./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- 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-8393723 [2022-11-18 19:36:43,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:36:43,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:36:44,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:36:44,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:36:44,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:36:44,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:36:44,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:36:44,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:36:44,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:36:44,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:36:44,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:36:44,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:36:44,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:36:44,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:36:44,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:36:44,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:36:44,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:36:44,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:36:44,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:36:44,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:36:44,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:36:44,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:36:44,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:36:44,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:36:44,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:36:44,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:36:44,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:36:44,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:36:44,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:36:44,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:36:44,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:36:44,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:36:44,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:36:44,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:36:44,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:36:44,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:36:44,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:36:44,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:36:44,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:36:44,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:36:44,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:36:44,128 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:36:44,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:36:44,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:36:44,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:36:44,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:36:44,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:36:44,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:36:44,135 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:36:44,135 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:36:44,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:36:44,136 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:36:44,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:36:44,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:36:44,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:36:44,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:36:44,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:36:44,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:36:44,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:36:44,138 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:36:44,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:36:44,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:36:44,138 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:36:44,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:36:44,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:36:44,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:36:44,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:36:44,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:36:44,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:36:44,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:36:44,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:36:44,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:36:44,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:36:44,142 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:36:44,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:36:44,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:36:44,143 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_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2022-11-18 19:36:44,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:36:44,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:36:44,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:36:44,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:36:44,470 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:36:44,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-18 19:36:44,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/data/25a055cd1/f8d1e06288c446c9933bb8f21c1254a7/FLAG60b60a1ef [2022-11-18 19:36:45,150 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:36:45,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2022-11-18 19:36:45,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/data/25a055cd1/f8d1e06288c446c9933bb8f21c1254a7/FLAG60b60a1ef [2022-11-18 19:36:45,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/data/25a055cd1/f8d1e06288c446c9933bb8f21c1254a7 [2022-11-18 19:36:45,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:36:45,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:36:45,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:36:45,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:36:45,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:36:45,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:45,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1383d3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:45, skipping insertion in model container [2022-11-18 19:36:45,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:36:45" (1/1) ... [2022-11-18 19:36:45,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:36:45,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:36:46,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:36:46,218 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:36:46,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:36:46,369 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:36:46,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46 WrapperNode [2022-11-18 19:36:46,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:36:46,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:36:46,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:36:46,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:36:46,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,424 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2022-11-18 19:36:46,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:36:46,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:36:46,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:36:46,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:36:46,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:36:46,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:36:46,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:36:46,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:36:46,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (1/1) ... [2022-11-18 19:36:46,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:36:46,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:36:46,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:36:46,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:36:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:36:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:36:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:36:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:36:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:36:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:36:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:36:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:36:46,539 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:36:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:36:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:36:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:36:46,541 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:36:46,686 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:36:46,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:36:46,996 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:36:47,003 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:36:47,003 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:36:47,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:36:47 BoogieIcfgContainer [2022-11-18 19:36:47,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:36:47,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:36:47,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:36:47,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:36:47,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:36:45" (1/3) ... [2022-11-18 19:36:47,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6740292e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:36:47, skipping insertion in model container [2022-11-18 19:36:47,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:36:46" (2/3) ... [2022-11-18 19:36:47,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6740292e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:36:47, skipping insertion in model container [2022-11-18 19:36:47,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:36:47" (3/3) ... [2022-11-18 19:36:47,014 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2022-11-18 19:36:47,023 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:36:47,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:36:47,033 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-18 19:36:47,033 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:36:47,102 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:36:47,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 199 flow [2022-11-18 19:36:47,198 INFO L130 PetriNetUnfolder]: 0/96 cut-off events. [2022-11-18 19:36:47,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:36:47,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-18 19:36:47,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 97 transitions, 199 flow [2022-11-18 19:36:47,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 96 transitions, 195 flow [2022-11-18 19:36:47,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:36:47,226 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=PETRI_NET, 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;@6c50924e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:36:47,226 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-18 19:36:47,233 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-18 19:36:47,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:36:47,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:47,234 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-18 19:36:47,235 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:47,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1065705281, now seen corresponding path program 1 times [2022-11-18 19:36:47,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:47,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192461105] [2022-11-18 19:36:47,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:47,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:47,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:47,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192461105] [2022-11-18 19:36:47,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192461105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:47,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:47,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:36:47,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562980221] [2022-11-18 19:36:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:47,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:36:47,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:36:47,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:36:47,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 97 [2022-11-18 19:36:47,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 96 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:47,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:47,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 97 [2022-11-18 19:36:47,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:47,843 INFO L130 PetriNetUnfolder]: 18/272 cut-off events. [2022-11-18 19:36:47,844 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:36:47,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 272 events. 18/272 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1101 event pairs, 18 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 284. Up to 53 conditions per place. [2022-11-18 19:36:47,850 INFO L137 encePairwiseOnDemand]: 94/97 looper letters, 16 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2022-11-18 19:36:47,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 95 transitions, 229 flow [2022-11-18 19:36:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:36:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:36:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2022-11-18 19:36:47,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8694158075601375 [2022-11-18 19:36:47,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2022-11-18 19:36:47,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2022-11-18 19:36:47,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:47,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2022-11-18 19:36:47,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:47,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:47,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:47,898 INFO L175 Difference]: Start difference. First operand has 100 places, 96 transitions, 195 flow. Second operand 3 states and 253 transitions. [2022-11-18 19:36:47,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 95 transitions, 229 flow [2022-11-18 19:36:47,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 95 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:36:47,939 INFO L231 Difference]: Finished difference. Result has 100 places, 95 transitions, 196 flow [2022-11-18 19:36:47,941 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=100, PETRI_TRANSITIONS=95} [2022-11-18 19:36:47,945 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 0 predicate places. [2022-11-18 19:36:47,945 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 95 transitions, 196 flow [2022-11-18 19:36:47,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:47,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:47,946 INFO L209 CegarLoopForPetriNet]: 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] [2022-11-18 19:36:47,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:36:47,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:47,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:47,949 INFO L85 PathProgramCache]: Analyzing trace with hash 866624769, now seen corresponding path program 1 times [2022-11-18 19:36:47,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:47,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061297303] [2022-11-18 19:36:47,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:47,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:48,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061297303] [2022-11-18 19:36:48,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061297303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:48,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:48,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:36:48,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712380517] [2022-11-18 19:36:48,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:48,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:36:48,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:48,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:36:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:36:48,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 97 [2022-11-18 19:36:48,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:48,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:48,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 97 [2022-11-18 19:36:48,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:48,102 INFO L130 PetriNetUnfolder]: 8/212 cut-off events. [2022-11-18 19:36:48,107 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:36:48,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 212 events. 8/212 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 702 event pairs, 8 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 214. Up to 25 conditions per place. [2022-11-18 19:36:48,112 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 10 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2022-11-18 19:36:48,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 91 transitions, 210 flow [2022-11-18 19:36:48,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:36:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:36:48,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2022-11-18 19:36:48,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8865979381443299 [2022-11-18 19:36:48,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2022-11-18 19:36:48,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2022-11-18 19:36:48,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:48,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2022-11-18 19:36:48,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:48,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:48,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:48,122 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 196 flow. Second operand 3 states and 258 transitions. [2022-11-18 19:36:48,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 91 transitions, 210 flow [2022-11-18 19:36:48,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 91 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:36:48,127 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 186 flow [2022-11-18 19:36:48,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2022-11-18 19:36:48,128 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -4 predicate places. [2022-11-18 19:36:48,128 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 186 flow [2022-11-18 19:36:48,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:48,129 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:48,130 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:48,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:36:48,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash -285435515, now seen corresponding path program 1 times [2022-11-18 19:36:48,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:48,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301862386] [2022-11-18 19:36:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:48,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:48,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:48,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301862386] [2022-11-18 19:36:48,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301862386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:48,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:48,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:36:48,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251418460] [2022-11-18 19:36:48,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:48,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:36:48,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:48,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:36:48,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:36:48,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 97 [2022-11-18 19:36:48,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:48,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:48,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 97 [2022-11-18 19:36:48,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:49,415 INFO L130 PetriNetUnfolder]: 302/916 cut-off events. [2022-11-18 19:36:49,416 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:36:49,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 916 events. 302/916 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5131 event pairs, 143 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 1533. Up to 452 conditions per place. [2022-11-18 19:36:49,424 INFO L137 encePairwiseOnDemand]: 81/97 looper letters, 64 selfloop transitions, 41 changer transitions 0/163 dead transitions. [2022-11-18 19:36:49,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 163 transitions, 540 flow [2022-11-18 19:36:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:36:49,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:36:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 490 transitions. [2022-11-18 19:36:49,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8419243986254296 [2022-11-18 19:36:49,427 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 490 transitions. [2022-11-18 19:36:49,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 490 transitions. [2022-11-18 19:36:49,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:49,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 490 transitions. [2022-11-18 19:36:49,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:49,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:49,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:49,433 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 186 flow. Second operand 6 states and 490 transitions. [2022-11-18 19:36:49,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 163 transitions, 540 flow [2022-11-18 19:36:49,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 163 transitions, 539 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:36:49,438 INFO L231 Difference]: Finished difference. Result has 104 places, 133 transitions, 443 flow [2022-11-18 19:36:49,439 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=443, PETRI_PLACES=104, PETRI_TRANSITIONS=133} [2022-11-18 19:36:49,440 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2022-11-18 19:36:49,440 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 133 transitions, 443 flow [2022-11-18 19:36:49,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:49,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:49,441 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:49,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:36:49,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:49,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1667848095, now seen corresponding path program 1 times [2022-11-18 19:36:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:49,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629108939] [2022-11-18 19:36:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:49,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:49,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629108939] [2022-11-18 19:36:49,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629108939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:49,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:49,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:36:49,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970415877] [2022-11-18 19:36:49,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:49,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:36:49,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:49,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:36:49,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:36:49,782 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 97 [2022-11-18 19:36:49,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 133 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:49,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:49,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 97 [2022-11-18 19:36:49,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:50,624 INFO L130 PetriNetUnfolder]: 487/1481 cut-off events. [2022-11-18 19:36:50,624 INFO L131 PetriNetUnfolder]: For 428/442 co-relation queries the response was YES. [2022-11-18 19:36:50,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3446 conditions, 1481 events. 487/1481 cut-off events. For 428/442 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9980 event pairs, 40 based on Foata normal form. 24/1422 useless extension candidates. Maximal degree in co-relation 3410. Up to 430 conditions per place. [2022-11-18 19:36:50,637 INFO L137 encePairwiseOnDemand]: 86/97 looper letters, 151 selfloop transitions, 32 changer transitions 0/247 dead transitions. [2022-11-18 19:36:50,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 247 transitions, 1212 flow [2022-11-18 19:36:50,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:36:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:36:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 524 transitions. [2022-11-18 19:36:50,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9003436426116839 [2022-11-18 19:36:50,640 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 524 transitions. [2022-11-18 19:36:50,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 524 transitions. [2022-11-18 19:36:50,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:50,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 524 transitions. [2022-11-18 19:36:50,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.33333333333333) internal successors, (524), 6 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,645 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,645 INFO L175 Difference]: Start difference. First operand has 104 places, 133 transitions, 443 flow. Second operand 6 states and 524 transitions. [2022-11-18 19:36:50,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 247 transitions, 1212 flow [2022-11-18 19:36:50,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 247 transitions, 1212 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:36:50,656 INFO L231 Difference]: Finished difference. Result has 114 places, 163 transitions, 745 flow [2022-11-18 19:36:50,657 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=745, PETRI_PLACES=114, PETRI_TRANSITIONS=163} [2022-11-18 19:36:50,658 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 14 predicate places. [2022-11-18 19:36:50,658 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 163 transitions, 745 flow [2022-11-18 19:36:50,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,659 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:50,659 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:50,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:36:50,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:50,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1266553114, now seen corresponding path program 1 times [2022-11-18 19:36:50,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:50,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327521638] [2022-11-18 19:36:50,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:50,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:50,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:50,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327521638] [2022-11-18 19:36:50,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327521638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:50,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:50,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:36:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913105813] [2022-11-18 19:36:50,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:50,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:36:50,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:50,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:36:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:36:50,771 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 97 [2022-11-18 19:36:50,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 163 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:50,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 97 [2022-11-18 19:36:50,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:50,841 INFO L130 PetriNetUnfolder]: 39/284 cut-off events. [2022-11-18 19:36:50,841 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 19:36:50,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 284 events. 39/284 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 986 event pairs, 4 based on Foata normal form. 2/272 useless extension candidates. Maximal degree in co-relation 487. Up to 64 conditions per place. [2022-11-18 19:36:50,844 INFO L137 encePairwiseOnDemand]: 93/97 looper letters, 7 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2022-11-18 19:36:50,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 389 flow [2022-11-18 19:36:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:36:50,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:36:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2022-11-18 19:36:50,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9312714776632303 [2022-11-18 19:36:50,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2022-11-18 19:36:50,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2022-11-18 19:36:50,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:50,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2022-11-18 19:36:50,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,850 INFO L175 Difference]: Start difference. First operand has 114 places, 163 transitions, 745 flow. Second operand 3 states and 271 transitions. [2022-11-18 19:36:50,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 389 flow [2022-11-18 19:36:50,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 112 transitions, 347 flow, removed 13 selfloop flow, removed 8 redundant places. [2022-11-18 19:36:50,856 INFO L231 Difference]: Finished difference. Result has 107 places, 112 transitions, 333 flow [2022-11-18 19:36:50,856 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=107, PETRI_TRANSITIONS=112} [2022-11-18 19:36:50,857 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 7 predicate places. [2022-11-18 19:36:50,858 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 112 transitions, 333 flow [2022-11-18 19:36:50,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:50,858 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:50,859 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:36:50,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1861706891, now seen corresponding path program 1 times [2022-11-18 19:36:50,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:50,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964827719] [2022-11-18 19:36:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:50,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:51,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:51,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:51,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964827719] [2022-11-18 19:36:51,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964827719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:51,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:51,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:36:51,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493480638] [2022-11-18 19:36:51,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:51,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:36:51,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:51,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:36:51,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:36:51,291 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 97 [2022-11-18 19:36:51,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 112 transitions, 333 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:51,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 97 [2022-11-18 19:36:51,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:51,550 INFO L130 PetriNetUnfolder]: 148/556 cut-off events. [2022-11-18 19:36:51,550 INFO L131 PetriNetUnfolder]: For 83/83 co-relation queries the response was YES. [2022-11-18 19:36:51,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 556 events. 148/556 cut-off events. For 83/83 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2536 event pairs, 44 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 1142. Up to 301 conditions per place. [2022-11-18 19:36:51,554 INFO L137 encePairwiseOnDemand]: 86/97 looper letters, 56 selfloop transitions, 22 changer transitions 4/141 dead transitions. [2022-11-18 19:36:51,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 141 transitions, 587 flow [2022-11-18 19:36:51,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:36:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:36:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2022-11-18 19:36:51,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7663230240549829 [2022-11-18 19:36:51,556 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2022-11-18 19:36:51,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2022-11-18 19:36:51,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:51,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2022-11-18 19:36:51,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,560 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,561 INFO L175 Difference]: Start difference. First operand has 107 places, 112 transitions, 333 flow. Second operand 6 states and 446 transitions. [2022-11-18 19:36:51,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 141 transitions, 587 flow [2022-11-18 19:36:51,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 141 transitions, 583 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:36:51,566 INFO L231 Difference]: Finished difference. Result has 116 places, 133 transitions, 511 flow [2022-11-18 19:36:51,566 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=511, PETRI_PLACES=116, PETRI_TRANSITIONS=133} [2022-11-18 19:36:51,567 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 16 predicate places. [2022-11-18 19:36:51,567 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 133 transitions, 511 flow [2022-11-18 19:36:51,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:51,568 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:51,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:36:51,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash -865360762, now seen corresponding path program 1 times [2022-11-18 19:36:51,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:51,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418975558] [2022-11-18 19:36:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:51,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:51,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:51,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418975558] [2022-11-18 19:36:51,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418975558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:51,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:51,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:36:51,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113722830] [2022-11-18 19:36:51,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:51,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:36:51,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:51,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:36:51,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:36:51,942 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 97 [2022-11-18 19:36:51,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 133 transitions, 511 flow. Second operand has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:51,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:51,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 97 [2022-11-18 19:36:51,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:52,336 INFO L130 PetriNetUnfolder]: 184/762 cut-off events. [2022-11-18 19:36:52,337 INFO L131 PetriNetUnfolder]: For 327/354 co-relation queries the response was YES. [2022-11-18 19:36:52,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1879 conditions, 762 events. 184/762 cut-off events. For 327/354 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4295 event pairs, 21 based on Foata normal form. 0/737 useless extension candidates. Maximal degree in co-relation 1836. Up to 304 conditions per place. [2022-11-18 19:36:52,343 INFO L137 encePairwiseOnDemand]: 83/97 looper letters, 74 selfloop transitions, 51 changer transitions 10/199 dead transitions. [2022-11-18 19:36:52,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 199 transitions, 1108 flow [2022-11-18 19:36:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:36:52,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:36:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 489 transitions. [2022-11-18 19:36:52,346 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8402061855670103 [2022-11-18 19:36:52,346 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 489 transitions. [2022-11-18 19:36:52,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 489 transitions. [2022-11-18 19:36:52,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:52,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 489 transitions. [2022-11-18 19:36:52,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:52,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:52,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 97.0) internal successors, (679), 7 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:52,352 INFO L175 Difference]: Start difference. First operand has 116 places, 133 transitions, 511 flow. Second operand 6 states and 489 transitions. [2022-11-18 19:36:52,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 199 transitions, 1108 flow [2022-11-18 19:36:52,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 199 transitions, 1070 flow, removed 19 selfloop flow, removed 0 redundant places. [2022-11-18 19:36:52,360 INFO L231 Difference]: Finished difference. Result has 126 places, 174 transitions, 927 flow [2022-11-18 19:36:52,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=927, PETRI_PLACES=126, PETRI_TRANSITIONS=174} [2022-11-18 19:36:52,361 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2022-11-18 19:36:52,362 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 174 transitions, 927 flow [2022-11-18 19:36:52,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.5) internal successors, (423), 6 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:52,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:52,362 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:52,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:36:52,363 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:52,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:52,363 INFO L85 PathProgramCache]: Analyzing trace with hash -611001653, now seen corresponding path program 1 times [2022-11-18 19:36:52,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:52,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973443362] [2022-11-18 19:36:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:52,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:53,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:53,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:53,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973443362] [2022-11-18 19:36:53,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973443362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:53,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:53,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:36:53,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933677189] [2022-11-18 19:36:53,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:53,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:36:53,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:53,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:36:53,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:36:53,347 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 97 [2022-11-18 19:36:53,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 174 transitions, 927 flow. Second operand has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:53,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:53,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 97 [2022-11-18 19:36:53,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:53,789 INFO L130 PetriNetUnfolder]: 198/750 cut-off events. [2022-11-18 19:36:53,789 INFO L131 PetriNetUnfolder]: For 582/586 co-relation queries the response was YES. [2022-11-18 19:36:53,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 750 events. 198/750 cut-off events. For 582/586 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4151 event pairs, 35 based on Foata normal form. 11/756 useless extension candidates. Maximal degree in co-relation 2258. Up to 297 conditions per place. [2022-11-18 19:36:53,797 INFO L137 encePairwiseOnDemand]: 87/97 looper letters, 121 selfloop transitions, 29 changer transitions 8/212 dead transitions. [2022-11-18 19:36:53,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 212 transitions, 1511 flow [2022-11-18 19:36:53,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:36:53,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:36:53,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 596 transitions. [2022-11-18 19:36:53,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6827033218785796 [2022-11-18 19:36:53,800 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 596 transitions. [2022-11-18 19:36:53,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 596 transitions. [2022-11-18 19:36:53,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:53,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 596 transitions. [2022-11-18 19:36:53,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 66.22222222222223) internal successors, (596), 9 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:53,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:53,807 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:53,808 INFO L175 Difference]: Start difference. First operand has 126 places, 174 transitions, 927 flow. Second operand 9 states and 596 transitions. [2022-11-18 19:36:53,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 212 transitions, 1511 flow [2022-11-18 19:36:53,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 212 transitions, 1459 flow, removed 18 selfloop flow, removed 2 redundant places. [2022-11-18 19:36:53,829 INFO L231 Difference]: Finished difference. Result has 131 places, 173 transitions, 929 flow [2022-11-18 19:36:53,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=929, PETRI_PLACES=131, PETRI_TRANSITIONS=173} [2022-11-18 19:36:53,834 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 31 predicate places. [2022-11-18 19:36:53,834 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 173 transitions, 929 flow [2022-11-18 19:36:53,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 61.3) internal successors, (613), 10 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:53,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:53,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:53,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:36:53,835 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:53,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:53,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1848770840, now seen corresponding path program 1 times [2022-11-18 19:36:53,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:53,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341495446] [2022-11-18 19:36:53,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:53,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:36:54,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:54,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341495446] [2022-11-18 19:36:54,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341495446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:54,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:54,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:36:54,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001744057] [2022-11-18 19:36:54,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:54,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:36:54,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:54,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:36:54,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:36:54,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 97 [2022-11-18 19:36:54,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 173 transitions, 929 flow. Second operand has 10 states, 10 states have (on average 63.2) internal successors, (632), 10 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:54,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:54,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 97 [2022-11-18 19:36:54,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:55,289 INFO L130 PetriNetUnfolder]: 223/843 cut-off events. [2022-11-18 19:36:55,289 INFO L131 PetriNetUnfolder]: For 830/834 co-relation queries the response was YES. [2022-11-18 19:36:55,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2659 conditions, 843 events. 223/843 cut-off events. For 830/834 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4970 event pairs, 24 based on Foata normal form. 19/861 useless extension candidates. Maximal degree in co-relation 2605. Up to 164 conditions per place. [2022-11-18 19:36:55,297 INFO L137 encePairwiseOnDemand]: 82/97 looper letters, 132 selfloop transitions, 58 changer transitions 4/251 dead transitions. [2022-11-18 19:36:55,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 251 transitions, 1827 flow [2022-11-18 19:36:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:36:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:36:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 652 transitions. [2022-11-18 19:36:55,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7468499427262314 [2022-11-18 19:36:55,301 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 652 transitions. [2022-11-18 19:36:55,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 652 transitions. [2022-11-18 19:36:55,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:55,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 652 transitions. [2022-11-18 19:36:55,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.44444444444444) internal successors, (652), 9 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:55,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:55,307 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 97.0) internal successors, (970), 10 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:55,307 INFO L175 Difference]: Start difference. First operand has 131 places, 173 transitions, 929 flow. Second operand 9 states and 652 transitions. [2022-11-18 19:36:55,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 251 transitions, 1827 flow [2022-11-18 19:36:55,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 251 transitions, 1729 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-18 19:36:55,343 INFO L231 Difference]: Finished difference. Result has 135 places, 192 transitions, 1237 flow [2022-11-18 19:36:55,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1237, PETRI_PLACES=135, PETRI_TRANSITIONS=192} [2022-11-18 19:36:55,344 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 35 predicate places. [2022-11-18 19:36:55,344 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 192 transitions, 1237 flow [2022-11-18 19:36:55,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.2) internal successors, (632), 10 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:36:55,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:55,345 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:55,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:36:55,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-18 19:36:55,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:55,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1205163072, now seen corresponding path program 1 times [2022-11-18 19:36:55,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:55,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029457185] [2022-11-18 19:36:55,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:55,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:55,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:36:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:36:55,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:36:55,413 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:36:55,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-18 19:36:55,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-18 19:36:55,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-18 19:36:55,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-18 19:36:55,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-18 19:36:55,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2022-11-18 19:36:55,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-18 19:36:55,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-18 19:36:55,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-18 19:36:55,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-18 19:36:55,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-18 19:36:55,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-18 19:36:55,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-18 19:36:55,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-18 19:36:55,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:36:55,420 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:55,427 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:36:55,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:36:55,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:36:55 BasicIcfg [2022-11-18 19:36:55,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:36:55,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:36:55,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:36:55,476 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:36:55,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:36:47" (3/4) ... [2022-11-18 19:36:55,480 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:36:55,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:36:55,481 INFO L158 Benchmark]: Toolchain (without parser) took 10083.82ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 69.6MB in the beginning and 155.8MB in the end (delta: -86.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-18 19:36:55,482 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:36:55,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 967.67ms. Allocated memory is still 111.1MB. Free memory was 69.5MB in the beginning and 58.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:36:55,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.38ms. Allocated memory is still 111.1MB. Free memory was 58.9MB in the beginning and 56.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:36:55,483 INFO L158 Benchmark]: Boogie Preprocessor took 30.01ms. Allocated memory is still 111.1MB. Free memory was 56.5MB in the beginning and 54.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:36:55,484 INFO L158 Benchmark]: RCFGBuilder took 549.78ms. Allocated memory is still 111.1MB. Free memory was 54.7MB in the beginning and 84.7MB in the end (delta: -30.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-18 19:36:55,484 INFO L158 Benchmark]: TraceAbstraction took 8467.84ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 84.1MB in the beginning and 155.8MB in the end (delta: -71.6MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2022-11-18 19:36:55,484 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 209.7MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:36:55,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 88.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 967.67ms. Allocated memory is still 111.1MB. Free memory was 69.5MB in the beginning and 58.9MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.38ms. Allocated memory is still 111.1MB. Free memory was 58.9MB in the beginning and 56.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.01ms. Allocated memory is still 111.1MB. Free memory was 56.5MB in the beginning and 54.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.78ms. Allocated memory is still 111.1MB. Free memory was 54.7MB in the beginning and 84.7MB in the end (delta: -30.1MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8467.84ms. Allocated memory was 111.1MB in the beginning and 209.7MB in the end (delta: 98.6MB). Free memory was 84.1MB in the beginning and 155.8MB in the end (delta: -71.6MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 209.7MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; VAL [d={0:0}] [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [d={0:0}, m={1:0}] [L1237] 0 pthread_t id; VAL [d={0:0}, id={9:0}, m={1:0}] [L1238] 0 data *z; VAL [d={0:0}, id={9:0}, m={1:0}] [L1239] 0 d = malloc(sizeof(data)) VAL [d={-2:0}, d = malloc(sizeof(data))=29, id={9:0}, m={1:0}, malloc(sizeof(data))={-2:0}] [L1240] 0 z = d VAL [d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x=25, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x=25, id={9:0}, m={1:0}, z={-2:0}] [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=26, m={1:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->x = 3=26, id={9:0}, m={1:0}, z={-2:0}, z->y=27] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d={-2:0}, d->y = 8=28, id={9:0}, m={1:0}, z={-2:0}, z->y=27] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 227 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 227 mSDsluCounter, 166 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 160 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1495 IncrementalHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 160 mSolverCounterUnsat, 137 mSDtfsCounter, 1495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1237occurred in iteration=9, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 496 NumberOfCodeBlocks, 496 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 1747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:36:55,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e31cfab-edb6-4b40-8c30-c42ac5382f7d/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE