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:18,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:18,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8627 states. [2022-11-03 02:52:18,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8627 to 8627. [2022-11-03 02:52:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8627 states, 8523 states have (on average 3.0403613751026635) internal successors, (25913), 8626 states have internal predecessors, (25913), 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 02:52:18,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8627 states to 8627 states and 25913 transitions. [2022-11-03 02:52:18,798 INFO L78 Accepts]: Start accepts. Automaton has 8627 states and 25913 transitions. Word has length 1 [2022-11-03 02:52:18,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:18,798 INFO L495 AbstractCegarLoop]: Abstraction has 8627 states and 25913 transitions. [2022-11-03 02:52:18,799 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 02:52:18,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8627 states and 25913 transitions. [2022-11-03 02:52:18,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 02:52:18,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:18,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 02:52:18,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:52:18,801 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:18,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:18,802 INFO L85 PathProgramCache]: Analyzing trace with hash -27631125, now seen corresponding path program 1 times [2022-11-03 02:52:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:18,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803279925] [2022-11-03 02:52:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:18,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:18,960 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 02:52:18,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:18,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803279925] [2022-11-03 02:52:18,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803279925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:18,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:18,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:18,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162329683] [2022-11-03 02:52:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:18,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:18,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:18,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:18,973 INFO L87 Difference]: Start difference. First operand 8627 states and 25913 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:19,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:19,375 INFO L93 Difference]: Finished difference Result 15140 states and 45596 transitions. [2022-11-03 02:52:19,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:19,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-03 02:52:19,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:19,475 INFO L225 Difference]: With dead ends: 15140 [2022-11-03 02:52:19,476 INFO L226 Difference]: Without dead ends: 15140 [2022-11-03 02:52:19,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:19,477 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 75 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:19,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 89 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:52:19,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15140 states. [2022-11-03 02:52:20,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15140 to 8841. [2022-11-03 02:52:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8841 states, 8737 states have (on average 3.064896417534623) internal successors, (26778), 8840 states have internal predecessors, (26778), 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 02:52:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8841 states to 8841 states and 26778 transitions. [2022-11-03 02:52:20,404 INFO L78 Accepts]: Start accepts. Automaton has 8841 states and 26778 transitions. Word has length 6 [2022-11-03 02:52:20,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:20,405 INFO L495 AbstractCegarLoop]: Abstraction has 8841 states and 26778 transitions. [2022-11-03 02:52:20,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand 8841 states and 26778 transitions. [2022-11-03 02:52:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:52:20,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:20,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:20,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:52:20,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:20,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash 273573743, now seen corresponding path program 1 times [2022-11-03 02:52:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:20,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310993258] [2022-11-03 02:52:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:20,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:20,569 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 02:52:20,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:20,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310993258] [2022-11-03 02:52:20,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310993258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:20,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:20,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:20,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347681972] [2022-11-03 02:52:20,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:20,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:20,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:20,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:20,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:20,572 INFO L87 Difference]: Start difference. First operand 8841 states and 26778 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:20,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:20,988 INFO L93 Difference]: Finished difference Result 14794 states and 44971 transitions. [2022-11-03 02:52:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 02:52:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:21,148 INFO L225 Difference]: With dead ends: 14794 [2022-11-03 02:52:21,149 INFO L226 Difference]: Without dead ends: 14794 [2022-11-03 02:52:21,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:21,153 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 73 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:21,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 87 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:52:21,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14794 states. [2022-11-03 02:52:21,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14794 to 9096. [2022-11-03 02:52:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9096 states, 8994 states have (on average 3.0900600400266844) internal successors, (27792), 9095 states have internal predecessors, (27792), 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 02:52:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9096 states to 9096 states and 27792 transitions. [2022-11-03 02:52:21,844 INFO L78 Accepts]: Start accepts. Automaton has 9096 states and 27792 transitions. Word has length 8 [2022-11-03 02:52:21,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:21,849 INFO L495 AbstractCegarLoop]: Abstraction has 9096 states and 27792 transitions. [2022-11-03 02:52:21,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:21,850 INFO L276 IsEmpty]: Start isEmpty. Operand 9096 states and 27792 transitions. [2022-11-03 02:52:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:52:21,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:21,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:21,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:52:21,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:21,855 INFO L85 PathProgramCache]: Analyzing trace with hash 911395852, now seen corresponding path program 1 times [2022-11-03 02:52:21,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:21,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123198837] [2022-11-03 02:52:21,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:21,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:21,941 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 02:52:21,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:21,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123198837] [2022-11-03 02:52:21,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123198837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:21,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:21,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:21,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279627668] [2022-11-03 02:52:21,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:21,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:21,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:21,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:21,945 INFO L87 Difference]: Start difference. First operand 9096 states and 27792 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:22,185 INFO L93 Difference]: Finished difference Result 9696 states and 29326 transitions. [2022-11-03 02:52:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:22,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:52:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:22,238 INFO L225 Difference]: With dead ends: 9696 [2022-11-03 02:52:22,238 INFO L226 Difference]: Without dead ends: 9696 [2022-11-03 02:52:22,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:22,239 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 79 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:22,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 54 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:22,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9696 states. [2022-11-03 02:52:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9696 to 9096. [2022-11-03 02:52:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9096 states, 8996 states have (on average 3.060137839039573) internal successors, (27529), 9095 states have internal predecessors, (27529), 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 02:52:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9096 states to 9096 states and 27529 transitions. [2022-11-03 02:52:22,744 INFO L78 Accepts]: Start accepts. Automaton has 9096 states and 27529 transitions. Word has length 10 [2022-11-03 02:52:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:22,744 INFO L495 AbstractCegarLoop]: Abstraction has 9096 states and 27529 transitions. [2022-11-03 02:52:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 9096 states and 27529 transitions. [2022-11-03 02:52:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:52:22,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:22,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:22,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:52:22,747 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1804550003, now seen corresponding path program 1 times [2022-11-03 02:52:22,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:22,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374941793] [2022-11-03 02:52:22,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:22,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:23,083 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 02:52:23,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:23,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374941793] [2022-11-03 02:52:23,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374941793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:23,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:23,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:52:23,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378383144] [2022-11-03 02:52:23,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:23,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:52:23,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:23,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:52:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:52:23,086 INFO L87 Difference]: Start difference. First operand 9096 states and 27529 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:23,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:23,934 INFO L93 Difference]: Finished difference Result 14652 states and 43917 transitions. [2022-11-03 02:52:23,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:52:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:52:23,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:24,010 INFO L225 Difference]: With dead ends: 14652 [2022-11-03 02:52:24,011 INFO L226 Difference]: Without dead ends: 14652 [2022-11-03 02:52:24,011 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 02:52:24,012 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 274 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:24,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 258 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 02:52:24,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14652 states. [2022-11-03 02:52:24,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14652 to 13369. [2022-11-03 02:52:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13369 states, 13269 states have (on average 3.099932172733439) internal successors, (41133), 13368 states have internal predecessors, (41133), 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 02:52:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 41133 transitions. [2022-11-03 02:52:24,601 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 41133 transitions. Word has length 10 [2022-11-03 02:52:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:24,601 INFO L495 AbstractCegarLoop]: Abstraction has 13369 states and 41133 transitions. [2022-11-03 02:52:24,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 41133 transitions. [2022-11-03 02:52:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:52:24,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:24,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:24,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:52:24,604 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:24,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:24,605 INFO L85 PathProgramCache]: Analyzing trace with hash -416517327, now seen corresponding path program 1 times [2022-11-03 02:52:24,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:24,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783953826] [2022-11-03 02:52:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:24,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:24,725 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 02:52:24,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:24,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783953826] [2022-11-03 02:52:24,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783953826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:24,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:24,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:52:24,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762550490] [2022-11-03 02:52:24,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:24,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:52:24,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:24,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:52:24,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:52:24,728 INFO L87 Difference]: Start difference. First operand 13369 states and 41133 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:25,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:25,140 INFO L93 Difference]: Finished difference Result 23962 states and 73204 transitions. [2022-11-03 02:52:25,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:52:25,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:52:25,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:25,267 INFO L225 Difference]: With dead ends: 23962 [2022-11-03 02:52:25,267 INFO L226 Difference]: Without dead ends: 23955 [2022-11-03 02:52:25,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:52:25,269 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 109 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:25,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 171 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:52:25,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23955 states. [2022-11-03 02:52:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23955 to 14881. [2022-11-03 02:52:25,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14881 states, 14777 states have (on average 3.1240441226229954) internal successors, (46164), 14880 states have internal predecessors, (46164), 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 02:52:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14881 states to 14881 states and 46164 transitions. [2022-11-03 02:52:26,141 INFO L78 Accepts]: Start accepts. Automaton has 14881 states and 46164 transitions. Word has length 12 [2022-11-03 02:52:26,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:26,143 INFO L495 AbstractCegarLoop]: Abstraction has 14881 states and 46164 transitions. [2022-11-03 02:52:26,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:26,144 INFO L276 IsEmpty]: Start isEmpty. Operand 14881 states and 46164 transitions. [2022-11-03 02:52:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:52:26,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:26,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:26,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:52:26,146 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:26,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:26,146 INFO L85 PathProgramCache]: Analyzing trace with hash -419064456, now seen corresponding path program 1 times [2022-11-03 02:52:26,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:26,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532523308] [2022-11-03 02:52:26,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:26,311 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 02:52:26,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:26,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532523308] [2022-11-03 02:52:26,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532523308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:26,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:26,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:26,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904782402] [2022-11-03 02:52:26,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:26,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:26,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:26,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:26,316 INFO L87 Difference]: Start difference. First operand 14881 states and 46164 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:26,592 INFO L93 Difference]: Finished difference Result 15095 states and 46802 transitions. [2022-11-03 02:52:26,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:26,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:52:26,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:26,655 INFO L225 Difference]: With dead ends: 15095 [2022-11-03 02:52:26,655 INFO L226 Difference]: Without dead ends: 15095 [2022-11-03 02:52:26,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:26,656 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 35 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:26,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 70 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:52:26,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15095 states. [2022-11-03 02:52:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15095 to 15095. [2022-11-03 02:52:27,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15095 states, 14991 states have (on average 3.122006537255687) internal successors, (46802), 15094 states have internal predecessors, (46802), 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 02:52:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15095 states to 15095 states and 46802 transitions. [2022-11-03 02:52:27,214 INFO L78 Accepts]: Start accepts. Automaton has 15095 states and 46802 transitions. Word has length 12 [2022-11-03 02:52:27,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:27,215 INFO L495 AbstractCegarLoop]: Abstraction has 15095 states and 46802 transitions. [2022-11-03 02:52:27,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 15095 states and 46802 transitions. [2022-11-03 02:52:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:52:27,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:27,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:27,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:52:27,222 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:27,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:27,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1388464542, now seen corresponding path program 1 times [2022-11-03 02:52:27,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:27,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624744040] [2022-11-03 02:52:27,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:27,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:27,278 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 02:52:27,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:27,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624744040] [2022-11-03 02:52:27,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624744040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:27,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:27,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562594500] [2022-11-03 02:52:27,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:27,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:27,280 INFO L87 Difference]: Start difference. First operand 15095 states and 46802 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 02:52:27,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:27,858 INFO L93 Difference]: Finished difference Result 27446 states and 85275 transitions. [2022-11-03 02:52:27,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:27,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-03 02:52:27,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:27,972 INFO L225 Difference]: With dead ends: 27446 [2022-11-03 02:52:27,972 INFO L226 Difference]: Without dead ends: 27446 [2022-11-03 02:52:27,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:27,976 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 79 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:27,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 96 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:52:28,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27446 states. [2022-11-03 02:52:28,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27446 to 15419. [2022-11-03 02:52:28,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15419 states, 15318 states have (on average 3.1162031596814206) internal successors, (47734), 15418 states have internal predecessors, (47734), 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 02:52:28,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15419 states to 15419 states and 47734 transitions. [2022-11-03 02:52:28,668 INFO L78 Accepts]: Start accepts. Automaton has 15419 states and 47734 transitions. Word has length 13 [2022-11-03 02:52:28,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:28,669 INFO L495 AbstractCegarLoop]: Abstraction has 15419 states and 47734 transitions. [2022-11-03 02:52:28,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 02:52:28,669 INFO L276 IsEmpty]: Start isEmpty. Operand 15419 states and 47734 transitions. [2022-11-03 02:52:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:52:28,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:28,671 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:28,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:52:28,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:28,672 INFO L85 PathProgramCache]: Analyzing trace with hash -92696572, now seen corresponding path program 1 times [2022-11-03 02:52:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:28,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806338496] [2022-11-03 02:52:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:28,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:28,735 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 02:52:28,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:28,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806338496] [2022-11-03 02:52:28,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806338496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:28,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:28,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:52:28,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910545706] [2022-11-03 02:52:28,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:28,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:28,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:28,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:28,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:28,739 INFO L87 Difference]: Start difference. First operand 15419 states and 47734 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 02:52:29,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:29,100 INFO L93 Difference]: Finished difference Result 15929 states and 49268 transitions. [2022-11-03 02:52:29,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:29,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 02:52:29,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:29,148 INFO L225 Difference]: With dead ends: 15929 [2022-11-03 02:52:29,148 INFO L226 Difference]: Without dead ends: 15929 [2022-11-03 02:52:29,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:29,149 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 52 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:29,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 94 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:29,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15929 states. [2022-11-03 02:52:29,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15929 to 15929. [2022-11-03 02:52:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15929 states, 15828 states have (on average 3.112711650240081) internal successors, (49268), 15928 states have internal predecessors, (49268), 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 02:52:29,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15929 states to 15929 states and 49268 transitions. [2022-11-03 02:52:29,647 INFO L78 Accepts]: Start accepts. Automaton has 15929 states and 49268 transitions. Word has length 14 [2022-11-03 02:52:29,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:29,648 INFO L495 AbstractCegarLoop]: Abstraction has 15929 states and 49268 transitions. [2022-11-03 02:52:29,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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 02:52:29,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15929 states and 49268 transitions. [2022-11-03 02:52:29,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:52:29,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:29,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:29,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:52:29,652 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1535028917, now seen corresponding path program 1 times [2022-11-03 02:52:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:29,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697377542] [2022-11-03 02:52:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:29,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:29,787 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 02:52:29,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:29,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697377542] [2022-11-03 02:52:29,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697377542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:29,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:29,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:29,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536494555] [2022-11-03 02:52:29,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:29,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:29,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:29,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:29,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:29,789 INFO L87 Difference]: Start difference. First operand 15929 states and 49268 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 02:52:30,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:30,363 INFO L93 Difference]: Finished difference Result 29252 states and 90721 transitions. [2022-11-03 02:52:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:30,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 02:52:30,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:30,474 INFO L225 Difference]: With dead ends: 29252 [2022-11-03 02:52:30,474 INFO L226 Difference]: Without dead ends: 29252 [2022-11-03 02:52:30,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:30,475 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 69 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:30,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 82 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:52:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29252 states. [2022-11-03 02:52:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29252 to 16245. [2022-11-03 02:52:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16245 states, 16147 states have (on average 3.107512231374249) internal successors, (50177), 16244 states have internal predecessors, (50177), 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 02:52:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16245 states to 16245 states and 50177 transitions. [2022-11-03 02:52:30,990 INFO L78 Accepts]: Start accepts. Automaton has 16245 states and 50177 transitions. Word has length 15 [2022-11-03 02:52:30,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:30,991 INFO L495 AbstractCegarLoop]: Abstraction has 16245 states and 50177 transitions. [2022-11-03 02:52:30,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 02:52:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16245 states and 50177 transitions. [2022-11-03 02:52:30,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:52:30,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:30,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:30,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:52:30,994 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash 716133937, now seen corresponding path program 1 times [2022-11-03 02:52:30,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:31,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599807646] [2022-11-03 02:52:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:31,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:31,471 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 02:52:31,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:31,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599807646] [2022-11-03 02:52:31,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599807646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:31,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:31,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:52:31,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392103152] [2022-11-03 02:52:31,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:31,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:52:31,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:31,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:52:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:52:31,474 INFO L87 Difference]: Start difference. First operand 16245 states and 50177 transitions. Second operand has 5 states, 4 states have (on average 4.0) 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 02:52:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:31,877 INFO L93 Difference]: Finished difference Result 16389 states and 50620 transitions. [2022-11-03 02:52:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:52:31,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) 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 02:52:31,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:31,937 INFO L225 Difference]: With dead ends: 16389 [2022-11-03 02:52:31,937 INFO L226 Difference]: Without dead ends: 16389 [2022-11-03 02:52:31,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:52:31,938 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 115 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:31,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 84 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:52:31,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16389 states. [2022-11-03 02:52:32,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16389 to 16229. [2022-11-03 02:52:32,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16229 states, 16139 states have (on average 3.107813371336514) internal successors, (50157), 16228 states have internal predecessors, (50157), 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 02:52:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16229 states to 16229 states and 50157 transitions. [2022-11-03 02:52:32,288 INFO L78 Accepts]: Start accepts. Automaton has 16229 states and 50157 transitions. Word has length 16 [2022-11-03 02:52:32,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:32,289 INFO L495 AbstractCegarLoop]: Abstraction has 16229 states and 50157 transitions. [2022-11-03 02:52:32,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) 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 02:52:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 16229 states and 50157 transitions. [2022-11-03 02:52:32,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:52:32,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:32,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:32,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 02:52:32,293 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:32,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:32,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1124975370, now seen corresponding path program 1 times [2022-11-03 02:52:32,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:32,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24261859] [2022-11-03 02:52:32,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:32,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:32,310 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:52:32,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054235323] [2022-11-03 02:52:32,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:32,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:32,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:32,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:32,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:52:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:32,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:52:32,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:32,658 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 02:52:32,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:52:32,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:32,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24261859] [2022-11-03 02:52:32,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:52:32,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054235323] [2022-11-03 02:52:32,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054235323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:32,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:32,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:32,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96916259] [2022-11-03 02:52:32,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:32,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:32,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:32,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:32,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:32,661 INFO L87 Difference]: Start difference. First operand 16229 states and 50157 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:32,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:32,872 INFO L93 Difference]: Finished difference Result 16407 states and 50702 transitions. [2022-11-03 02:52:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:32,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:52:32,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:32,912 INFO L225 Difference]: With dead ends: 16407 [2022-11-03 02:52:32,913 INFO L226 Difference]: Without dead ends: 16407 [2022-11-03 02:52:32,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:32,913 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:32,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 84 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:32,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16407 states. [2022-11-03 02:52:33,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16407 to 16407. [2022-11-03 02:52:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16407 states, 16325 states have (on average 3.105788667687596) internal successors, (50702), 16406 states have internal predecessors, (50702), 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 02:52:33,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16407 states to 16407 states and 50702 transitions. [2022-11-03 02:52:33,224 INFO L78 Accepts]: Start accepts. Automaton has 16407 states and 50702 transitions. Word has length 17 [2022-11-03 02:52:33,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:33,224 INFO L495 AbstractCegarLoop]: Abstraction has 16407 states and 50702 transitions. [2022-11-03 02:52:33,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:33,225 INFO L276 IsEmpty]: Start isEmpty. Operand 16407 states and 50702 transitions. [2022-11-03 02:52:33,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:52:33,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:33,229 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:33,258 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 02:52:33,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-03 02:52:33,443 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash -779894390, now seen corresponding path program 1 times [2022-11-03 02:52:33,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:33,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997204068] [2022-11-03 02:52:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:33,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:52:33,486 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:33,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997204068] [2022-11-03 02:52:33,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997204068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:33,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:33,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:52:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580139113] [2022-11-03 02:52:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:33,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:33,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:33,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:33,488 INFO L87 Difference]: Start difference. First operand 16407 states and 50702 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:33,844 INFO L93 Difference]: Finished difference Result 20984 states and 64843 transitions. [2022-11-03 02:52:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:33,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:52:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:33,900 INFO L225 Difference]: With dead ends: 20984 [2022-11-03 02:52:33,900 INFO L226 Difference]: Without dead ends: 20977 [2022-11-03 02:52:33,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:33,901 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 55 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:33,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 91 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:52:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20977 states. [2022-11-03 02:52:34,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20977 to 19554. [2022-11-03 02:52:34,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19554 states, 19459 states have (on average 3.179813967829796) internal successors, (61876), 19553 states have internal predecessors, (61876), 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 02:52:34,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19554 states to 19554 states and 61876 transitions. [2022-11-03 02:52:34,537 INFO L78 Accepts]: Start accepts. Automaton has 19554 states and 61876 transitions. Word has length 17 [2022-11-03 02:52:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:34,537 INFO L495 AbstractCegarLoop]: Abstraction has 19554 states and 61876 transitions. [2022-11-03 02:52:34,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 19554 states and 61876 transitions. [2022-11-03 02:52:34,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 02:52:34,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:34,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:34,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:52:34,543 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:34,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:34,544 INFO L85 PathProgramCache]: Analyzing trace with hash -762980291, now seen corresponding path program 1 times [2022-11-03 02:52:34,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:34,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074785724] [2022-11-03 02:52:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:34,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:34,661 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 02:52:34,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:34,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074785724] [2022-11-03 02:52:34,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074785724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:34,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:34,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:52:34,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428905109] [2022-11-03 02:52:34,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:34,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:52:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:52:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:52:34,665 INFO L87 Difference]: Start difference. First operand 19554 states and 61876 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:35,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:35,053 INFO L93 Difference]: Finished difference Result 28539 states and 89343 transitions. [2022-11-03 02:52:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:52:35,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 02:52:35,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:35,144 INFO L225 Difference]: With dead ends: 28539 [2022-11-03 02:52:35,145 INFO L226 Difference]: Without dead ends: 28491 [2022-11-03 02:52:35,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:52:35,145 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 104 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:35,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 118 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:52:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28491 states. [2022-11-03 02:52:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28491 to 27375. [2022-11-03 02:52:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27375 states, 27274 states have (on average 3.188311212143433) internal successors, (86958), 27374 states have internal predecessors, (86958), 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 02:52:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27375 states to 27375 states and 86958 transitions. [2022-11-03 02:52:36,061 INFO L78 Accepts]: Start accepts. Automaton has 27375 states and 86958 transitions. Word has length 17 [2022-11-03 02:52:36,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:36,061 INFO L495 AbstractCegarLoop]: Abstraction has 27375 states and 86958 transitions. [2022-11-03 02:52:36,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 27375 states and 86958 transitions. [2022-11-03 02:52:36,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:52:36,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:36,066 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 02:52:36,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 02:52:36,067 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:36,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash 680880377, now seen corresponding path program 1 times [2022-11-03 02:52:36,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:36,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083088801] [2022-11-03 02:52:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:36,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:36,521 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 02:52:36,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:36,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083088801] [2022-11-03 02:52:36,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083088801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:36,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:36,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:52:36,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92941589] [2022-11-03 02:52:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:36,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:52:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:52:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:52:36,524 INFO L87 Difference]: Start difference. First operand 27375 states and 86958 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 02:52:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:37,317 INFO L93 Difference]: Finished difference Result 25561 states and 81060 transitions. [2022-11-03 02:52:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:52:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 02:52:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:37,388 INFO L225 Difference]: With dead ends: 25561 [2022-11-03 02:52:37,388 INFO L226 Difference]: Without dead ends: 25557 [2022-11-03 02:52:37,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:52:37,389 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 410 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:37,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 253 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 02:52:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25557 states. [2022-11-03 02:52:38,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25557 to 18305. [2022-11-03 02:52:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18305 states, 18250 states have (on average 3.148986301369863) internal successors, (57469), 18304 states have internal predecessors, (57469), 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 02:52:38,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18305 states to 18305 states and 57469 transitions. [2022-11-03 02:52:38,066 INFO L78 Accepts]: Start accepts. Automaton has 18305 states and 57469 transitions. Word has length 19 [2022-11-03 02:52:38,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:38,066 INFO L495 AbstractCegarLoop]: Abstraction has 18305 states and 57469 transitions. [2022-11-03 02:52:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 02:52:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 18305 states and 57469 transitions. [2022-11-03 02:52:38,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:52:38,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:38,072 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] [2022-11-03 02:52:38,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 02:52:38,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash 947888476, now seen corresponding path program 1 times [2022-11-03 02:52:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126111723] [2022-11-03 02:52:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:38,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:38,110 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 02:52:38,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:38,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126111723] [2022-11-03 02:52:38,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126111723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:38,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:38,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:38,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580562706] [2022-11-03 02:52:38,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:38,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:38,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:38,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:38,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:38,113 INFO L87 Difference]: Start difference. First operand 18305 states and 57469 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:38,363 INFO L93 Difference]: Finished difference Result 18445 states and 57597 transitions. [2022-11-03 02:52:38,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:38,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-03 02:52:38,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:38,409 INFO L225 Difference]: With dead ends: 18445 [2022-11-03 02:52:38,409 INFO L226 Difference]: Without dead ends: 18445 [2022-11-03 02:52:38,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:38,409 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 50 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:38,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 84 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:38,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18445 states. [2022-11-03 02:52:38,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18445 to 18445. [2022-11-03 02:52:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18445 states, 18394 states have (on average 3.131292812873763) internal successors, (57597), 18444 states have internal predecessors, (57597), 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 02:52:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18445 states to 18445 states and 57597 transitions. [2022-11-03 02:52:38,943 INFO L78 Accepts]: Start accepts. Automaton has 18445 states and 57597 transitions. Word has length 21 [2022-11-03 02:52:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:38,943 INFO L495 AbstractCegarLoop]: Abstraction has 18445 states and 57597 transitions. [2022-11-03 02:52:38,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 18445 states and 57597 transitions. [2022-11-03 02:52:38,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 02:52:38,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:38,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:38,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 02:52:38,949 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:38,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:38,950 INFO L85 PathProgramCache]: Analyzing trace with hash 86483208, now seen corresponding path program 1 times [2022-11-03 02:52:38,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:38,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992947518] [2022-11-03 02:52:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:38,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:52:39,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:39,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992947518] [2022-11-03 02:52:39,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992947518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:52:39,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520732218] [2022-11-03 02:52:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:39,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:39,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:39,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:39,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:52:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:39,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:52:39,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:52:39,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:52:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:52:39,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520732218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:52:39,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1380358625] [2022-11-03 02:52:39,231 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 02:52:39,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:52:39,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-03 02:52:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685428388] [2022-11-03 02:52:39,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:52:39,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:52:39,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:39,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:52:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:52:39,237 INFO L87 Difference]: Start difference. First operand 18445 states and 57597 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 02:52:39,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:39,914 INFO L93 Difference]: Finished difference Result 58664 states and 181837 transitions. [2022-11-03 02:52:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:52:39,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-03 02:52:39,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:40,431 INFO L225 Difference]: With dead ends: 58664 [2022-11-03 02:52:40,431 INFO L226 Difference]: Without dead ends: 58664 [2022-11-03 02:52:40,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:52:40,432 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 442 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:40,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 200 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:52:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58664 states. [2022-11-03 02:52:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58664 to 53995. [2022-11-03 02:52:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53995 states, 53944 states have (on average 3.2021911612042118) internal successors, (172739), 53994 states have internal predecessors, (172739), 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 02:52:41,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53995 states to 53995 states and 172739 transitions. [2022-11-03 02:52:41,998 INFO L78 Accepts]: Start accepts. Automaton has 53995 states and 172739 transitions. Word has length 22 [2022-11-03 02:52:41,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:41,998 INFO L495 AbstractCegarLoop]: Abstraction has 53995 states and 172739 transitions. [2022-11-03 02:52:41,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 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 02:52:41,998 INFO L276 IsEmpty]: Start isEmpty. Operand 53995 states and 172739 transitions. [2022-11-03 02:52:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:52:42,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:42,003 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] [2022-11-03 02:52:42,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:42,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:42,205 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:42,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2135658908, now seen corresponding path program 1 times [2022-11-03 02:52:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:42,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154237466] [2022-11-03 02:52:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:42,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:42,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:52:42,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455974304] [2022-11-03 02:52:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:42,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:42,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:42,243 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:42,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:52:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:42,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:52:42,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:42,392 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 02:52:42,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:52:42,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:42,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154237466] [2022-11-03 02:52:42,393 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:52:42,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455974304] [2022-11-03 02:52:42,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455974304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:42,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:42,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:42,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548790373] [2022-11-03 02:52:42,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:42,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:42,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:42,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:42,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:42,397 INFO L87 Difference]: Start difference. First operand 53995 states and 172739 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 02:52:42,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:42,874 INFO L93 Difference]: Finished difference Result 54567 states and 174298 transitions. [2022-11-03 02:52:42,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:42,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 23 [2022-11-03 02:52:42,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:43,478 INFO L225 Difference]: With dead ends: 54567 [2022-11-03 02:52:43,479 INFO L226 Difference]: Without dead ends: 54567 [2022-11-03 02:52:43,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:43,480 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 37 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:43,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 82 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54567 states. [2022-11-03 02:52:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54567 to 54567. [2022-11-03 02:52:44,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54567 states, 54521 states have (on average 3.1968966086462096) internal successors, (174298), 54566 states have internal predecessors, (174298), 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 02:52:44,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54567 states to 54567 states and 174298 transitions. [2022-11-03 02:52:44,847 INFO L78 Accepts]: Start accepts. Automaton has 54567 states and 174298 transitions. Word has length 23 [2022-11-03 02:52:44,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:44,848 INFO L495 AbstractCegarLoop]: Abstraction has 54567 states and 174298 transitions. [2022-11-03 02:52:44,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 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 02:52:44,848 INFO L276 IsEmpty]: Start isEmpty. Operand 54567 states and 174298 transitions. [2022-11-03 02:52:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:52:44,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:44,853 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 02:52:44,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:45,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 02:52:45,055 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:45,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:45,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1306734009, now seen corresponding path program 1 times [2022-11-03 02:52:45,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:45,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783382734] [2022-11-03 02:52:45,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:45,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:45,078 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:52:45,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65780251] [2022-11-03 02:52:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:45,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:45,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:45,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:52:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:45,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:52:45,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:45,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:52:45,302 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 02:52:45,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:52:45,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:45,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783382734] [2022-11-03 02:52:45,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:52:45,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65780251] [2022-11-03 02:52:45,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65780251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:45,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:45,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:52:45,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451061537] [2022-11-03 02:52:45,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:45,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:45,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:45,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:45,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:45,305 INFO L87 Difference]: Start difference. First operand 54567 states and 174298 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:45,467 INFO L93 Difference]: Finished difference Result 10110 states and 26717 transitions. [2022-11-03 02:52:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:45,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 02:52:45,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:45,491 INFO L225 Difference]: With dead ends: 10110 [2022-11-03 02:52:45,491 INFO L226 Difference]: Without dead ends: 9655 [2022-11-03 02:52:45,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:45,492 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 57 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:45,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 42 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:45,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9655 states. [2022-11-03 02:52:45,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9655 to 7324. [2022-11-03 02:52:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7324 states, 7317 states have (on average 2.6464397977313108) internal successors, (19364), 7323 states have internal predecessors, (19364), 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 02:52:45,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 19364 transitions. [2022-11-03 02:52:45,634 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 19364 transitions. Word has length 24 [2022-11-03 02:52:45,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:45,635 INFO L495 AbstractCegarLoop]: Abstraction has 7324 states and 19364 transitions. [2022-11-03 02:52:45,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 19364 transitions. [2022-11-03 02:52:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:52:45,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:45,638 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 02:52:45,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:45,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:45,842 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:45,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash -860820476, now seen corresponding path program 1 times [2022-11-03 02:52:45,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:45,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349443151] [2022-11-03 02:52:45,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:45,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:45,919 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 02:52:45,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:45,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349443151] [2022-11-03 02:52:45,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349443151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:45,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:45,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:45,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948695596] [2022-11-03 02:52:45,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:45,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:45,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:45,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:45,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:45,922 INFO L87 Difference]: Start difference. First operand 7324 states and 19364 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:46,073 INFO L93 Difference]: Finished difference Result 7275 states and 19139 transitions. [2022-11-03 02:52:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:46,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-03 02:52:46,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:46,085 INFO L225 Difference]: With dead ends: 7275 [2022-11-03 02:52:46,085 INFO L226 Difference]: Without dead ends: 7185 [2022-11-03 02:52:46,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:46,086 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 16 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:46,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 56 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-11-03 02:52:46,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 7185. [2022-11-03 02:52:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7185 states, 7181 states have (on average 2.6390474864225038) internal successors, (18951), 7184 states have internal predecessors, (18951), 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 02:52:46,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7185 states to 7185 states and 18951 transitions. [2022-11-03 02:52:46,302 INFO L78 Accepts]: Start accepts. Automaton has 7185 states and 18951 transitions. Word has length 24 [2022-11-03 02:52:46,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:46,303 INFO L495 AbstractCegarLoop]: Abstraction has 7185 states and 18951 transitions. [2022-11-03 02:52:46,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 7185 states and 18951 transitions. [2022-11-03 02:52:46,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 02:52:46,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:46,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:46,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 02:52:46,307 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:46,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2070301126, now seen corresponding path program 1 times [2022-11-03 02:52:46,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:46,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351380184] [2022-11-03 02:52:46,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:46,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:46,331 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:52:46,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [851081137] [2022-11-03 02:52:46,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:46,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:46,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:46,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:46,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:52:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:46,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:52:46,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:46,522 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 02:52:46,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:52:46,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:46,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351380184] [2022-11-03 02:52:46,523 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:52:46,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851081137] [2022-11-03 02:52:46,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851081137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:46,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:46,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:46,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764707055] [2022-11-03 02:52:46,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:46,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:46,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:46,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:46,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:46,525 INFO L87 Difference]: Start difference. First operand 7185 states and 18951 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 02:52:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:46,681 INFO L93 Difference]: Finished difference Result 7155 states and 18811 transitions. [2022-11-03 02:52:46,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:46,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2022-11-03 02:52:46,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:46,695 INFO L225 Difference]: With dead ends: 7155 [2022-11-03 02:52:46,695 INFO L226 Difference]: Without dead ends: 7155 [2022-11-03 02:52:46,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:46,697 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 11 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:46,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 47 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7155 states. [2022-11-03 02:52:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7155 to 7155. [2022-11-03 02:52:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7155 states, 7152 states have (on average 2.6301733780760626) internal successors, (18811), 7154 states have internal predecessors, (18811), 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 02:52:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7155 states to 7155 states and 18811 transitions. [2022-11-03 02:52:46,861 INFO L78 Accepts]: Start accepts. Automaton has 7155 states and 18811 transitions. Word has length 26 [2022-11-03 02:52:46,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:46,861 INFO L495 AbstractCegarLoop]: Abstraction has 7155 states and 18811 transitions. [2022-11-03 02:52:46,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 02:52:46,862 INFO L276 IsEmpty]: Start isEmpty. Operand 7155 states and 18811 transitions. [2022-11-03 02:52:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 02:52:46,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:46,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:46,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:47,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:47,067 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:47,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:47,067 INFO L85 PathProgramCache]: Analyzing trace with hash 617607363, now seen corresponding path program 1 times [2022-11-03 02:52:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:47,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835372232] [2022-11-03 02:52:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:47,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:47,094 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:52:47,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426497846] [2022-11-03 02:52:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:47,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:47,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:47,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:47,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:52:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:47,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:52:47,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:47,265 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 02:52:47,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:52:47,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:47,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835372232] [2022-11-03 02:52:47,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:52:47,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426497846] [2022-11-03 02:52:47,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426497846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:47,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:52:47,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:52:47,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406369204] [2022-11-03 02:52:47,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:47,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:52:47,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:52:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:47,269 INFO L87 Difference]: Start difference. First operand 7155 states and 18811 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:47,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:47,434 INFO L93 Difference]: Finished difference Result 7125 states and 18671 transitions. [2022-11-03 02:52:47,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:52:47,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-03 02:52:47,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:47,452 INFO L225 Difference]: With dead ends: 7125 [2022-11-03 02:52:47,452 INFO L226 Difference]: Without dead ends: 7125 [2022-11-03 02:52:47,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:52:47,453 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:47,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 44 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:52:47,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7125 states. [2022-11-03 02:52:47,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7125 to 7125. [2022-11-03 02:52:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7125 states, 7123 states have (on average 2.6212270110908324) internal successors, (18671), 7124 states have internal predecessors, (18671), 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 02:52:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7125 states to 7125 states and 18671 transitions. [2022-11-03 02:52:47,646 INFO L78 Accepts]: Start accepts. Automaton has 7125 states and 18671 transitions. Word has length 29 [2022-11-03 02:52:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:47,647 INFO L495 AbstractCegarLoop]: Abstraction has 7125 states and 18671 transitions. [2022-11-03 02:52:47,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7125 states and 18671 transitions. [2022-11-03 02:52:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-03 02:52:47,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:52:47,654 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:47,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:47,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-03 02:52:47,867 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-11-03 02:52:47,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:52:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 262295681, now seen corresponding path program 2 times [2022-11-03 02:52:47,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:52:47,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242427847] [2022-11-03 02:52:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:52:47,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:52:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:52:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:52:48,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:52:48,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242427847] [2022-11-03 02:52:48,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242427847] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:52:48,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008191835] [2022-11-03 02:52:48,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:52:48,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:52:48,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:52:48,015 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:52:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:52:48,175 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 02:52:48,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:52:48,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:52:48,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:52:48,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:52:48,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:52:48,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:52:48,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:52:48,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:52:48,312 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:52:48,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:52:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-03 02:52:48,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:52:48,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008191835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:52:48,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:52:48,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-11-03 02:52:48,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603760907] [2022-11-03 02:52:48,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:52:48,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:52:48,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:52:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:52:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:52:48,341 INFO L87 Difference]: Start difference. First operand 7125 states and 18671 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:48,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:52:48,693 INFO L93 Difference]: Finished difference Result 7076 states and 18567 transitions. [2022-11-03 02:52:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:52:48,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-11-03 02:52:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:52:48,694 INFO L225 Difference]: With dead ends: 7076 [2022-11-03 02:52:48,694 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:52:48,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:52:48,695 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 127 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:52:48,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 87 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:52:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:52:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:52:48,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:52:48,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-11-03 02:52:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:52:48,697 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:52:48,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:52:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:52:48,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:52:48,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2022-11-03 02:52:48,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2022-11-03 02:52:48,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2022-11-03 02:52:48,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2022-11-03 02:52:48,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2022-11-03 02:52:48,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2022-11-03 02:52:48,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2022-11-03 02:52:48,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2022-11-03 02:52:48,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 60 remaining) [2022-11-03 02:52:48,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 60 remaining) [2022-11-03 02:52:48,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2022-11-03 02:52:48,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2022-11-03 02:52:48,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2022-11-03 02:52:48,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2022-11-03 02:52:48,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2022-11-03 02:52:48,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2022-11-03 02:52:48,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2022-11-03 02:52:48,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2022-11-03 02:52:48,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2022-11-03 02:52:48,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2022-11-03 02:52:48,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2022-11-03 02:52:48,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2022-11-03 02:52:48,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2022-11-03 02:52:48,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err13ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2022-11-03 02:52:48,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2022-11-03 02:52:48,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2022-11-03 02:52:48,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2022-11-03 02:52:48,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2022-11-03 02:52:48,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2022-11-03 02:52:48,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2022-11-03 02:52:48,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2022-11-03 02:52:48,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2022-11-03 02:52:48,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2022-11-03 02:52:48,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2022-11-03 02:52:48,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err10ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2022-11-03 02:52:48,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2022-11-03 02:52:48,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (23 of 60 remaining) [2022-11-03 02:52:48,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (22 of 60 remaining) [2022-11-03 02:52:48,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2022-11-03 02:52:48,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2022-11-03 02:52:48,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2022-11-03 02:52:48,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2022-11-03 02:52:48,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2022-11-03 02:52:48,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2022-11-03 02:52:48,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2022-11-03 02:52:48,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2022-11-03 02:52:48,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2022-11-03 02:52:48,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2022-11-03 02:52:48,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err13ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2022-11-03 02:52:48,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2022-11-03 02:52:48,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2022-11-03 02:52:48,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2022-11-03 02:52:48,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2022-11-03 02:52:48,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2022-11-03 02:52:48,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2022-11-03 02:52:48,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2022-11-03 02:52:48,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2022-11-03 02:52:48,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2022-11-03 02:52:48,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2022-11-03 02:52:48,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err10ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2022-11-03 02:52:48,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:52:48,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-03 02:52:48,921 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:52:48,926 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:52:48,926 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:52:48,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:52:48 BasicIcfg [2022-11-03 02:52:48,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:52:48,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:52:48,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:52:48,930 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:52:48,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:51:58" (3/4) ... [2022-11-03 02:52:48,933 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:52:48,940 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-11-03 02:52:48,940 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-11-03 02:52:48,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-03 02:52:48,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 02:52:48,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:52:48,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:52:48,986 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:52:48,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:52:48,987 INFO L158 Benchmark]: Toolchain (without parser) took 52212.25ms. Allocated memory was 100.7MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 67.0MB in the beginning and 10.6GB in the end (delta: -10.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-11-03 02:52:48,988 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:52:48,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.31ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 66.8MB in the beginning and 92.0MB in the end (delta: -25.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:52:48,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.16ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 89.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:52:48,989 INFO L158 Benchmark]: Boogie Preprocessor took 64.34ms. Allocated memory is still 127.9MB. Free memory was 89.1MB in the beginning and 86.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:52:48,989 INFO L158 Benchmark]: RCFGBuilder took 906.92ms. Allocated memory is still 127.9MB. Free memory was 86.7MB in the beginning and 96.8MB in the end (delta: -10.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-11-03 02:52:48,989 INFO L158 Benchmark]: TraceAbstraction took 50429.34ms. Allocated memory was 127.9MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 96.2MB in the beginning and 10.6GB in the end (delta: -10.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-11-03 02:52:48,990 INFO L158 Benchmark]: Witness Printer took 57.28ms. Allocated memory is still 12.4GB. Free memory was 10.6GB in the beginning and 10.6GB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:52:48,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.31ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 66.8MB in the beginning and 92.0MB in the end (delta: -25.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.16ms. Allocated memory is still 127.9MB. Free memory was 92.0MB in the beginning and 89.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.34ms. Allocated memory is still 127.9MB. Free memory was 89.1MB in the beginning and 86.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 906.92ms. Allocated memory is still 127.9MB. Free memory was 86.7MB in the beginning and 96.8MB in the end (delta: -10.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * TraceAbstraction took 50429.34ms. Allocated memory was 127.9MB in the beginning and 12.4GB in the end (delta: 12.2GB). Free memory was 96.2MB in the beginning and 10.6GB in the end (delta: -10.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 57.28ms. Allocated memory is still 12.4GB. Free memory was 10.6GB in the beginning and 10.6GB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.2s, 292 PlacesBefore, 111 PlacesAfterwards, 298 TransitionsBefore, 113 TransitionsAfterwards, 23022 CoEnabledTransitionPairs, 17 FixpointIterations, 99 TrivialSequentialCompositions, 224 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 4 ChoiceCompositions, 344 TotalNumberOfCompositions, 163985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 77159, positive: 74800, positive conditional: 0, positive unconditional: 74800, negative: 2359, negative conditional: 0, negative unconditional: 2359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19512, positive: 19313, positive conditional: 0, positive unconditional: 19313, negative: 199, negative conditional: 0, negative unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19512, positive: 18578, positive conditional: 0, positive unconditional: 18578, negative: 934, negative conditional: 0, negative unconditional: 934, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 934, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 196, negative conditional: 0, negative unconditional: 196, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7958, positive: 671, positive conditional: 0, positive unconditional: 671, negative: 400, negative conditional: 0, negative unconditional: 400, unknown: 6887, unknown conditional: 0, unknown unconditional: 6887] ], Cache Queries: [ total: 77159, positive: 55487, positive conditional: 0, positive unconditional: 55487, negative: 2160, negative conditional: 0, negative unconditional: 2160, unknown: 19512, unknown conditional: 0, unknown unconditional: 19512] , Statistics on independence cache: Total cache size (in pairs): 3115, Positive cache size: 3007, Positive conditional cache size: 0, Positive unconditional cache size: 3007, Negative cache size: 108, Negative conditional cache size: 0, Negative unconditional cache size: 108 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 692]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 762]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 765]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 766]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 732]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 462 locations, 60 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 23, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2320 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2320 mSDsluCounter, 2309 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2773 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4274 IncrementalHoareTripleChecker+Invalid, 4389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 1239 mSDtfsCounter, 4274 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54567occurred in iteration=18, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 64939 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 452 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 448 ConstructedInterpolants, 0 QuantifiedInterpolants, 1474 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1587 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 37/74 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:52:49,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01b08199-75ca-48f0-a83a-df5ac98dcd6c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE