./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y --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 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:16:41,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:16:41,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:16:41,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:16:41,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:16:41,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:16:41,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:16:41,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:16:41,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:16:41,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:16:41,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:16:41,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:16:41,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:16:41,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:16:41,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:16:42,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:16:42,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:16:42,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:16:42,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:16:42,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:16:42,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:16:42,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:16:42,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:16:42,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:16:42,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:16:42,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:16:42,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:16:42,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:16:42,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:16:42,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:16:42,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:16:42,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:16:42,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:16:42,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:16:42,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:16:42,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:16:42,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:16:42,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:16:42,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:16:42,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:16:42,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:16:42,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-13 18:16:42,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:16:42,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:16:42,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:16:42,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:16:42,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:16:42,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:16:42,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:16:42,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:16:42,062 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:16:42,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:16:42,062 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:16:42,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:16:42,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:16:42,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:16:42,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:16:42,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:16:42,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:16:42,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:16:42,064 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-13 18:16:42,064 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:16:42,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:16:42,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:16:42,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:16:42,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:16:42,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:16:42,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:16:42,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:16:42,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:16:42,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:16:42,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:16:42,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:16:42,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:16:42,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:16:42,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:16:42,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:16:42,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:16:42,067 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_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1985bb251db70a1c798d345be7e1671f9dcc6a359b969ca99d23e0003d9a3770 [2021-11-13 18:16:42,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:16:42,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:16:42,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:16:42,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:16:42,333 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:16:42,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2021-11-13 18:16:42,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/data/e42257152/40662a90a9db4b1b92dd8cfca4d308a3/FLAG25220fa6d [2021-11-13 18:16:42,950 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:16:42,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2021-11-13 18:16:42,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/data/e42257152/40662a90a9db4b1b92dd8cfca4d308a3/FLAG25220fa6d [2021-11-13 18:16:43,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/data/e42257152/40662a90a9db4b1b92dd8cfca4d308a3 [2021-11-13 18:16:43,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:16:43,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:16:43,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:16:43,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:16:43,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:16:43,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:43,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce1c277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43, skipping insertion in model container [2021-11-13 18:16:43,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:43,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:16:43,477 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:16:43,814 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2021-11-13 18:16:43,817 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2021-11-13 18:16:43,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:16:43,844 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:16:43,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30247,30260] [2021-11-13 18:16:43,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/sv-benchmarks/c/pthread-atomic/time_var_mutex.i[30452,30465] [2021-11-13 18:16:43,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:16:43,964 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:16:43,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43 WrapperNode [2021-11-13 18:16:43,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:16:43,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:16:43,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:16:43,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:16:43,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:43,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:16:44,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:16:44,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:16:44,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:16:44,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:16:44,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:16:44,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:16:44,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:16:44,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (1/1) ... [2021-11-13 18:16:44,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:16:44,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:16:44,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:16:44,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:16:44,129 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2021-11-13 18:16:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2021-11-13 18:16:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:16:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2021-11-13 18:16:44,130 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2021-11-13 18:16:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:16:44,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-13 18:16:44,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:16:44,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:16:44,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:16:44,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:16:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:16:44,133 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-13 18:16:44,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:16:44,598 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:16:44,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:44 BoogieIcfgContainer [2021-11-13 18:16:44,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:16:44,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:16:44,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:16:44,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:16:44,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:16:43" (1/3) ... [2021-11-13 18:16:44,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5fdec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:16:44, skipping insertion in model container [2021-11-13 18:16:44,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:16:43" (2/3) ... [2021-11-13 18:16:44,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b5fdec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:16:44, skipping insertion in model container [2021-11-13 18:16:44,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:44" (3/3) ... [2021-11-13 18:16:44,612 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2021-11-13 18:16:44,623 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-13 18:16:44,623 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:16:44,623 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-13 18:16:44,623 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-13 18:16:44,655 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,656 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,656 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,656 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,657 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,657 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,657 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,657 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,657 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,658 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,658 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,658 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,659 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,659 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,659 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,659 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,659 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,660 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,660 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,660 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,660 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,660 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,661 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,661 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,661 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,661 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,661 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,662 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,662 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,662 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,662 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,662 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,663 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,663 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,663 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,663 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,664 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,664 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,664 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,664 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,665 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,665 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,665 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,665 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,666 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,666 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,666 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,666 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,666 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,666 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,667 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,667 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,678 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,680 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,680 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,680 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,680 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,681 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,681 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,681 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,681 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,681 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,682 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,682 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,682 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,683 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,683 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,683 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,683 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,683 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,683 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,684 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,684 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,684 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,684 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,684 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,688 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,688 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,688 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,688 WARN L322 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,689 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,689 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,689 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,689 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,689 WARN L322 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,698 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,698 WARN L322 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,699 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,699 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,699 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,699 WARN L322 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-13 18:16:44,706 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-13 18:16:44,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:16:44,767 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:16:44,767 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-11-13 18:16:44,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 148 transitions, 312 flow [2021-11-13 18:16:44,848 INFO L129 PetriNetUnfolder]: 5/146 cut-off events. [2021-11-13 18:16:44,848 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-13 18:16:44,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 5/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 230 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 95. Up to 3 conditions per place. [2021-11-13 18:16:44,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 148 transitions, 312 flow [2021-11-13 18:16:44,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 136 transitions, 281 flow [2021-11-13 18:16:44,870 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-11-13 18:16:44,870 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-13 18:16:44,870 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:44,871 INFO L254 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] [2021-11-13 18:16:44,871 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:44,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:44,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1481477851, now seen corresponding path program 1 times [2021-11-13 18:16:44,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:44,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873876242] [2021-11-13 18:16:44,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:44,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:45,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:45,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873876242] [2021-11-13 18:16:45,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873876242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:45,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:45,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:45,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678273978] [2021-11-13 18:16:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:45,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:45,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:45,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:45,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:45,204 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 148 [2021-11-13 18:16:45,217 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 136 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:45,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 148 [2021-11-13 18:16:45,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:45,325 INFO L129 PetriNetUnfolder]: 6/204 cut-off events. [2021-11-13 18:16:45,325 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-11-13 18:16:45,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 204 events. 6/204 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 553 event pairs, 2 based on Foata normal form. 11/185 useless extension candidates. Maximal degree in co-relation 167. Up to 11 conditions per place. [2021-11-13 18:16:45,329 INFO L132 encePairwiseOnDemand]: 141/148 looper letters, 10 selfloop transitions, 2 changer transitions 1/131 dead transitions. [2021-11-13 18:16:45,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 131 transitions, 301 flow [2021-11-13 18:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2021-11-13 18:16:45,345 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9211711711711712 [2021-11-13 18:16:45,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2021-11-13 18:16:45,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2021-11-13 18:16:45,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:45,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2021-11-13 18:16:45,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,369 INFO L186 Difference]: Start difference. First operand has 138 places, 136 transitions, 281 flow. Second operand 3 states and 409 transitions. [2021-11-13 18:16:45,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 131 transitions, 301 flow [2021-11-13 18:16:45,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 293 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 18:16:45,394 INFO L242 Difference]: Finished difference. Result has 133 places, 128 transitions, 264 flow [2021-11-13 18:16:45,396 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2021-11-13 18:16:45,399 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2021-11-13 18:16:45,400 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 264 flow [2021-11-13 18:16:45,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,401 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:45,401 INFO L254 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] [2021-11-13 18:16:45,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:16:45,401 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2066031499, now seen corresponding path program 1 times [2021-11-13 18:16:45,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:45,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686797152] [2021-11-13 18:16:45,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:45,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:45,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:45,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686797152] [2021-11-13 18:16:45,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686797152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:45,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:45,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:45,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678091251] [2021-11-13 18:16:45,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:45,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:45,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:45,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:45,479 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 148 [2021-11-13 18:16:45,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:45,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 148 [2021-11-13 18:16:45,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:45,583 INFO L129 PetriNetUnfolder]: 23/354 cut-off events. [2021-11-13 18:16:45,583 INFO L130 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2021-11-13 18:16:45,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 354 events. 23/354 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1512 event pairs, 5 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 322. Up to 29 conditions per place. [2021-11-13 18:16:45,588 INFO L132 encePairwiseOnDemand]: 142/148 looper letters, 13 selfloop transitions, 4 changer transitions 0/133 dead transitions. [2021-11-13 18:16:45,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 133 transitions, 311 flow [2021-11-13 18:16:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:45,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:45,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2021-11-13 18:16:45,592 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9211711711711712 [2021-11-13 18:16:45,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2021-11-13 18:16:45,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2021-11-13 18:16:45,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:45,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2021-11-13 18:16:45,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,597 INFO L186 Difference]: Start difference. First operand has 133 places, 128 transitions, 264 flow. Second operand 3 states and 409 transitions. [2021-11-13 18:16:45,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 133 transitions, 311 flow [2021-11-13 18:16:45,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 133 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:16:45,603 INFO L242 Difference]: Finished difference. Result has 133 places, 129 transitions, 284 flow [2021-11-13 18:16:45,603 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=133, PETRI_TRANSITIONS=129} [2021-11-13 18:16:45,604 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2021-11-13 18:16:45,604 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 129 transitions, 284 flow [2021-11-13 18:16:45,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:45,605 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:45,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:16:45,606 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:45,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1501975941, now seen corresponding path program 1 times [2021-11-13 18:16:45,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:45,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648431365] [2021-11-13 18:16:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:45,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:45,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:45,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648431365] [2021-11-13 18:16:45,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648431365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:45,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:45,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:16:45,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076639286] [2021-11-13 18:16:45,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:45,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:45,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:45,747 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 148 [2021-11-13 18:16:45,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 129 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:45,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 148 [2021-11-13 18:16:45,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:45,812 INFO L129 PetriNetUnfolder]: 6/266 cut-off events. [2021-11-13 18:16:45,813 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-11-13 18:16:45,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 266 events. 6/266 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 854 event pairs, 1 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 176. Up to 9 conditions per place. [2021-11-13 18:16:45,816 INFO L132 encePairwiseOnDemand]: 145/148 looper letters, 6 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2021-11-13 18:16:45,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 129 transitions, 302 flow [2021-11-13 18:16:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2021-11-13 18:16:45,819 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9256756756756757 [2021-11-13 18:16:45,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2021-11-13 18:16:45,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2021-11-13 18:16:45,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:45,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2021-11-13 18:16:45,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,824 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,824 INFO L186 Difference]: Start difference. First operand has 133 places, 129 transitions, 284 flow. Second operand 3 states and 411 transitions. [2021-11-13 18:16:45,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 129 transitions, 302 flow [2021-11-13 18:16:45,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 129 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:16:45,832 INFO L242 Difference]: Finished difference. Result has 133 places, 128 transitions, 278 flow [2021-11-13 18:16:45,833 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=133, PETRI_TRANSITIONS=128} [2021-11-13 18:16:45,835 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -5 predicate places. [2021-11-13 18:16:45,836 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 128 transitions, 278 flow [2021-11-13 18:16:45,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,836 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:45,836 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:45,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:16:45,837 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:45,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:45,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1206944292, now seen corresponding path program 1 times [2021-11-13 18:16:45,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:45,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317760397] [2021-11-13 18:16:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:45,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:45,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:45,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317760397] [2021-11-13 18:16:45,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317760397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:45,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:45,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:45,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642473525] [2021-11-13 18:16:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:45,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:45,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:45,945 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 148 [2021-11-13 18:16:45,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 128 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:45,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:45,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 148 [2021-11-13 18:16:45,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:46,031 INFO L129 PetriNetUnfolder]: 27/405 cut-off events. [2021-11-13 18:16:46,031 INFO L130 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES. [2021-11-13 18:16:46,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 405 events. 27/405 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1896 event pairs, 8 based on Foata normal form. 2/343 useless extension candidates. Maximal degree in co-relation 357. Up to 45 conditions per place. [2021-11-13 18:16:46,036 INFO L132 encePairwiseOnDemand]: 143/148 looper letters, 18 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2021-11-13 18:16:46,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 135 transitions, 346 flow [2021-11-13 18:16:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:46,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:46,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2021-11-13 18:16:46,039 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9099099099099099 [2021-11-13 18:16:46,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2021-11-13 18:16:46,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2021-11-13 18:16:46,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:46,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2021-11-13 18:16:46,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 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) [2021-11-13 18:16:46,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,044 INFO L186 Difference]: Start difference. First operand has 133 places, 128 transitions, 278 flow. Second operand 3 states and 404 transitions. [2021-11-13 18:16:46,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 135 transitions, 346 flow [2021-11-13 18:16:46,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 135 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:16:46,049 INFO L242 Difference]: Finished difference. Result has 135 places, 131 transitions, 306 flow [2021-11-13 18:16:46,049 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=135, PETRI_TRANSITIONS=131} [2021-11-13 18:16:46,051 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -3 predicate places. [2021-11-13 18:16:46,051 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 131 transitions, 306 flow [2021-11-13 18:16:46,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,053 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:46,053 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:46,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:16:46,053 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:46,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:46,056 INFO L85 PathProgramCache]: Analyzing trace with hash 245625406, now seen corresponding path program 1 times [2021-11-13 18:16:46,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:46,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285136775] [2021-11-13 18:16:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:46,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:46,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:46,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285136775] [2021-11-13 18:16:46,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285136775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:46,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:46,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:16:46,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340594213] [2021-11-13 18:16:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:46,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:16:46,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:46,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:16:46,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:16:46,327 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2021-11-13 18:16:46,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 131 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:46,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2021-11-13 18:16:46,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:46,443 INFO L129 PetriNetUnfolder]: 6/278 cut-off events. [2021-11-13 18:16:46,445 INFO L130 PetriNetUnfolder]: For 17/42 co-relation queries the response was YES. [2021-11-13 18:16:46,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 278 events. 6/278 cut-off events. For 17/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1028 event pairs, 0 based on Foata normal form. 16/257 useless extension candidates. Maximal degree in co-relation 299. Up to 30 conditions per place. [2021-11-13 18:16:46,450 INFO L132 encePairwiseOnDemand]: 143/148 looper letters, 14 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2021-11-13 18:16:46,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 340 flow [2021-11-13 18:16:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:16:46,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-13 18:16:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2021-11-13 18:16:46,454 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.838963963963964 [2021-11-13 18:16:46,455 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2021-11-13 18:16:46,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2021-11-13 18:16:46,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:46,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2021-11-13 18:16:46,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,463 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,463 INFO L186 Difference]: Start difference. First operand has 135 places, 131 transitions, 306 flow. Second operand 6 states and 745 transitions. [2021-11-13 18:16:46,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 340 flow [2021-11-13 18:16:46,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 130 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:16:46,468 INFO L242 Difference]: Finished difference. Result has 137 places, 130 transitions, 304 flow [2021-11-13 18:16:46,469 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=304, PETRI_PLACES=137, PETRI_TRANSITIONS=130} [2021-11-13 18:16:46,472 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -1 predicate places. [2021-11-13 18:16:46,472 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 130 transitions, 304 flow [2021-11-13 18:16:46,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:46,474 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:46,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:16:46,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting de_allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:46,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:46,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1068745034, now seen corresponding path program 1 times [2021-11-13 18:16:46,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:46,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634172272] [2021-11-13 18:16:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:46,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:46,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:46,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634172272] [2021-11-13 18:16:46,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634172272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:46,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:46,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:46,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242283149] [2021-11-13 18:16:46,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:46,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:46,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:46,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:46,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:46,563 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 148 [2021-11-13 18:16:46,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 130 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:46,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 148 [2021-11-13 18:16:46,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:46,757 INFO L129 PetriNetUnfolder]: 161/798 cut-off events. [2021-11-13 18:16:46,757 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-11-13 18:16:46,761 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 798 events. 161/798 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4673 event pairs, 86 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 1067. Up to 289 conditions per place. [2021-11-13 18:16:46,767 INFO L132 encePairwiseOnDemand]: 142/148 looper letters, 21 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2021-11-13 18:16:46,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 139 transitions, 375 flow [2021-11-13 18:16:46,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:46,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2021-11-13 18:16:46,770 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9054054054054054 [2021-11-13 18:16:46,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2021-11-13 18:16:46,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2021-11-13 18:16:46,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:46,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2021-11-13 18:16:46,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,775 INFO L186 Difference]: Start difference. First operand has 137 places, 130 transitions, 304 flow. Second operand 3 states and 402 transitions. [2021-11-13 18:16:46,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 139 transitions, 375 flow [2021-11-13 18:16:46,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 139 transitions, 368 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-13 18:16:46,781 INFO L242 Difference]: Finished difference. Result has 137 places, 134 transitions, 335 flow [2021-11-13 18:16:46,781 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=335, PETRI_PLACES=137, PETRI_TRANSITIONS=134} [2021-11-13 18:16:46,784 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -1 predicate places. [2021-11-13 18:16:46,784 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 134 transitions, 335 flow [2021-11-13 18:16:46,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,784 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:46,785 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:46,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:16:46,785 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting allocatorErr2ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:46,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1700014363, now seen corresponding path program 1 times [2021-11-13 18:16:46,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:46,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807778490] [2021-11-13 18:16:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:46,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:46,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:46,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807778490] [2021-11-13 18:16:46,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807778490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:46,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:46,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:46,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379880919] [2021-11-13 18:16:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:46,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:46,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:46,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:46,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:46,861 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 148 [2021-11-13 18:16:46,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 134 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:46,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 148 [2021-11-13 18:16:46,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:46,956 INFO L129 PetriNetUnfolder]: 36/448 cut-off events. [2021-11-13 18:16:46,956 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2021-11-13 18:16:46,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 448 events. 36/448 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2175 event pairs, 8 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 514. Up to 47 conditions per place. [2021-11-13 18:16:46,963 INFO L132 encePairwiseOnDemand]: 145/148 looper letters, 10 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2021-11-13 18:16:46,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 134 transitions, 361 flow [2021-11-13 18:16:46,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:46,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2021-11-13 18:16:46,965 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8941441441441441 [2021-11-13 18:16:46,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2021-11-13 18:16:46,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2021-11-13 18:16:46,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:46,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2021-11-13 18:16:46,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,970 INFO L186 Difference]: Start difference. First operand has 137 places, 134 transitions, 335 flow. Second operand 3 states and 397 transitions. [2021-11-13 18:16:46,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 134 transitions, 361 flow [2021-11-13 18:16:46,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 134 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:16:46,977 INFO L242 Difference]: Finished difference. Result has 136 places, 133 transitions, 327 flow [2021-11-13 18:16:46,978 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2021-11-13 18:16:46,979 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -2 predicate places. [2021-11-13 18:16:46,979 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 327 flow [2021-11-13 18:16:46,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:46,982 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:46,982 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:46,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:16:46,982 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting de_allocatorErr2ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:46,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:46,983 INFO L85 PathProgramCache]: Analyzing trace with hash 391140873, now seen corresponding path program 1 times [2021-11-13 18:16:46,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:46,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603286696] [2021-11-13 18:16:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:46,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:47,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:47,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:47,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603286696] [2021-11-13 18:16:47,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603286696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:47,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:47,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:47,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443987533] [2021-11-13 18:16:47,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:47,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:47,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:47,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:47,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:47,040 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 148 [2021-11-13 18:16:47,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:47,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 148 [2021-11-13 18:16:47,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:47,195 INFO L129 PetriNetUnfolder]: 115/783 cut-off events. [2021-11-13 18:16:47,196 INFO L130 PetriNetUnfolder]: For 111/153 co-relation queries the response was YES. [2021-11-13 18:16:47,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 783 events. 115/783 cut-off events. For 111/153 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4882 event pairs, 37 based on Foata normal form. 3/670 useless extension candidates. Maximal degree in co-relation 1120. Up to 148 conditions per place. [2021-11-13 18:16:47,203 INFO L132 encePairwiseOnDemand]: 140/148 looper letters, 24 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2021-11-13 18:16:47,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 146 transitions, 430 flow [2021-11-13 18:16:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:47,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2021-11-13 18:16:47,206 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9234234234234234 [2021-11-13 18:16:47,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2021-11-13 18:16:47,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2021-11-13 18:16:47,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:47,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2021-11-13 18:16:47,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,234 INFO L186 Difference]: Start difference. First operand has 136 places, 133 transitions, 327 flow. Second operand 3 states and 410 transitions. [2021-11-13 18:16:47,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 146 transitions, 430 flow [2021-11-13 18:16:47,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 426 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-13 18:16:47,240 INFO L242 Difference]: Finished difference. Result has 138 places, 139 transitions, 385 flow [2021-11-13 18:16:47,240 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=138, PETRI_TRANSITIONS=139} [2021-11-13 18:16:47,243 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, 0 predicate places. [2021-11-13 18:16:47,243 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 139 transitions, 385 flow [2021-11-13 18:16:47,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,244 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:47,244 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:47,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:16:47,245 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting de_allocatorErr0ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:47,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1504483226, now seen corresponding path program 1 times [2021-11-13 18:16:47,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:47,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563062482] [2021-11-13 18:16:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:47,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:47,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:47,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563062482] [2021-11-13 18:16:47,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563062482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:47,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:47,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:16:47,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842273903] [2021-11-13 18:16:47,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:47,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:16:47,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:47,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:16:47,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:16:47,371 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 148 [2021-11-13 18:16:47,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 139 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,373 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:47,373 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 148 [2021-11-13 18:16:47,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:47,528 INFO L129 PetriNetUnfolder]: 34/472 cut-off events. [2021-11-13 18:16:47,529 INFO L130 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2021-11-13 18:16:47,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 472 events. 34/472 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2267 event pairs, 9 based on Foata normal form. 2/428 useless extension candidates. Maximal degree in co-relation 592. Up to 44 conditions per place. [2021-11-13 18:16:47,533 INFO L132 encePairwiseOnDemand]: 142/148 looper letters, 26 selfloop transitions, 6 changer transitions 0/137 dead transitions. [2021-11-13 18:16:47,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 137 transitions, 434 flow [2021-11-13 18:16:47,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:16:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-11-13 18:16:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 594 transitions. [2021-11-13 18:16:47,537 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8027027027027027 [2021-11-13 18:16:47,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 594 transitions. [2021-11-13 18:16:47,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 594 transitions. [2021-11-13 18:16:47,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:47,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 594 transitions. [2021-11-13 18:16:47,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,543 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 148.0) internal successors, (888), 6 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,543 INFO L186 Difference]: Start difference. First operand has 138 places, 139 transitions, 385 flow. Second operand 5 states and 594 transitions. [2021-11-13 18:16:47,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 137 transitions, 434 flow [2021-11-13 18:16:47,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 137 transitions, 410 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-11-13 18:16:47,549 INFO L242 Difference]: Finished difference. Result has 136 places, 133 transitions, 347 flow [2021-11-13 18:16:47,550 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2021-11-13 18:16:47,551 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -2 predicate places. [2021-11-13 18:16:47,551 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 347 flow [2021-11-13 18:16:47,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,552 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:47,552 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:47,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:16:47,553 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting allocatorErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:47,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:47,554 INFO L85 PathProgramCache]: Analyzing trace with hash 567917184, now seen corresponding path program 1 times [2021-11-13 18:16:47,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:47,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561638920] [2021-11-13 18:16:47,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:47,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:47,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:47,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561638920] [2021-11-13 18:16:47,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561638920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:47,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:47,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:16:47,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875378250] [2021-11-13 18:16:47,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:47,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:47,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:47,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:47,610 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 148 [2021-11-13 18:16:47,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:47,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 148 [2021-11-13 18:16:47,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:47,734 INFO L129 PetriNetUnfolder]: 68/505 cut-off events. [2021-11-13 18:16:47,734 INFO L130 PetriNetUnfolder]: For 99/141 co-relation queries the response was YES. [2021-11-13 18:16:47,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 505 events. 68/505 cut-off events. For 99/141 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2465 event pairs, 25 based on Foata normal form. 1/454 useless extension candidates. Maximal degree in co-relation 589. Up to 138 conditions per place. [2021-11-13 18:16:47,739 INFO L132 encePairwiseOnDemand]: 142/148 looper letters, 30 selfloop transitions, 7 changer transitions 0/144 dead transitions. [2021-11-13 18:16:47,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 144 transitions, 463 flow [2021-11-13 18:16:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2021-11-13 18:16:47,742 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9054054054054054 [2021-11-13 18:16:47,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2021-11-13 18:16:47,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2021-11-13 18:16:47,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:47,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2021-11-13 18:16:47,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,747 INFO L186 Difference]: Start difference. First operand has 136 places, 133 transitions, 347 flow. Second operand 3 states and 402 transitions. [2021-11-13 18:16:47,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 144 transitions, 463 flow [2021-11-13 18:16:47,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 144 transitions, 456 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-13 18:16:47,753 INFO L242 Difference]: Finished difference. Result has 137 places, 137 transitions, 392 flow [2021-11-13 18:16:47,754 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=137, PETRI_TRANSITIONS=137} [2021-11-13 18:16:47,755 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -1 predicate places. [2021-11-13 18:16:47,755 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 137 transitions, 392 flow [2021-11-13 18:16:47,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,756 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:47,756 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:47,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:16:47,758 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting de_allocatorErr1ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:47,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:47,759 INFO L85 PathProgramCache]: Analyzing trace with hash 754058, now seen corresponding path program 1 times [2021-11-13 18:16:47,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:47,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195717105] [2021-11-13 18:16:47,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:47,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:47,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:47,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195717105] [2021-11-13 18:16:47,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195717105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:47,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:47,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:16:47,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601938928] [2021-11-13 18:16:47,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:47,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:16:47,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:16:47,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:16:47,810 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 148 [2021-11-13 18:16:47,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 137 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:47,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 148 [2021-11-13 18:16:47,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:47,851 INFO L129 PetriNetUnfolder]: 3/208 cut-off events. [2021-11-13 18:16:47,851 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-11-13 18:16:47,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 208 events. 3/208 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 469 event pairs, 1 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 195. Up to 10 conditions per place. [2021-11-13 18:16:47,853 INFO L132 encePairwiseOnDemand]: 146/148 looper letters, 9 selfloop transitions, 1 changer transitions 2/122 dead transitions. [2021-11-13 18:16:47,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 122 transitions, 328 flow [2021-11-13 18:16:47,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:16:47,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-13 18:16:47,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2021-11-13 18:16:47,856 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9301801801801802 [2021-11-13 18:16:47,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2021-11-13 18:16:47,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2021-11-13 18:16:47,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:47,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2021-11-13 18:16:47,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,860 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 148.0) internal successors, (592), 4 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,860 INFO L186 Difference]: Start difference. First operand has 137 places, 137 transitions, 392 flow. Second operand 3 states and 413 transitions. [2021-11-13 18:16:47,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 122 transitions, 328 flow [2021-11-13 18:16:47,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 122 transitions, 292 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-11-13 18:16:47,865 INFO L242 Difference]: Finished difference. Result has 130 places, 118 transitions, 267 flow [2021-11-13 18:16:47,865 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=130, PETRI_TRANSITIONS=118} [2021-11-13 18:16:47,866 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -8 predicate places. [2021-11-13 18:16:47,866 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 118 transitions, 267 flow [2021-11-13 18:16:47,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:47,867 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-13 18:16:47,867 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:47,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 18:16:47,868 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [allocatorErr0ASSERT_VIOLATIONDATA_RACE, allocatorErr3ASSERT_VIOLATIONDATA_RACE, allocatorErr1ASSERT_VIOLATIONDATA_RACE, allocatorErr4ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2021-11-13 18:16:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:16:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash -519303757, now seen corresponding path program 1 times [2021-11-13 18:16:47,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:16:47,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167640734] [2021-11-13 18:16:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:16:47,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:16:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:16:48,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:16:48,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:16:48,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167640734] [2021-11-13 18:16:48,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167640734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:16:48,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:16:48,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:16:48,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306941036] [2021-11-13 18:16:48,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:16:48,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:16:48,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:16:48,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:16:48,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:16:48,029 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 148 [2021-11-13 18:16:48,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 118 transitions, 267 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:48,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-13 18:16:48,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 148 [2021-11-13 18:16:48,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-13 18:16:48,082 INFO L129 PetriNetUnfolder]: 1/174 cut-off events. [2021-11-13 18:16:48,082 INFO L130 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2021-11-13 18:16:48,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 174 events. 1/174 cut-off events. For 5/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 307 event pairs, 0 based on Foata normal form. 2/174 useless extension candidates. Maximal degree in co-relation 162. Up to 15 conditions per place. [2021-11-13 18:16:48,083 INFO L132 encePairwiseOnDemand]: 143/148 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2021-11-13 18:16:48,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 117 transitions, 297 flow [2021-11-13 18:16:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 18:16:48,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-13 18:16:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 743 transitions. [2021-11-13 18:16:48,087 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8367117117117117 [2021-11-13 18:16:48,087 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 743 transitions. [2021-11-13 18:16:48,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 743 transitions. [2021-11-13 18:16:48,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:16:48,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 743 transitions. [2021-11-13 18:16:48,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:48,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:48,095 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:48,095 INFO L186 Difference]: Start difference. First operand has 130 places, 118 transitions, 267 flow. Second operand 6 states and 743 transitions. [2021-11-13 18:16:48,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 117 transitions, 297 flow [2021-11-13 18:16:48,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 117 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-13 18:16:48,098 INFO L242 Difference]: Finished difference. Result has 131 places, 0 transitions, 0 flow [2021-11-13 18:16:48,099 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=131, PETRI_TRANSITIONS=0} [2021-11-13 18:16:48,099 INFO L334 CegarLoopForPetriNet]: 138 programPoint places, -7 predicate places. [2021-11-13 18:16:48,100 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 0 transitions, 0 flow [2021-11-13 18:16:48,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:16:48,103 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONDATA_RACE (21 of 22 remaining) [2021-11-13 18:16:48,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr3ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2021-11-13 18:16:48,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2021-11-13 18:16:48,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr4ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2021-11-13 18:16:48,104 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr2ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2021-11-13 18:16:48,105 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2021-11-13 18:16:48,105 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2021-11-13 18:16:48,105 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2021-11-13 18:16:48,105 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2021-11-13 18:16:48,106 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2021-11-13 18:16:48,106 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2021-11-13 18:16:48,106 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2021-11-13 18:16:48,106 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (9 of 22 remaining) [2021-11-13 18:16:48,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (8 of 22 remaining) [2021-11-13 18:16:48,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2021-11-13 18:16:48,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2021-11-13 18:16:48,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2021-11-13 18:16:48,107 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr4ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2021-11-13 18:16:48,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location allocatorErr2ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2021-11-13 18:16:48,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2021-11-13 18:16:48,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr1ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2021-11-13 18:16:48,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location de_allocatorErr2ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2021-11-13 18:16:48,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 18:16:48,113 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:16:48,118 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-13 18:16:48,118 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:16:48,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:16:48 BasicIcfg [2021-11-13 18:16:48,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 18:16:48,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:16:48,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:16:48,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:16:48,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:16:44" (3/4) ... [2021-11-13 18:16:48,127 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 18:16:48,133 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2021-11-13 18:16:48,134 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2021-11-13 18:16:48,139 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-13 18:16:48,139 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-13 18:16:48,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 18:16:48,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 18:16:48,173 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:16:48,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:16:48,174 INFO L158 Benchmark]: Toolchain (without parser) took 4756.05ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 70.0MB in the beginning and 33.7MB in the end (delta: 36.4MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2021-11-13 18:16:48,174 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory was 40.4MB in the beginning and 40.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:16:48,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.10ms. Allocated memory is still 104.9MB. Free memory was 69.8MB in the beginning and 69.0MB in the end (delta: 803.3kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 18:16:48,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.81ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:16:48,176 INFO L158 Benchmark]: Boogie Preprocessor took 29.04ms. Allocated memory is still 104.9MB. Free memory was 66.4MB in the beginning and 65.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:16:48,176 INFO L158 Benchmark]: RCFGBuilder took 559.64ms. Allocated memory is still 104.9MB. Free memory was 65.2MB in the beginning and 50.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 18:16:48,177 INFO L158 Benchmark]: TraceAbstraction took 3520.82ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 50.1MB in the beginning and 36.8MB in the end (delta: 13.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2021-11-13 18:16:48,177 INFO L158 Benchmark]: Witness Printer took 50.45ms. Allocated memory is still 125.8MB. Free memory was 36.8MB in the beginning and 33.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:16:48,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory was 40.4MB in the beginning and 40.4MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.10ms. Allocated memory is still 104.9MB. Free memory was 69.8MB in the beginning and 69.0MB in the end (delta: 803.3kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.81ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 66.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.04ms. Allocated memory is still 104.9MB. Free memory was 66.4MB in the beginning and 65.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 559.64ms. Allocated memory is still 104.9MB. Free memory was 65.2MB in the beginning and 50.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3520.82ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 50.1MB in the beginning and 36.8MB in the end (delta: 13.3MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Witness Printer took 50.45ms. Allocated memory is still 125.8MB. Free memory was 36.8MB in the beginning and 33.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 717]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 207 locations, 22 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: 3.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 314.65ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 242.84ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258 IncrementalHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 95 mSDtfsCounter, 258 mSolverCounterSat, 10.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=392occurred in iteration=10, InterpolantAutomatonStates: 44, 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, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 738 NumberOfCodeBlocks, 738 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 726 ConstructedInterpolants, 0 QuantifiedInterpolants, 1315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 18:16:48,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b961523a-c9cc-40a6-b748-d2cb968f597c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE