./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:08:50,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:08:50,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:08:50,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:08:50,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:08:50,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:08:50,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:08:50,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:08:50,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:08:50,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:08:50,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:08:50,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:08:50,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:08:50,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:08:50,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:08:50,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:08:50,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:08:50,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:08:50,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:08:50,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:08:50,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:08:50,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:08:50,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:08:50,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:08:50,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:08:50,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:08:50,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:08:50,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:08:50,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:08:50,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:08:50,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:08:50,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:08:50,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:08:50,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:08:50,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:08:50,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:08:50,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:08:50,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:08:50,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:08:50,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:08:50,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:08:50,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:08:50,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:08:50,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:08:50,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:08:50,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:08:50,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:08:50,216 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:08:50,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:08:50,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:08:50,217 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:08:50,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:08:50,217 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:08:50,218 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:08:50,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:08:50,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:08:50,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:08:50,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:08:50,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:08:50,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:08:50,219 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:08:50,219 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:08:50,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:08:50,220 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:08:50,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:08:50,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:08:50,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:08:50,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:08:50,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:08:50,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:08:50,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:08:50,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:08:50,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:08:50,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:08:50,222 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:08:50,223 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:08:50,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:08:50,223 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_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2022-11-16 12:08:50,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:08:50,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:08:50,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:08:50,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:08:50,592 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:08:50,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2022-11-16 12:08:50,691 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/data/2e9a6c2e7/8308c59c7b82417b8358f590d185185a/FLAGddeca50b5 [2022-11-16 12:08:51,478 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:08:51,479 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2022-11-16 12:08:51,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/data/2e9a6c2e7/8308c59c7b82417b8358f590d185185a/FLAGddeca50b5 [2022-11-16 12:08:51,527 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/data/2e9a6c2e7/8308c59c7b82417b8358f590d185185a [2022-11-16 12:08:51,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:08:51,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:08:51,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:08:51,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:08:51,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:08:51,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:08:51" (1/1) ... [2022-11-16 12:08:51,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c547baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:51, skipping insertion in model container [2022-11-16 12:08:51,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:08:51" (1/1) ... [2022-11-16 12:08:51,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:08:51,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:08:52,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:08:52,319 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:08:52,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:08:52,473 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:08:52,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52 WrapperNode [2022-11-16 12:08:52,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:08:52,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:08:52,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:08:52,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:08:52,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,534 INFO L138 Inliner]: procedures = 365, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2022-11-16 12:08:52,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:08:52,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:08:52,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:08:52,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:08:52,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:08:52,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:08:52,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:08:52,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:08:52,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (1/1) ... [2022-11-16 12:08:52,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:08:52,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:08:52,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:08:52,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:08:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:08:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:08:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:08:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:08:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:08:52,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:08:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:08:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:08:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:08:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:08:52,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:08:52,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:08:52,651 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:08:52,834 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:08:52,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:08:53,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:08:53,212 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:08:53,213 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:08:53,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:53 BoogieIcfgContainer [2022-11-16 12:08:53,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:08:53,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:08:53,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:08:53,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:08:53,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:08:51" (1/3) ... [2022-11-16 12:08:53,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0fe309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:53, skipping insertion in model container [2022-11-16 12:08:53,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:08:52" (2/3) ... [2022-11-16 12:08:53,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c0fe309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:53, skipping insertion in model container [2022-11-16 12:08:53,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:53" (3/3) ... [2022-11-16 12:08:53,249 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2022-11-16 12:08:53,259 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:08:53,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:08:53,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-16 12:08:53,273 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:08:53,370 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:08:53,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 237 flow [2022-11-16 12:08:53,577 INFO L130 PetriNetUnfolder]: 0/115 cut-off events. [2022-11-16 12:08:53,577 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:08:53,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 115 events. 0/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 12:08:53,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 116 transitions, 237 flow [2022-11-16 12:08:53,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 115 transitions, 233 flow [2022-11-16 12:08:53,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:08:53,622 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1e575b9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:08:53,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-16 12:08:53,644 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2022-11-16 12:08:53,645 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:08:53,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:53,646 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:53,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:53,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:53,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1577020611, now seen corresponding path program 1 times [2022-11-16 12:08:53,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:53,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767130936] [2022-11-16 12:08:53,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:53,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:54,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:54,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767130936] [2022-11-16 12:08:54,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767130936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:54,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:54,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:08:54,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211108212] [2022-11-16 12:08:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:54,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:08:54,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:54,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:08:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:08:54,194 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 116 [2022-11-16 12:08:54,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 115 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:54,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 116 [2022-11-16 12:08:54,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:54,357 INFO L130 PetriNetUnfolder]: 9/228 cut-off events. [2022-11-16 12:08:54,358 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:08:54,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 228 events. 9/228 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 720 event pairs, 9 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 200. Up to 29 conditions per place. [2022-11-16 12:08:54,365 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 10 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2022-11-16 12:08:54,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 255 flow [2022-11-16 12:08:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:08:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:08:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-11-16 12:08:54,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2022-11-16 12:08:54,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-11-16 12:08:54,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-11-16 12:08:54,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:54,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-11-16 12:08:54,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,426 INFO L175 Difference]: Start difference. First operand has 119 places, 115 transitions, 233 flow. Second operand 3 states and 322 transitions. [2022-11-16 12:08:54,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 255 flow [2022-11-16 12:08:54,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 114 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:08:54,439 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 234 flow [2022-11-16 12:08:54,442 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2022-11-16 12:08:54,447 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 0 predicate places. [2022-11-16 12:08:54,447 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 234 flow [2022-11-16 12:08:54,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,448 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:54,448 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:54,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:08:54,449 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:54,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:54,451 INFO L85 PathProgramCache]: Analyzing trace with hash -37338147, now seen corresponding path program 1 times [2022-11-16 12:08:54,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:54,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841003830] [2022-11-16 12:08:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:54,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:54,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:54,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841003830] [2022-11-16 12:08:54,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841003830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:54,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:54,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:08:54,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427146050] [2022-11-16 12:08:54,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:54,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:08:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:54,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:08:54,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:08:54,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 116 [2022-11-16 12:08:54,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:54,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 116 [2022-11-16 12:08:54,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:54,618 INFO L130 PetriNetUnfolder]: 0/113 cut-off events. [2022-11-16 12:08:54,619 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:08:54,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 113 events. 0/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2022-11-16 12:08:54,620 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 10 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2022-11-16 12:08:54,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 113 transitions, 256 flow [2022-11-16 12:08:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:08:54,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:08:54,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-11-16 12:08:54,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2022-11-16 12:08:54,623 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-11-16 12:08:54,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-11-16 12:08:54,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:54,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-11-16 12:08:54,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,627 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 234 flow. Second operand 3 states and 322 transitions. [2022-11-16 12:08:54,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 113 transitions, 256 flow [2022-11-16 12:08:54,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:08:54,632 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2022-11-16 12:08:54,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2022-11-16 12:08:54,633 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -1 predicate places. [2022-11-16 12:08:54,634 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2022-11-16 12:08:54,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:54,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:08:54,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1736970814, now seen corresponding path program 1 times [2022-11-16 12:08:54,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:54,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195233741] [2022-11-16 12:08:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:54,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:54,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195233741] [2022-11-16 12:08:54,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195233741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:54,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:54,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:08:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40941930] [2022-11-16 12:08:54,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:54,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:08:54,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:54,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:08:54,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:08:54,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 116 [2022-11-16 12:08:54,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:54,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 116 [2022-11-16 12:08:54,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:54,837 INFO L130 PetriNetUnfolder]: 0/111 cut-off events. [2022-11-16 12:08:54,838 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:08:54,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 111 events. 0/111 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-16 12:08:54,840 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 6 selfloop transitions, 1 changer transitions 0/111 dead transitions. [2022-11-16 12:08:54,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 242 flow [2022-11-16 12:08:54,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:08:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:08:54,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2022-11-16 12:08:54,847 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9396551724137931 [2022-11-16 12:08:54,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2022-11-16 12:08:54,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2022-11-16 12:08:54,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:54,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2022-11-16 12:08:54,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,855 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 327 transitions. [2022-11-16 12:08:54,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 242 flow [2022-11-16 12:08:54,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:08:54,861 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 226 flow [2022-11-16 12:08:54,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2022-11-16 12:08:54,863 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2022-11-16 12:08:54,863 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 226 flow [2022-11-16 12:08:54,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:54,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:54,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:08:54,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1890980617, now seen corresponding path program 1 times [2022-11-16 12:08:54,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:54,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437723223] [2022-11-16 12:08:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:54,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:54,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437723223] [2022-11-16 12:08:54,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437723223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:54,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:54,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:08:54,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896670660] [2022-11-16 12:08:54,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:54,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:08:54,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:54,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:08:54,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:08:54,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 116 [2022-11-16 12:08:54,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:54,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:54,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 116 [2022-11-16 12:08:54,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:55,005 INFO L130 PetriNetUnfolder]: 4/188 cut-off events. [2022-11-16 12:08:55,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:08:55,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 188 events. 4/188 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 479 event pairs, 2 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 159. Up to 12 conditions per place. [2022-11-16 12:08:55,007 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 7 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-11-16 12:08:55,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 244 flow [2022-11-16 12:08:55,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:08:55,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:08:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 329 transitions. [2022-11-16 12:08:55,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9454022988505747 [2022-11-16 12:08:55,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 329 transitions. [2022-11-16 12:08:55,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 329 transitions. [2022-11-16 12:08:55,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:55,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 329 transitions. [2022-11-16 12:08:55,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:55,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:55,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:55,014 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 226 flow. Second operand 3 states and 329 transitions. [2022-11-16 12:08:55,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 244 flow [2022-11-16 12:08:55,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 243 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:08:55,018 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 235 flow [2022-11-16 12:08:55,019 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=116, PETRI_TRANSITIONS=111} [2022-11-16 12:08:55,020 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2022-11-16 12:08:55,020 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 235 flow [2022-11-16 12:08:55,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:55,021 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:55,021 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:55,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:08:55,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:55,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1738579993, now seen corresponding path program 1 times [2022-11-16 12:08:55,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:55,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402828693] [2022-11-16 12:08:55,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:55,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:55,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:55,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402828693] [2022-11-16 12:08:55,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402828693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:55,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:55,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:08:55,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628308196] [2022-11-16 12:08:55,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:55,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:08:55,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:55,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:08:55,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:08:55,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 116 [2022-11-16 12:08:55,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 111 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:55,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:55,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 116 [2022-11-16 12:08:55,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:56,267 INFO L130 PetriNetUnfolder]: 290/919 cut-off events. [2022-11-16 12:08:56,268 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:08:56,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 919 events. 290/919 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4998 event pairs, 130 based on Foata normal form. 0/818 useless extension candidates. Maximal degree in co-relation 1509. Up to 437 conditions per place. [2022-11-16 12:08:56,281 INFO L137 encePairwiseOnDemand]: 100/116 looper letters, 62 selfloop transitions, 41 changer transitions 0/183 dead transitions. [2022-11-16 12:08:56,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 183 transitions, 585 flow [2022-11-16 12:08:56,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:08:56,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:08:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 614 transitions. [2022-11-16 12:08:56,284 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.882183908045977 [2022-11-16 12:08:56,284 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 614 transitions. [2022-11-16 12:08:56,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 614 transitions. [2022-11-16 12:08:56,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:56,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 614 transitions. [2022-11-16 12:08:56,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.33333333333333) internal successors, (614), 6 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:56,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:56,289 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:56,289 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 235 flow. Second operand 6 states and 614 transitions. [2022-11-16 12:08:56,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 183 transitions, 585 flow [2022-11-16 12:08:56,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 183 transitions, 585 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:08:56,297 INFO L231 Difference]: Finished difference. Result has 125 places, 153 transitions, 493 flow [2022-11-16 12:08:56,297 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=493, PETRI_PLACES=125, PETRI_TRANSITIONS=153} [2022-11-16 12:08:56,300 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 6 predicate places. [2022-11-16 12:08:56,301 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 153 transitions, 493 flow [2022-11-16 12:08:56,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:56,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:56,302 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:56,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:08:56,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:56,303 INFO L85 PathProgramCache]: Analyzing trace with hash 296041528, now seen corresponding path program 1 times [2022-11-16 12:08:56,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:56,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887105106] [2022-11-16 12:08:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:56,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:56,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:56,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887105106] [2022-11-16 12:08:56,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887105106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:56,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:56,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:08:56,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113977433] [2022-11-16 12:08:56,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:56,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:08:56,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:56,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:08:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:08:56,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2022-11-16 12:08:56,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 153 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:56,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:56,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2022-11-16 12:08:56,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:57,378 INFO L130 PetriNetUnfolder]: 448/1422 cut-off events. [2022-11-16 12:08:57,378 INFO L131 PetriNetUnfolder]: For 382/396 co-relation queries the response was YES. [2022-11-16 12:08:57,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3275 conditions, 1422 events. 448/1422 cut-off events. For 382/396 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9176 event pairs, 34 based on Foata normal form. 24/1363 useless extension candidates. Maximal degree in co-relation 3220. Up to 453 conditions per place. [2022-11-16 12:08:57,388 INFO L137 encePairwiseOnDemand]: 101/116 looper letters, 129 selfloop transitions, 48 changer transitions 0/263 dead transitions. [2022-11-16 12:08:57,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 263 transitions, 1242 flow [2022-11-16 12:08:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:08:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:08:57,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 644 transitions. [2022-11-16 12:08:57,391 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2022-11-16 12:08:57,391 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 644 transitions. [2022-11-16 12:08:57,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 644 transitions. [2022-11-16 12:08:57,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:57,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 644 transitions. [2022-11-16 12:08:57,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.33333333333333) internal successors, (644), 6 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,395 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,395 INFO L175 Difference]: Start difference. First operand has 125 places, 153 transitions, 493 flow. Second operand 6 states and 644 transitions. [2022-11-16 12:08:57,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 263 transitions, 1242 flow [2022-11-16 12:08:57,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 263 transitions, 1242 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:08:57,405 INFO L231 Difference]: Finished difference. Result has 135 places, 199 transitions, 899 flow [2022-11-16 12:08:57,405 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=899, PETRI_PLACES=135, PETRI_TRANSITIONS=199} [2022-11-16 12:08:57,406 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 16 predicate places. [2022-11-16 12:08:57,406 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 199 transitions, 899 flow [2022-11-16 12:08:57,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:57,407 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:57,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:08:57,407 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:57,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:57,408 INFO L85 PathProgramCache]: Analyzing trace with hash 932241775, now seen corresponding path program 1 times [2022-11-16 12:08:57,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:57,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552086075] [2022-11-16 12:08:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:57,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:57,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:57,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:57,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552086075] [2022-11-16 12:08:57,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552086075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:57,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:57,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:08:57,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925468997] [2022-11-16 12:08:57,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:57,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:08:57,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:57,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:08:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:08:57,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 116 [2022-11-16 12:08:57,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 199 transitions, 899 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:57,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 116 [2022-11-16 12:08:57,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:57,631 INFO L130 PetriNetUnfolder]: 39/302 cut-off events. [2022-11-16 12:08:57,631 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-16 12:08:57,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 302 events. 39/302 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 992 event pairs, 4 based on Foata normal form. 2/290 useless extension candidates. Maximal degree in co-relation 501. Up to 64 conditions per place. [2022-11-16 12:08:57,633 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 7 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2022-11-16 12:08:57,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 447 flow [2022-11-16 12:08:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:08:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:08:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2022-11-16 12:08:57,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9425287356321839 [2022-11-16 12:08:57,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2022-11-16 12:08:57,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2022-11-16 12:08:57,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:57,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2022-11-16 12:08:57,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,638 INFO L175 Difference]: Start difference. First operand has 135 places, 199 transitions, 899 flow. Second operand 3 states and 328 transitions. [2022-11-16 12:08:57,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 447 flow [2022-11-16 12:08:57,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 397 flow, removed 17 selfloop flow, removed 8 redundant places. [2022-11-16 12:08:57,646 INFO L231 Difference]: Finished difference. Result has 128 places, 132 transitions, 383 flow [2022-11-16 12:08:57,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=128, PETRI_TRANSITIONS=132} [2022-11-16 12:08:57,648 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 9 predicate places. [2022-11-16 12:08:57,648 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 132 transitions, 383 flow [2022-11-16 12:08:57,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:57,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:57,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:57,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:08:57,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:57,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash -332557911, now seen corresponding path program 1 times [2022-11-16 12:08:57,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:57,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725486961] [2022-11-16 12:08:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:57,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:58,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:58,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725486961] [2022-11-16 12:08:58,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725486961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:58,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:58,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:08:58,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934539799] [2022-11-16 12:08:58,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:58,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:08:58,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:58,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:08:58,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:08:58,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2022-11-16 12:08:58,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:58,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:58,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2022-11-16 12:08:58,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:58,402 INFO L130 PetriNetUnfolder]: 157/674 cut-off events. [2022-11-16 12:08:58,402 INFO L131 PetriNetUnfolder]: For 144/168 co-relation queries the response was YES. [2022-11-16 12:08:58,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 674 events. 157/674 cut-off events. For 144/168 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3511 event pairs, 22 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 1334. Up to 262 conditions per place. [2022-11-16 12:08:58,406 INFO L137 encePairwiseOnDemand]: 102/116 looper letters, 57 selfloop transitions, 47 changer transitions 5/191 dead transitions. [2022-11-16 12:08:58,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 191 transitions, 810 flow [2022-11-16 12:08:58,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:08:58,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:08:58,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 603 transitions. [2022-11-16 12:08:58,409 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8663793103448276 [2022-11-16 12:08:58,409 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 603 transitions. [2022-11-16 12:08:58,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 603 transitions. [2022-11-16 12:08:58,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:58,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 603 transitions. [2022-11-16 12:08:58,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.5) internal successors, (603), 6 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:58,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:58,413 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:58,413 INFO L175 Difference]: Start difference. First operand has 128 places, 132 transitions, 383 flow. Second operand 6 states and 603 transitions. [2022-11-16 12:08:58,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 191 transitions, 810 flow [2022-11-16 12:08:58,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 191 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:08:58,419 INFO L231 Difference]: Finished difference. Result has 137 places, 173 transitions, 756 flow [2022-11-16 12:08:58,419 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=756, PETRI_PLACES=137, PETRI_TRANSITIONS=173} [2022-11-16 12:08:58,420 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 18 predicate places. [2022-11-16 12:08:58,420 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 173 transitions, 756 flow [2022-11-16 12:08:58,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:58,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:58,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:58,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:08:58,421 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1465026081, now seen corresponding path program 1 times [2022-11-16 12:08:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:58,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475473374] [2022-11-16 12:08:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:58,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:58,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475473374] [2022-11-16 12:08:58,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475473374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:58,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:58,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:08:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216793822] [2022-11-16 12:08:58,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:58,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:08:58,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:08:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:08:58,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 116 [2022-11-16 12:08:58,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 173 transitions, 756 flow. Second operand has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:58,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:58,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 116 [2022-11-16 12:08:58,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:08:59,060 INFO L130 PetriNetUnfolder]: 202/780 cut-off events. [2022-11-16 12:08:59,060 INFO L131 PetriNetUnfolder]: For 562/634 co-relation queries the response was YES. [2022-11-16 12:08:59,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 780 events. 202/780 cut-off events. For 562/634 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4176 event pairs, 29 based on Foata normal form. 0/767 useless extension candidates. Maximal degree in co-relation 2033. Up to 401 conditions per place. [2022-11-16 12:08:59,066 INFO L137 encePairwiseOnDemand]: 105/116 looper letters, 88 selfloop transitions, 26 changer transitions 16/209 dead transitions. [2022-11-16 12:08:59,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 209 transitions, 1220 flow [2022-11-16 12:08:59,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:08:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:08:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2022-11-16 12:08:59,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8189655172413793 [2022-11-16 12:08:59,069 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 570 transitions. [2022-11-16 12:08:59,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 570 transitions. [2022-11-16 12:08:59,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:08:59,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 570 transitions. [2022-11-16 12:08:59,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.0) internal successors, (570), 6 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:59,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:59,076 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 116.0) internal successors, (812), 7 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:59,077 INFO L175 Difference]: Start difference. First operand has 137 places, 173 transitions, 756 flow. Second operand 6 states and 570 transitions. [2022-11-16 12:08:59,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 209 transitions, 1220 flow [2022-11-16 12:08:59,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 209 transitions, 1202 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 12:08:59,092 INFO L231 Difference]: Finished difference. Result has 147 places, 189 transitions, 952 flow [2022-11-16 12:08:59,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=952, PETRI_PLACES=147, PETRI_TRANSITIONS=189} [2022-11-16 12:08:59,095 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 28 predicate places. [2022-11-16 12:08:59,095 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 189 transitions, 952 flow [2022-11-16 12:08:59,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:59,096 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:08:59,096 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:59,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:08:59,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:08:59,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:59,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1903960517, now seen corresponding path program 1 times [2022-11-16 12:08:59,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:59,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957908217] [2022-11-16 12:08:59,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:59,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:59,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:08:59,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:59,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957908217] [2022-11-16 12:08:59,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957908217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:59,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:59,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:08:59,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70190931] [2022-11-16 12:08:59,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:59,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:08:59,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:59,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:08:59,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:08:59,704 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 116 [2022-11-16 12:08:59,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 189 transitions, 952 flow. Second operand has 12 states, 12 states have (on average 70.66666666666667) internal successors, (848), 12 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:08:59,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:08:59,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 116 [2022-11-16 12:08:59,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:00,413 INFO L130 PetriNetUnfolder]: 234/901 cut-off events. [2022-11-16 12:09:00,413 INFO L131 PetriNetUnfolder]: For 780/784 co-relation queries the response was YES. [2022-11-16 12:09:00,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2625 conditions, 901 events. 234/901 cut-off events. For 780/784 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5307 event pairs, 35 based on Foata normal form. 13/904 useless extension candidates. Maximal degree in co-relation 2545. Up to 292 conditions per place. [2022-11-16 12:09:00,420 INFO L137 encePairwiseOnDemand]: 102/116 looper letters, 130 selfloop transitions, 33 changer transitions 35/260 dead transitions. [2022-11-16 12:09:00,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 260 transitions, 1811 flow [2022-11-16 12:09:00,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:09:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:09:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1319 transitions. [2022-11-16 12:09:00,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6317049808429118 [2022-11-16 12:09:00,424 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1319 transitions. [2022-11-16 12:09:00,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1319 transitions. [2022-11-16 12:09:00,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:00,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1319 transitions. [2022-11-16 12:09:00,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 73.27777777777777) internal successors, (1319), 18 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:00,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 116.0) internal successors, (2204), 19 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:00,435 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 116.0) internal successors, (2204), 19 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:00,436 INFO L175 Difference]: Start difference. First operand has 147 places, 189 transitions, 952 flow. Second operand 18 states and 1319 transitions. [2022-11-16 12:09:00,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 260 transitions, 1811 flow [2022-11-16 12:09:00,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 260 transitions, 1733 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-11-16 12:09:00,453 INFO L231 Difference]: Finished difference. Result has 159 places, 188 transitions, 941 flow [2022-11-16 12:09:00,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=941, PETRI_PLACES=159, PETRI_TRANSITIONS=188} [2022-11-16 12:09:00,455 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 40 predicate places. [2022-11-16 12:09:00,455 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 188 transitions, 941 flow [2022-11-16 12:09:00,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 70.66666666666667) internal successors, (848), 12 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:00,456 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:00,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:00,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:09:00,457 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:09:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:00,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1747476389, now seen corresponding path program 1 times [2022-11-16 12:09:00,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:00,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965983747] [2022-11-16 12:09:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:00,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:00,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:00,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965983747] [2022-11-16 12:09:00,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965983747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:00,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:00,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:09:00,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976345299] [2022-11-16 12:09:00,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:00,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:09:00,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:09:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:09:00,991 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 116 [2022-11-16 12:09:00,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 188 transitions, 941 flow. Second operand has 12 states, 12 states have (on average 72.58333333333333) internal successors, (871), 12 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:00,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:09:00,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 116 [2022-11-16 12:09:00,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:09:01,658 INFO L130 PetriNetUnfolder]: 195/714 cut-off events. [2022-11-16 12:09:01,658 INFO L131 PetriNetUnfolder]: For 667/672 co-relation queries the response was YES. [2022-11-16 12:09:01,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2298 conditions, 714 events. 195/714 cut-off events. For 667/672 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3701 event pairs, 18 based on Foata normal form. 13/726 useless extension candidates. Maximal degree in co-relation 2214. Up to 167 conditions per place. [2022-11-16 12:09:01,665 INFO L137 encePairwiseOnDemand]: 98/116 looper letters, 115 selfloop transitions, 63 changer transitions 16/259 dead transitions. [2022-11-16 12:09:01,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 259 transitions, 1773 flow [2022-11-16 12:09:01,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:09:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 12:09:01,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1165 transitions. [2022-11-16 12:09:01,669 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2022-11-16 12:09:01,669 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1165 transitions. [2022-11-16 12:09:01,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1165 transitions. [2022-11-16 12:09:01,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:09:01,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1165 transitions. [2022-11-16 12:09:01,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.66666666666667) internal successors, (1165), 15 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:01,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 116.0) internal successors, (1856), 16 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:01,677 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 116.0) internal successors, (1856), 16 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:01,677 INFO L175 Difference]: Start difference. First operand has 159 places, 188 transitions, 941 flow. Second operand 15 states and 1165 transitions. [2022-11-16 12:09:01,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 259 transitions, 1773 flow [2022-11-16 12:09:01,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 259 transitions, 1677 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-16 12:09:01,693 INFO L231 Difference]: Finished difference. Result has 163 places, 200 transitions, 1218 flow [2022-11-16 12:09:01,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1218, PETRI_PLACES=163, PETRI_TRANSITIONS=200} [2022-11-16 12:09:01,694 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 44 predicate places. [2022-11-16 12:09:01,694 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 200 transitions, 1218 flow [2022-11-16 12:09:01,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 72.58333333333333) internal successors, (871), 12 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:01,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:09:01,695 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:01,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:09:01,696 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2022-11-16 12:09:01,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:01,696 INFO L85 PathProgramCache]: Analyzing trace with hash -465970095, now seen corresponding path program 1 times [2022-11-16 12:09:01,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:01,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643345160] [2022-11-16 12:09:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:01,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:01,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:09:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:09:01,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:09:01,782 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:09:01,783 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-16 12:09:01,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-16 12:09:01,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-16 12:09:01,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-16 12:09:01,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-16 12:09:01,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-16 12:09:01,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-16 12:09:01,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-16 12:09:01,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-16 12:09:01,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-16 12:09:01,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-11-16 12:09:01,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-11-16 12:09:01,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-16 12:09:01,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-16 12:09:01,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-16 12:09:01,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:09:01,788 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:01,796 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:09:01,796 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:09:01,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:09:01 BasicIcfg [2022-11-16 12:09:01,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:09:01,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:09:01,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:09:01,851 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:09:01,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:53" (3/4) ... [2022-11-16 12:09:01,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:09:01,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:09:01,855 INFO L158 Benchmark]: Toolchain (without parser) took 10321.52ms. Allocated memory was 119.5MB in the beginning and 239.1MB in the end (delta: 119.5MB). Free memory was 82.6MB in the beginning and 191.3MB in the end (delta: -108.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-11-16 12:09:01,855 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:09:01,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 932.87ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 65.2MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:09:01,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.27ms. Allocated memory is still 119.5MB. Free memory was 65.2MB in the beginning and 62.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:09:01,856 INFO L158 Benchmark]: Boogie Preprocessor took 35.13ms. Allocated memory is still 119.5MB. Free memory was 62.1MB in the beginning and 60.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:09:01,856 INFO L158 Benchmark]: RCFGBuilder took 662.89ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 60.5MB in the beginning and 138.5MB in the end (delta: -78.0MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-11-16 12:09:01,857 INFO L158 Benchmark]: TraceAbstraction took 8612.81ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 137.4MB in the beginning and 192.4MB in the end (delta: -55.0MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-16 12:09:01,857 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 239.1MB. Free memory was 192.4MB in the beginning and 191.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:09:01,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 79.7MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 932.87ms. Allocated memory is still 119.5MB. Free memory was 82.6MB in the beginning and 65.2MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.27ms. Allocated memory is still 119.5MB. Free memory was 65.2MB in the beginning and 62.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.13ms. Allocated memory is still 119.5MB. Free memory was 62.1MB in the beginning and 60.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 662.89ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 60.5MB in the beginning and 138.5MB in the end (delta: -78.0MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8612.81ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 137.4MB in the beginning and 192.4MB in the end (delta: -55.0MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 239.1MB. Free memory was 192.4MB in the beginning and 191.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={3:0}] [L1223] 0 int *x; VAL [m={3:0}, x={0:0}] [L1224] 0 int *y; VAL [m={3:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [id={5:0}, m={3:0}, x={0:0}, y={0:0}] [L1235] 0 int *z; VAL [id={5:0}, m={3:0}, x={0:0}, y={0:0}] [L1236] 0 x = malloc(sizeof(int)) VAL [id={5:0}, m={3:0}, malloc(sizeof(int))={-2:0}, x={-2:0}, x = malloc(sizeof(int))=104, y={0:0}] [L1237] 0 y = malloc(sizeof(int)) VAL [id={5:0}, m={3:0}, malloc(sizeof(int))={-3:0}, x={-2:0}, y={-3:0}, y = malloc(sizeof(int))=106] [L1238] 0 z = y VAL [id={5:0}, m={3:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 \read(*x) VAL [\read(*x)=101, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] 0 printf("%d\n",*x) VAL [\read(*x)=101, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [*x = 3=105, arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1243] EXPR 0 \read(*z) VAL [*x = 3=105, \read(*z)=103, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={3:0}, x={-2:0}, y={-3:0}] [L1243] 0 printf("%d\n",*z) VAL [*y = 8=102, \read(*z)=103, arg={0:0}, arg={0:0}, id={5:0}, m={3:0}, x={-2:0}, y={-3:0}, z={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: y = malloc(sizeof(int)) [1237] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1236] * C: *y = 8 [1229] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1769 IncrementalHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 153 mSDtfsCounter, 1769 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1218occurred in iteration=11, InterpolantAutomatonStates: 72, 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, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 664 ConstructedInterpolants, 0 QuantifiedInterpolants, 1685 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:09:01,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28c75c25-eaa9-40fc-9577-96654327ccf1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE