./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8 --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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --- 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-e04fb08 [2022-11-16 12:30:40,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:30:40,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:30:41,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:30:41,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:30:41,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:30:41,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:30:41,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:30:41,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:30:41,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:30:41,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:30:41,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:30:41,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:30:41,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:30:41,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:30:41,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:30:41,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:30:41,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:30:41,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:30:41,057 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:30:41,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:30:41,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:30:41,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:30:41,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:30:41,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:30:41,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:30:41,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:30:41,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:30:41,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:30:41,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:30:41,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:30:41,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:30:41,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:30:41,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:30:41,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:30:41,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:30:41,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:30:41,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:30:41,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:30:41,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:30:41,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:30:41,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:30:41,133 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:30:41,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:30:41,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:30:41,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:30:41,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:30:41,135 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:30:41,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:30:41,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:30:41,136 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:30:41,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:30:41,138 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:30:41,138 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:30:41,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:30:41,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:30:41,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:30:41,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:30:41,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:30:41,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:30:41,139 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:30:41,140 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:30:41,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:30:41,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:30:41,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:30:41,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:30:41,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:30:41,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:30:41,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:30:41,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:30:41,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:30:41,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:30:41,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:30:41,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:30:41,144 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:30:41,144 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:30:41,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:30:41,145 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_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd [2022-11-16 12:30:41,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:30:41,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:30:41,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:30:41,471 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:30:41,472 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:30:41,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2022-11-16 12:30:41,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/data/a612a0e4f/250256406aa247b4ba4a1f3b0466fdc9/FLAG4f08cf7c5 [2022-11-16 12:30:42,132 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:30:42,132 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2022-11-16 12:30:42,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/data/a612a0e4f/250256406aa247b4ba4a1f3b0466fdc9/FLAG4f08cf7c5 [2022-11-16 12:30:42,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/data/a612a0e4f/250256406aa247b4ba4a1f3b0466fdc9 [2022-11-16 12:30:42,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:30:42,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:30:42,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:30:42,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:30:42,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:30:42,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:42" (1/1) ... [2022-11-16 12:30:42,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347c2df2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:42, skipping insertion in model container [2022-11-16 12:30:42,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:30:42" (1/1) ... [2022-11-16 12:30:42,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:30:42,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:30:43,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:30:43,150 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:30:43,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:30:43,238 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:30:43,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43 WrapperNode [2022-11-16 12:30:43,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:30:43,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:30:43,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:30:43,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:30:43,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,307 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-16 12:30:43,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:30:43,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:30:43,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:30:43,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:30:43,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:30:43,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:30:43,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:30:43,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:30:43,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (1/1) ... [2022-11-16 12:30:43,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:30:43,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:43,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:30:43,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:30:43,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:30:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:30:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:30:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:30:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:30:43,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:30:43,452 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:30:43,452 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:30:43,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:30:43,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:30:43,456 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:30:43,656 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:30:43,658 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:30:43,948 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:30:43,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:30:43,968 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:30:43,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:43 BoogieIcfgContainer [2022-11-16 12:30:43,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:30:43,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:30:43,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:30:43,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:30:43,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:30:42" (1/3) ... [2022-11-16 12:30:43,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629b37c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:43, skipping insertion in model container [2022-11-16 12:30:43,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:30:43" (2/3) ... [2022-11-16 12:30:43,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629b37c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:43, skipping insertion in model container [2022-11-16 12:30:43,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:43" (3/3) ... [2022-11-16 12:30:43,984 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2022-11-16 12:30:43,994 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:30:44,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:30:44,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 12:30:44,006 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:30:44,171 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:30:44,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2022-11-16 12:30:44,319 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-11-16 12:30:44,319 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:30:44,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-16 12:30:44,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 217 flow [2022-11-16 12:30:44,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 213 flow [2022-11-16 12:30:44,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:30:44,364 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;@65caa6b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:30:44,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 12:30:44,393 INFO L130 PetriNetUnfolder]: 4/55 cut-off events. [2022-11-16 12:30:44,394 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:30:44,394 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:44,395 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] [2022-11-16 12:30:44,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:44,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1316832337, now seen corresponding path program 1 times [2022-11-16 12:30:44,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:44,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076060134] [2022-11-16 12:30:44,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:44,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:44,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:44,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076060134] [2022-11-16 12:30:44,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076060134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:44,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:44,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:30:44,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472154384] [2022-11-16 12:30:44,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:44,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:30:44,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:44,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:30:44,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:30:44,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 106 [2022-11-16 12:30:44,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 213 flow. Second operand has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:44,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:44,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 106 [2022-11-16 12:30:44,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:44,775 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-16 12:30:44,776 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:30:44,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 102 events. 1/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-16 12:30:44,778 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 1 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2022-11-16 12:30:44,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 209 flow [2022-11-16 12:30:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:30:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:30:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2022-11-16 12:30:44,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9811320754716981 [2022-11-16 12:30:44,796 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2022-11-16 12:30:44,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2022-11-16 12:30:44,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:44,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2022-11-16 12:30:44,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:44,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:44,821 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:44,823 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 213 flow. Second operand 2 states and 208 transitions. [2022-11-16 12:30:44,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 209 flow [2022-11-16 12:30:44,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:30:44,834 INFO L231 Difference]: Finished difference. Result has 105 places, 101 transitions, 204 flow [2022-11-16 12:30:44,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=105, PETRI_TRANSITIONS=101} [2022-11-16 12:30:44,843 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 0 predicate places. [2022-11-16 12:30:44,843 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 101 transitions, 204 flow [2022-11-16 12:30:44,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:44,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:44,844 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] [2022-11-16 12:30:44,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:30:44,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:44,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:44,845 INFO L85 PathProgramCache]: Analyzing trace with hash 900925616, now seen corresponding path program 1 times [2022-11-16 12:30:44,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:44,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485709066] [2022-11-16 12:30:44,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:44,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:45,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:45,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485709066] [2022-11-16 12:30:45,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485709066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:45,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:45,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:30:45,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513674304] [2022-11-16 12:30:45,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:45,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:30:45,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:45,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:30:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:45,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2022-11-16 12:30:45,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 101 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:45,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2022-11-16 12:30:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:45,090 INFO L130 PetriNetUnfolder]: 1/105 cut-off events. [2022-11-16 12:30:45,090 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:30:45,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 105 events. 1/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 119. Up to 9 conditions per place. [2022-11-16 12:30:45,091 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 10 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-16 12:30:45,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 236 flow [2022-11-16 12:30:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:30:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:30:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2022-11-16 12:30:45,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371069182389937 [2022-11-16 12:30:45,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2022-11-16 12:30:45,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2022-11-16 12:30:45,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:45,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2022-11-16 12:30:45,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,099 INFO L175 Difference]: Start difference. First operand has 105 places, 101 transitions, 204 flow. Second operand 3 states and 298 transitions. [2022-11-16 12:30:45,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 236 flow [2022-11-16 12:30:45,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 105 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:30:45,102 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 216 flow [2022-11-16 12:30:45,102 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2022-11-16 12:30:45,103 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2022-11-16 12:30:45,103 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 216 flow [2022-11-16 12:30:45,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:45,104 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] [2022-11-16 12:30:45,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:30:45,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 438260885, now seen corresponding path program 1 times [2022-11-16 12:30:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:45,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828365910] [2022-11-16 12:30:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:45,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:45,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:45,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:45,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828365910] [2022-11-16 12:30:45,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828365910] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:45,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219386334] [2022-11-16 12:30:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:45,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:45,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:45,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:30:45,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:30:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:45,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:30:45,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:45,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:45,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:45,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219386334] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:45,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:30:45,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:30:45,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614151202] [2022-11-16 12:30:45,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:45,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:30:45,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:45,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:30:45,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:30:45,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-16 12:30:45,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:45,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-16 12:30:45,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:45,667 INFO L130 PetriNetUnfolder]: 1/112 cut-off events. [2022-11-16 12:30:45,667 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:30:45,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 112 events. 1/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 140. Up to 6 conditions per place. [2022-11-16 12:30:45,668 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2022-11-16 12:30:45,669 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 278 flow [2022-11-16 12:30:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:30:45,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:30:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 868 transitions. [2022-11-16 12:30:45,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.909853249475891 [2022-11-16 12:30:45,674 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 868 transitions. [2022-11-16 12:30:45,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 868 transitions. [2022-11-16 12:30:45,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:45,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 868 transitions. [2022-11-16 12:30:45,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.44444444444444) internal successors, (868), 9 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,682 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,683 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 216 flow. Second operand 9 states and 868 transitions. [2022-11-16 12:30:45,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 278 flow [2022-11-16 12:30:45,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:30:45,686 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 264 flow [2022-11-16 12:30:45,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2022-11-16 12:30:45,687 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2022-11-16 12:30:45,688 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 264 flow [2022-11-16 12:30:45,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:45,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:45,689 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:45,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:45,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-16 12:30:45,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash 432939381, now seen corresponding path program 2 times [2022-11-16 12:30:45,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:45,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941314466] [2022-11-16 12:30:45,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:45,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:46,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:46,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941314466] [2022-11-16 12:30:46,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941314466] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:46,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758227415] [2022-11-16 12:30:46,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:46,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:46,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:46,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:30:46,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:30:46,307 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:30:46,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:46,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:30:46,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:46,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 12:30:46,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 12:30:46,461 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:30:46,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 12:30:46,526 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:30:46,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 12:30:46,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:30:46,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:46,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758227415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:46,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:30:46,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-16 12:30:46,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349585325] [2022-11-16 12:30:46,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:46,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:30:46,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:46,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:30:46,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:30:46,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 106 [2022-11-16 12:30:46,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:46,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:46,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 106 [2022-11-16 12:30:46,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:47,260 INFO L130 PetriNetUnfolder]: 308/993 cut-off events. [2022-11-16 12:30:47,260 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:30:47,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1702 conditions, 993 events. 308/993 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6034 event pairs, 128 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1695. Up to 393 conditions per place. [2022-11-16 12:30:47,275 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 97 selfloop transitions, 22 changer transitions 0/189 dead transitions. [2022-11-16 12:30:47,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 189 transitions, 664 flow [2022-11-16 12:30:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:30:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:30:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2022-11-16 12:30:47,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8018867924528302 [2022-11-16 12:30:47,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 510 transitions. [2022-11-16 12:30:47,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 510 transitions. [2022-11-16 12:30:47,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:47,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 510 transitions. [2022-11-16 12:30:47,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:47,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:47,284 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:47,284 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 264 flow. Second operand 6 states and 510 transitions. [2022-11-16 12:30:47,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 189 transitions, 664 flow [2022-11-16 12:30:47,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 189 transitions, 658 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 12:30:47,292 INFO L231 Difference]: Finished difference. Result has 125 places, 130 transitions, 404 flow [2022-11-16 12:30:47,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=125, PETRI_TRANSITIONS=130} [2022-11-16 12:30:47,294 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 20 predicate places. [2022-11-16 12:30:47,295 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 130 transitions, 404 flow [2022-11-16 12:30:47,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 6 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:47,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:47,296 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:47,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 12:30:47,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:47,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:47,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash 491733010, now seen corresponding path program 1 times [2022-11-16 12:30:47,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:47,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947118345] [2022-11-16 12:30:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:47,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:47,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:47,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947118345] [2022-11-16 12:30:47,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947118345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:47,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721580051] [2022-11-16 12:30:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:47,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:47,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:47,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:30:47,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:30:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:47,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:30:47,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:47,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:48,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721580051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:48,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:30:48,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 12:30:48,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485152646] [2022-11-16 12:30:48,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:48,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:48,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:48,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:48,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:48,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-16 12:30:48,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 130 transitions, 404 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:48,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:48,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-16 12:30:48,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:48,450 INFO L130 PetriNetUnfolder]: 34/379 cut-off events. [2022-11-16 12:30:48,450 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-11-16 12:30:48,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 379 events. 34/379 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1751 event pairs, 9 based on Foata normal form. 4/359 useless extension candidates. Maximal degree in co-relation 631. Up to 53 conditions per place. [2022-11-16 12:30:48,453 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 19 selfloop transitions, 21 changer transitions 0/154 dead transitions. [2022-11-16 12:30:48,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 154 transitions, 584 flow [2022-11-16 12:30:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:30:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:30:48,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2018 transitions. [2022-11-16 12:30:48,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065588499550764 [2022-11-16 12:30:48,461 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2018 transitions. [2022-11-16 12:30:48,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2018 transitions. [2022-11-16 12:30:48,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:48,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2018 transitions. [2022-11-16 12:30:48,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.0952380952381) internal successors, (2018), 21 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:48,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:48,479 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:48,479 INFO L175 Difference]: Start difference. First operand has 125 places, 130 transitions, 404 flow. Second operand 21 states and 2018 transitions. [2022-11-16 12:30:48,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 154 transitions, 584 flow [2022-11-16 12:30:48,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 154 transitions, 584 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:30:48,495 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 534 flow [2022-11-16 12:30:48,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=534, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2022-11-16 12:30:48,499 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 45 predicate places. [2022-11-16 12:30:48,500 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 534 flow [2022-11-16 12:30:48,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:48,501 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:48,503 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:48,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:48,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:48,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:48,711 INFO L85 PathProgramCache]: Analyzing trace with hash 656757202, now seen corresponding path program 2 times [2022-11-16 12:30:48,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:48,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339001832] [2022-11-16 12:30:48,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:48,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:49,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:49,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339001832] [2022-11-16 12:30:49,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339001832] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:49,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185678253] [2022-11-16 12:30:49,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:49,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:49,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:49,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:30:49,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:30:49,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:30:49,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:49,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:30:49,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:49,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 12:30:49,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 12:30:49,420 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:30:49,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 12:30:49,484 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:30:49,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 12:30:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 12:30:49,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:49,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185678253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:49,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:30:49,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 12:30:49,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052668605] [2022-11-16 12:30:49,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:49,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:30:49,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:49,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:30:49,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:30:49,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-16 12:30:49,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:49,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:49,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-16 12:30:49,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:50,142 INFO L130 PetriNetUnfolder]: 509/1636 cut-off events. [2022-11-16 12:30:50,142 INFO L131 PetriNetUnfolder]: For 383/385 co-relation queries the response was YES. [2022-11-16 12:30:50,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3334 conditions, 1636 events. 509/1636 cut-off events. For 383/385 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 11333 event pairs, 224 based on Foata normal form. 2/1490 useless extension candidates. Maximal degree in co-relation 3317. Up to 756 conditions per place. [2022-11-16 12:30:50,153 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 102 selfloop transitions, 36 changer transitions 2/220 dead transitions. [2022-11-16 12:30:50,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 220 transitions, 1006 flow [2022-11-16 12:30:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:30:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:30:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 496 transitions. [2022-11-16 12:30:50,155 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.779874213836478 [2022-11-16 12:30:50,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 496 transitions. [2022-11-16 12:30:50,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 496 transitions. [2022-11-16 12:30:50,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:50,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 496 transitions. [2022-11-16 12:30:50,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:50,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:50,159 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:50,159 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 534 flow. Second operand 6 states and 496 transitions. [2022-11-16 12:30:50,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 220 transitions, 1006 flow [2022-11-16 12:30:50,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 220 transitions, 982 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 12:30:50,166 INFO L231 Difference]: Finished difference. Result has 153 places, 175 transitions, 762 flow [2022-11-16 12:30:50,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=153, PETRI_TRANSITIONS=175} [2022-11-16 12:30:50,167 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 48 predicate places. [2022-11-16 12:30:50,168 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 175 transitions, 762 flow [2022-11-16 12:30:50,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:50,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:50,168 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:50,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:50,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 12:30:50,374 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:50,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1425828848, now seen corresponding path program 1 times [2022-11-16 12:30:50,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:50,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347451960] [2022-11-16 12:30:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:50,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:50,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:50,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347451960] [2022-11-16 12:30:50,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347451960] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:30:50,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543687913] [2022-11-16 12:30:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:50,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:50,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:30:50,740 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:30:50,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:30:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:50,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:30:50,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:51,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:51,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543687913] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:51,232 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:30:51,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 12:30:51,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160603974] [2022-11-16 12:30:51,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:51,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:30:51,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:51,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:30:51,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:30:51,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-16 12:30:51,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 175 transitions, 762 flow. Second operand has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:51,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:51,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-16 12:30:51,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:51,758 INFO L130 PetriNetUnfolder]: 112/814 cut-off events. [2022-11-16 12:30:51,758 INFO L131 PetriNetUnfolder]: For 400/410 co-relation queries the response was YES. [2022-11-16 12:30:51,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635 conditions, 814 events. 112/814 cut-off events. For 400/410 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5532 event pairs, 25 based on Foata normal form. 11/772 useless extension candidates. Maximal degree in co-relation 1613. Up to 132 conditions per place. [2022-11-16 12:30:51,764 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 30 changer transitions 0/201 dead transitions. [2022-11-16 12:30:51,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 201 transitions, 1012 flow [2022-11-16 12:30:51,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:30:51,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 12:30:51,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2878 transitions. [2022-11-16 12:30:51,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9050314465408805 [2022-11-16 12:30:51,772 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2878 transitions. [2022-11-16 12:30:51,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2878 transitions. [2022-11-16 12:30:51,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:51,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2878 transitions. [2022-11-16 12:30:51,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 95.93333333333334) internal successors, (2878), 30 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:51,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:51,789 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:51,789 INFO L175 Difference]: Start difference. First operand has 153 places, 175 transitions, 762 flow. Second operand 30 states and 2878 transitions. [2022-11-16 12:30:51,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 201 transitions, 1012 flow [2022-11-16 12:30:51,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 201 transitions, 988 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-11-16 12:30:51,799 INFO L231 Difference]: Finished difference. Result has 185 places, 185 transitions, 890 flow [2022-11-16 12:30:51,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=890, PETRI_PLACES=185, PETRI_TRANSITIONS=185} [2022-11-16 12:30:51,800 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 80 predicate places. [2022-11-16 12:30:51,800 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 185 transitions, 890 flow [2022-11-16 12:30:51,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:51,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:51,801 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:51,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-16 12:30:52,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:30:52,007 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:52,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:52,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879691, now seen corresponding path program 2 times [2022-11-16 12:30:52,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:52,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795958711] [2022-11-16 12:30:52,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:52,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:30:52,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:52,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795958711] [2022-11-16 12:30:52,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795958711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:52,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:52,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:30:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97793518] [2022-11-16 12:30:52,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:52,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:30:52,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:30:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:30:52,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 106 [2022-11-16 12:30:52,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 185 transitions, 890 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:52,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:52,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 106 [2022-11-16 12:30:52,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:53,299 INFO L130 PetriNetUnfolder]: 605/2064 cut-off events. [2022-11-16 12:30:53,299 INFO L131 PetriNetUnfolder]: For 1198/1198 co-relation queries the response was YES. [2022-11-16 12:30:53,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5029 conditions, 2064 events. 605/2064 cut-off events. For 1198/1198 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 15492 event pairs, 204 based on Foata normal form. 0/1965 useless extension candidates. Maximal degree in co-relation 5003. Up to 889 conditions per place. [2022-11-16 12:30:53,319 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 157 selfloop transitions, 49 changer transitions 0/301 dead transitions. [2022-11-16 12:30:53,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 301 transitions, 1821 flow [2022-11-16 12:30:53,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:30:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:30:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2022-11-16 12:30:53,322 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7940251572327044 [2022-11-16 12:30:53,322 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2022-11-16 12:30:53,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2022-11-16 12:30:53,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:53,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2022-11-16 12:30:53,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:53,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:53,327 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:53,327 INFO L175 Difference]: Start difference. First operand has 185 places, 185 transitions, 890 flow. Second operand 6 states and 505 transitions. [2022-11-16 12:30:53,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 301 transitions, 1821 flow [2022-11-16 12:30:53,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 301 transitions, 1775 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 12:30:53,341 INFO L231 Difference]: Finished difference. Result has 176 places, 226 transitions, 1260 flow [2022-11-16 12:30:53,342 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1260, PETRI_PLACES=176, PETRI_TRANSITIONS=226} [2022-11-16 12:30:53,342 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 71 predicate places. [2022-11-16 12:30:53,343 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 226 transitions, 1260 flow [2022-11-16 12:30:53,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:53,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:53,343 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:53,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:30:53,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:53,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:53,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1373859952, now seen corresponding path program 1 times [2022-11-16 12:30:53,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:53,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448678319] [2022-11-16 12:30:53,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:53,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:30:53,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:53,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448678319] [2022-11-16 12:30:53,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448678319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:53,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:53,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:30:53,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378688342] [2022-11-16 12:30:53,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:53,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:30:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:53,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:30:53,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:30:53,829 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 106 [2022-11-16 12:30:53,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 226 transitions, 1260 flow. Second operand has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:53,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:53,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 106 [2022-11-16 12:30:53,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:54,846 INFO L130 PetriNetUnfolder]: 900/2834 cut-off events. [2022-11-16 12:30:54,846 INFO L131 PetriNetUnfolder]: For 2517/2517 co-relation queries the response was YES. [2022-11-16 12:30:54,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7689 conditions, 2834 events. 900/2834 cut-off events. For 2517/2517 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 22510 event pairs, 333 based on Foata normal form. 0/2744 useless extension candidates. Maximal degree in co-relation 7658. Up to 1354 conditions per place. [2022-11-16 12:30:54,869 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 155 selfloop transitions, 72 changer transitions 45/364 dead transitions. [2022-11-16 12:30:54,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 364 transitions, 2520 flow [2022-11-16 12:30:54,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:30:54,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:30:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2022-11-16 12:30:54,871 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7783018867924528 [2022-11-16 12:30:54,871 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2022-11-16 12:30:54,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2022-11-16 12:30:54,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:54,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2022-11-16 12:30:54,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.5) internal successors, (495), 6 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:54,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:54,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:54,876 INFO L175 Difference]: Start difference. First operand has 176 places, 226 transitions, 1260 flow. Second operand 6 states and 495 transitions. [2022-11-16 12:30:54,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 364 transitions, 2520 flow [2022-11-16 12:30:54,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 364 transitions, 2518 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-16 12:30:54,898 INFO L231 Difference]: Finished difference. Result has 185 places, 268 transitions, 1798 flow [2022-11-16 12:30:54,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1798, PETRI_PLACES=185, PETRI_TRANSITIONS=268} [2022-11-16 12:30:54,900 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 80 predicate places. [2022-11-16 12:30:54,900 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 268 transitions, 1798 flow [2022-11-16 12:30:54,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.66666666666667) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:30:54,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:54,901 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:54,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:30:54,901 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:30:54,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:54,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1557368179, now seen corresponding path program 1 times [2022-11-16 12:30:54,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:54,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739143549] [2022-11-16 12:30:54,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:54,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:54,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:30:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:30:55,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:30:55,031 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:30:55,032 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-16 12:30:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-16 12:30:55,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-16 12:30:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-16 12:30:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-16 12:30:55,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-16 12:30:55,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-16 12:30:55,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:30:55,036 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-11-16 12:30:55,043 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:30:55,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:30:55,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:30:55 BasicIcfg [2022-11-16 12:30:55,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:30:55,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:30:55,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:30:55,137 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:30:55,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:43" (3/4) ... [2022-11-16 12:30:55,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:30:55,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:30:55,143 INFO L158 Benchmark]: Toolchain (without parser) took 12729.58ms. Allocated memory was 109.1MB in the beginning and 209.7MB in the end (delta: 100.7MB). Free memory was 67.2MB in the beginning and 119.3MB in the end (delta: -52.1MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2022-11-16 12:30:55,144 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:30:55,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.60ms. Allocated memory is still 109.1MB. Free memory was 67.0MB in the beginning and 66.6MB in the end (delta: 427.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:30:55,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.27ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 64.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:30:55,145 INFO L158 Benchmark]: Boogie Preprocessor took 38.82ms. Allocated memory is still 109.1MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:30:55,145 INFO L158 Benchmark]: RCFGBuilder took 623.39ms. Allocated memory is still 109.1MB. Free memory was 61.9MB in the beginning and 45.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 12:30:55,146 INFO L158 Benchmark]: TraceAbstraction took 11163.30ms. Allocated memory was 109.1MB in the beginning and 209.7MB in the end (delta: 100.7MB). Free memory was 44.6MB in the beginning and 119.3MB in the end (delta: -74.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-11-16 12:30:55,146 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 209.7MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:30:55,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.60ms. Allocated memory is still 109.1MB. Free memory was 67.0MB in the beginning and 66.6MB in the end (delta: 427.2kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.27ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 64.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.82ms. Allocated memory is still 109.1MB. Free memory was 64.0MB in the beginning and 61.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 623.39ms. Allocated memory is still 109.1MB. Free memory was 61.9MB in the beginning and 45.0MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11163.30ms. Allocated memory was 109.1MB in the beginning and 209.7MB in the end (delta: 100.7MB). Free memory was 44.6MB in the beginning and 119.3MB in the end (delta: -74.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 209.7MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; VAL [a={1:0}] [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=0] [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=1] [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=2] [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=3] [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=4] [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=5] [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=6] [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=7] [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=8] [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=9] [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) VAL [a={1:0}, i=10] [L939] 0 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=9, a={1:0}, i=9, i=10] [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; VAL [a={1:0}, i=9, i=10, t1={2:0}] [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=10, i=9, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={2:0}] [L927] 1 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=8, a={1:0}, arg={0:0}, arg={0:0}, i=8] [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) VAL [\old(cond)=1, \old(cond)=1, a={1:0}, cond=1, cond=1] [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; VAL [a={1:0}, arg={0:0}, arg={0:0}, i=8, p={1:224}] [L931] 1 i++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=8, i++=8, p={1:224}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, a[i].datum=0, i=10, i=9, t1={2:0}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, a[i].datum++=281, a[i].datum++=0, i=10, i=9, t1={2:0}] [L931] 1 i++ VAL [a={1:0}, arg={0:0}, arg={0:0}, i=9, p={1:224}] [L932] EXPR 1 a[i].datum VAL [a={1:0}, a[i].datum=1, arg={0:0}, arg={0:0}, i=9, p={1:224}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, a[i].datum++=281, a[i].datum++=0, i=9, i=10, t1={2:0}] [L932] 1 a[i].datum++ VAL [a={1:0}, a[i].datum=1, arg={0:0}, arg={0:0}, i=9, p={1:224}] [L944] 0 a[i].datum++ VAL [a={1:0}, a[i].datum=0, a[i].datum++=0, a[i].datum++=281, i=9, i=10, t1={2:0}] 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: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [932] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: 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: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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, 144 locations, 7 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: 10.8s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 183 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1100 IncrementalHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 147 mSDtfsCounter, 1100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 602 GetRequests, 473 SyntacticMatches, 11 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1798occurred in iteration=9, InterpolantAutomatonStates: 89, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 979 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1085 ConstructedInterpolants, 0 QuantifiedInterpolants, 1999 SizeOfPredicates, 22 NumberOfNonLiveVariables, 686 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 600/1123 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! [2022-11-16 12:30:55,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21fc03e4-416c-4ad5-a684-fc37bd0d27a6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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