./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/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_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc --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-5e519f3 [2022-11-02 21:02:13,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:02:13,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:02:13,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:02:13,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:02:13,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:02:13,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:02:13,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:02:13,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:02:13,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:02:13,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:02:13,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:02:13,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:02:13,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:02:13,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:02:13,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:02:13,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:02:13,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:02:13,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:02:13,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:02:13,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:02:13,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:02:13,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:02:13,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:02:13,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:02:13,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:02:13,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:02:13,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:02:13,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:02:13,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:02:13,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:02:13,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:02:13,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:02:13,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:02:13,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:02:13,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:02:13,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:02:13,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:02:13,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:02:13,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:02:13,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:02:13,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:02:13,194 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:02:13,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:02:13,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:02:13,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:02:13,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:02:13,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:02:13,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:02:13,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:02:13,199 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:02:13,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:02:13,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:02:13,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:02:13,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:02:13,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:02:13,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:02:13,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:02:13,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:02:13,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:02:13,203 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:02:13,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:02:13,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:02:13,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:02:13,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:02:13,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:02:13,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:02:13,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:02:13,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:13,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:02:13,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:02:13,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:02:13,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:02:13,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:02:13,206 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:02:13,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:02:13,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:02:13,207 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_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2022-11-02 21:02:13,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:02:13,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:02:13,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:02:13,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:02:13,562 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:02:13,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2022-11-02 21:02:13,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/data/fc27ffe77/f5be9d5864cf4cfc8bc520ce2956c9c8/FLAG95b5d3a14 [2022-11-02 21:02:14,227 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:02:14,228 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2022-11-02 21:02:14,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/data/fc27ffe77/f5be9d5864cf4cfc8bc520ce2956c9c8/FLAG95b5d3a14 [2022-11-02 21:02:14,479 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/data/fc27ffe77/f5be9d5864cf4cfc8bc520ce2956c9c8 [2022-11-02 21:02:14,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:02:14,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:02:14,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:14,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:02:14,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:02:14,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7674f672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:14, skipping insertion in model container [2022-11-02 21:02:14,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:02:14" (1/1) ... [2022-11-02 21:02:14,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:02:14,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:02:15,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:15,315 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:02:15,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:02:15,445 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:02:15,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15 WrapperNode [2022-11-02 21:02:15,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:02:15,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:15,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:02:15,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:02:15,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,537 INFO L138 Inliner]: procedures = 365, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2022-11-02 21:02:15,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:02:15,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:02:15,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:02:15,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:02:15,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,595 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:02:15,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:02:15,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:02:15,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:02:15,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (1/1) ... [2022-11-02 21:02:15,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:02:15,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:02:15,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:02:15,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:02:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:02:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:02:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:02:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:02:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:02:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:02:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:02:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:02:15,694 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:02:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:02:15,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:02:15,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:02:15,697 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:02:15,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:02:15,884 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:02:16,170 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:02:16,178 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:02:16,179 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:02:16,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:16 BoogieIcfgContainer [2022-11-02 21:02:16,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:02:16,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:02:16,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:02:16,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:02:16,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:02:14" (1/3) ... [2022-11-02 21:02:16,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2382d189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:02:16, skipping insertion in model container [2022-11-02 21:02:16,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:02:15" (2/3) ... [2022-11-02 21:02:16,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2382d189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:02:16, skipping insertion in model container [2022-11-02 21:02:16,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:16" (3/3) ... [2022-11-02 21:02:16,210 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2022-11-02 21:02:16,219 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:02:16,231 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:02:16,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-02 21:02:16,231 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:02:16,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:02:16,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 116 transitions, 237 flow [2022-11-02 21:02:16,434 INFO L130 PetriNetUnfolder]: 0/115 cut-off events. [2022-11-02 21:02:16,434 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:16,436 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. [2022-11-02 21:02:16,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 116 transitions, 237 flow [2022-11-02 21:02:16,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 115 transitions, 233 flow [2022-11-02 21:02:16,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:02:16,459 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;@69aa62cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:02:16,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-02 21:02:16,478 INFO L130 PetriNetUnfolder]: 0/33 cut-off events. [2022-11-02 21:02:16,481 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:16,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:16,482 INFO L208 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] [2022-11-02 21:02:16,483 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)] === [2022-11-02 21:02:16,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:16,493 INFO L85 PathProgramCache]: Analyzing trace with hash -119326737, now seen corresponding path program 1 times [2022-11-02 21:02:16,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:16,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495567281] [2022-11-02 21:02:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:16,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:16,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:16,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495567281] [2022-11-02 21:02:16,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495567281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:16,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:16,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:16,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387360255] [2022-11-02 21:02:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:16,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:16,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:16,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:16,913 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 116 [2022-11-02 21:02:16,920 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) [2022-11-02 21:02:16,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:16,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 116 [2022-11-02 21:02:16,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,028 INFO L130 PetriNetUnfolder]: 9/228 cut-off events. [2022-11-02 21:02:17,028 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:02:17,030 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 723 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. [2022-11-02 21:02:17,032 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 10 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2022-11-02 21:02:17,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 114 transitions, 255 flow [2022-11-02 21:02:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-11-02 21:02:17,047 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2022-11-02 21:02:17,048 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-11-02 21:02:17,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-11-02 21:02:17,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-11-02 21:02:17,057 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) [2022-11-02 21:02:17,062 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) [2022-11-02 21:02:17,063 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) [2022-11-02 21:02:17,065 INFO L175 Difference]: Start difference. First operand has 119 places, 115 transitions, 233 flow. Second operand 3 states and 322 transitions. [2022-11-02 21:02:17,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 114 transitions, 255 flow [2022-11-02 21:02:17,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 114 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:02:17,072 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 234 flow [2022-11-02 21:02:17,075 INFO L270 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} [2022-11-02 21:02:17,078 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 0 predicate places. [2022-11-02 21:02:17,079 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 234 flow [2022-11-02 21:02:17,079 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) [2022-11-02 21:02:17,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,080 INFO L208 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] [2022-11-02 21:02:17,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:02:17,080 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)] === [2022-11-02 21:02:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash 540063600, now seen corresponding path program 1 times [2022-11-02 21:02:17,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24667083] [2022-11-02 21:02:17,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:17,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:17,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:17,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24667083] [2022-11-02 21:02:17,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24667083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:17,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:17,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:17,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119153489] [2022-11-02 21:02:17,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:17,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:17,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:17,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:17,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:17,218 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 116 [2022-11-02 21:02:17,219 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) [2022-11-02 21:02:17,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:17,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 116 [2022-11-02 21:02:17,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,294 INFO L130 PetriNetUnfolder]: 0/113 cut-off events. [2022-11-02 21:02:17,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:17,301 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 78 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. [2022-11-02 21:02:17,303 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 10 selfloop transitions, 2 changer transitions 0/113 dead transitions. [2022-11-02 21:02:17,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 113 transitions, 256 flow [2022-11-02 21:02:17,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:17,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:17,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2022-11-02 21:02:17,310 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2022-11-02 21:02:17,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 322 transitions. [2022-11-02 21:02:17,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 322 transitions. [2022-11-02 21:02:17,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 322 transitions. [2022-11-02 21:02:17,313 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) [2022-11-02 21:02:17,318 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) [2022-11-02 21:02:17,318 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) [2022-11-02 21:02:17,319 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 234 flow. Second operand 3 states and 322 transitions. [2022-11-02 21:02:17,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 113 transitions, 256 flow [2022-11-02 21:02:17,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 113 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:17,325 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 232 flow [2022-11-02 21:02:17,325 INFO L270 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} [2022-11-02 21:02:17,326 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -1 predicate places. [2022-11-02 21:02:17,326 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 232 flow [2022-11-02 21:02:17,327 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) [2022-11-02 21:02:17,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,328 INFO L208 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] [2022-11-02 21:02:17,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:02:17,328 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)] === [2022-11-02 21:02:17,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1583841168, now seen corresponding path program 1 times [2022-11-02 21:02:17,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085544749] [2022-11-02 21:02:17,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:17,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:17,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:17,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085544749] [2022-11-02 21:02:17,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085544749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:17,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:17,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:17,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287508624] [2022-11-02 21:02:17,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:17,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:17,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:17,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:17,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:17,402 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 116 [2022-11-02 21:02:17,403 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) [2022-11-02 21:02:17,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:17,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 116 [2022-11-02 21:02:17,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,435 INFO L130 PetriNetUnfolder]: 0/111 cut-off events. [2022-11-02 21:02:17,435 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:02:17,435 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. [2022-11-02 21:02:17,436 INFO L137 encePairwiseOnDemand]: 113/116 looper letters, 6 selfloop transitions, 1 changer transitions 0/111 dead transitions. [2022-11-02 21:02:17,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 242 flow [2022-11-02 21:02:17,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2022-11-02 21:02:17,438 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9396551724137931 [2022-11-02 21:02:17,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2022-11-02 21:02:17,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2022-11-02 21:02:17,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2022-11-02 21:02:17,440 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) [2022-11-02 21:02:17,441 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) [2022-11-02 21:02:17,441 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) [2022-11-02 21:02:17,441 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 232 flow. Second operand 3 states and 327 transitions. [2022-11-02 21:02:17,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 242 flow [2022-11-02 21:02:17,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 111 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:02:17,445 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 226 flow [2022-11-02 21:02:17,445 INFO L270 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} [2022-11-02 21:02:17,446 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2022-11-02 21:02:17,446 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 226 flow [2022-11-02 21:02:17,447 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) [2022-11-02 21:02:17,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,447 INFO L208 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] [2022-11-02 21:02:17,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:02:17,448 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)] === [2022-11-02 21:02:17,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1451328407, now seen corresponding path program 1 times [2022-11-02 21:02:17,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175368621] [2022-11-02 21:02:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:17,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:17,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175368621] [2022-11-02 21:02:17,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175368621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:17,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:17,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:02:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417758835] [2022-11-02 21:02:17,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:17,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:17,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:17,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:17,535 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 116 [2022-11-02 21:02:17,535 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) [2022-11-02 21:02:17,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:17,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 116 [2022-11-02 21:02:17,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:17,588 INFO L130 PetriNetUnfolder]: 4/188 cut-off events. [2022-11-02 21:02:17,589 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:17,591 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 482 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. [2022-11-02 21:02:17,592 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 7 selfloop transitions, 2 changer transitions 0/111 dead transitions. [2022-11-02 21:02:17,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 244 flow [2022-11-02 21:02:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 329 transitions. [2022-11-02 21:02:17,594 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9454022988505747 [2022-11-02 21:02:17,594 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 329 transitions. [2022-11-02 21:02:17,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 329 transitions. [2022-11-02 21:02:17,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:17,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 329 transitions. [2022-11-02 21:02:17,596 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) [2022-11-02 21:02:17,597 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) [2022-11-02 21:02:17,598 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) [2022-11-02 21:02:17,601 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 226 flow. Second operand 3 states and 329 transitions. [2022-11-02 21:02:17,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 244 flow [2022-11-02 21:02:17,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 111 transitions, 243 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:02:17,605 INFO L231 Difference]: Finished difference. Result has 116 places, 111 transitions, 235 flow [2022-11-02 21:02:17,605 INFO L270 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} [2022-11-02 21:02:17,608 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2022-11-02 21:02:17,608 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 111 transitions, 235 flow [2022-11-02 21:02:17,608 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) [2022-11-02 21:02:17,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:17,610 INFO L208 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] [2022-11-02 21:02:17,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:02:17,611 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)] === [2022-11-02 21:02:17,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash 893594727, now seen corresponding path program 1 times [2022-11-02 21:02:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:17,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814308513] [2022-11-02 21:02:17,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:17,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:18,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:18,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814308513] [2022-11-02 21:02:18,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814308513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:18,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:18,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:02:18,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030952680] [2022-11-02 21:02:18,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:18,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:02:18,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:18,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:02:18,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:02:18,180 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 116 [2022-11-02 21:02:18,181 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) [2022-11-02 21:02:18,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:18,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 116 [2022-11-02 21:02:18,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:18,591 INFO L130 PetriNetUnfolder]: 290/919 cut-off events. [2022-11-02 21:02:18,592 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:02:18,596 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 4954 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. [2022-11-02 21:02:18,603 INFO L137 encePairwiseOnDemand]: 100/116 looper letters, 62 selfloop transitions, 41 changer transitions 0/183 dead transitions. [2022-11-02 21:02:18,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 183 transitions, 585 flow [2022-11-02 21:02:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:02:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:02:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 614 transitions. [2022-11-02 21:02:18,605 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.882183908045977 [2022-11-02 21:02:18,606 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 614 transitions. [2022-11-02 21:02:18,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 614 transitions. [2022-11-02 21:02:18,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:18,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 614 transitions. [2022-11-02 21:02:18,608 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) [2022-11-02 21:02:18,610 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) [2022-11-02 21:02:18,610 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) [2022-11-02 21:02:18,611 INFO L175 Difference]: Start difference. First operand has 116 places, 111 transitions, 235 flow. Second operand 6 states and 614 transitions. [2022-11-02 21:02:18,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 183 transitions, 585 flow [2022-11-02 21:02:18,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 183 transitions, 585 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:02:18,617 INFO L231 Difference]: Finished difference. Result has 125 places, 153 transitions, 493 flow [2022-11-02 21:02:18,618 INFO L270 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} [2022-11-02 21:02:18,622 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 6 predicate places. [2022-11-02 21:02:18,622 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 153 transitions, 493 flow [2022-11-02 21:02:18,622 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) [2022-11-02 21:02:18,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:18,623 INFO L208 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] [2022-11-02 21:02:18,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:02:18,624 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)] === [2022-11-02 21:02:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:18,627 INFO L85 PathProgramCache]: Analyzing trace with hash -487085527, now seen corresponding path program 1 times [2022-11-02 21:02:18,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:18,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764778793] [2022-11-02 21:02:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:18,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:19,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:19,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:19,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764778793] [2022-11-02 21:02:19,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764778793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:19,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:19,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:02:19,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769999026] [2022-11-02 21:02:19,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:19,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:02:19,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:19,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:02:19,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:02:19,105 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2022-11-02 21:02:19,107 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) [2022-11-02 21:02:19,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:19,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2022-11-02 21:02:19,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:19,690 INFO L130 PetriNetUnfolder]: 448/1422 cut-off events. [2022-11-02 21:02:19,690 INFO L131 PetriNetUnfolder]: For 382/396 co-relation queries the response was YES. [2022-11-02 21:02:19,694 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 9198 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. [2022-11-02 21:02:19,701 INFO L137 encePairwiseOnDemand]: 101/116 looper letters, 129 selfloop transitions, 48 changer transitions 0/263 dead transitions. [2022-11-02 21:02:19,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 263 transitions, 1242 flow [2022-11-02 21:02:19,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:02:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:02:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 644 transitions. [2022-11-02 21:02:19,703 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9252873563218391 [2022-11-02 21:02:19,704 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 644 transitions. [2022-11-02 21:02:19,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 644 transitions. [2022-11-02 21:02:19,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:19,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 644 transitions. [2022-11-02 21:02:19,706 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) [2022-11-02 21:02:19,708 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) [2022-11-02 21:02:19,709 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) [2022-11-02 21:02:19,709 INFO L175 Difference]: Start difference. First operand has 125 places, 153 transitions, 493 flow. Second operand 6 states and 644 transitions. [2022-11-02 21:02:19,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 263 transitions, 1242 flow [2022-11-02 21:02:19,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 263 transitions, 1242 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:02:19,721 INFO L231 Difference]: Finished difference. Result has 135 places, 199 transitions, 899 flow [2022-11-02 21:02:19,722 INFO L270 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} [2022-11-02 21:02:19,725 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 16 predicate places. [2022-11-02 21:02:19,725 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 199 transitions, 899 flow [2022-11-02 21:02:19,725 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) [2022-11-02 21:02:19,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:19,726 INFO L208 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] [2022-11-02 21:02:19,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:02:19,726 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)] === [2022-11-02 21:02:19,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:19,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1868029887, now seen corresponding path program 1 times [2022-11-02 21:02:19,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:19,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821578775] [2022-11-02 21:02:19,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:19,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:19,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:19,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821578775] [2022-11-02 21:02:19,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821578775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:19,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:19,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:02:19,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069090206] [2022-11-02 21:02:19,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:19,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:02:19,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:19,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:02:19,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:02:19,866 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 116 [2022-11-02 21:02:19,867 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) [2022-11-02 21:02:19,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:19,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 116 [2022-11-02 21:02:19,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:19,930 INFO L130 PetriNetUnfolder]: 39/302 cut-off events. [2022-11-02 21:02:19,931 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-11-02 21:02:19,932 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 987 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. [2022-11-02 21:02:19,933 INFO L137 encePairwiseOnDemand]: 112/116 looper letters, 7 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2022-11-02 21:02:19,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 447 flow [2022-11-02 21:02:19,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:02:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:02:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2022-11-02 21:02:19,935 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9425287356321839 [2022-11-02 21:02:19,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2022-11-02 21:02:19,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2022-11-02 21:02:19,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:19,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2022-11-02 21:02:19,937 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) [2022-11-02 21:02:19,938 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) [2022-11-02 21:02:19,938 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) [2022-11-02 21:02:19,938 INFO L175 Difference]: Start difference. First operand has 135 places, 199 transitions, 899 flow. Second operand 3 states and 328 transitions. [2022-11-02 21:02:19,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 447 flow [2022-11-02 21:02:19,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 397 flow, removed 17 selfloop flow, removed 8 redundant places. [2022-11-02 21:02:19,943 INFO L231 Difference]: Finished difference. Result has 128 places, 132 transitions, 383 flow [2022-11-02 21:02:19,944 INFO L270 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} [2022-11-02 21:02:19,944 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 9 predicate places. [2022-11-02 21:02:19,945 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 132 transitions, 383 flow [2022-11-02 21:02:19,945 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) [2022-11-02 21:02:19,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:19,945 INFO L208 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] [2022-11-02 21:02:19,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:02:19,946 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)] === [2022-11-02 21:02:19,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:19,947 INFO L85 PathProgramCache]: Analyzing trace with hash 527402681, now seen corresponding path program 1 times [2022-11-02 21:02:19,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:19,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333414719] [2022-11-02 21:02:19,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:19,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:20,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:20,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:20,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333414719] [2022-11-02 21:02:20,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333414719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:20,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:20,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:02:20,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206559405] [2022-11-02 21:02:20,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:20,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:02:20,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:20,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:02:20,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:02:20,296 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2022-11-02 21:02:20,298 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) [2022-11-02 21:02:20,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:20,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2022-11-02 21:02:20,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:20,653 INFO L130 PetriNetUnfolder]: 157/674 cut-off events. [2022-11-02 21:02:20,653 INFO L131 PetriNetUnfolder]: For 144/168 co-relation queries the response was YES. [2022-11-02 21:02:20,655 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 3533 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. [2022-11-02 21:02:20,658 INFO L137 encePairwiseOnDemand]: 102/116 looper letters, 57 selfloop transitions, 47 changer transitions 5/191 dead transitions. [2022-11-02 21:02:20,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 191 transitions, 810 flow [2022-11-02 21:02:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:02:20,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:02:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 603 transitions. [2022-11-02 21:02:20,661 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8663793103448276 [2022-11-02 21:02:20,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 603 transitions. [2022-11-02 21:02:20,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 603 transitions. [2022-11-02 21:02:20,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:20,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 603 transitions. [2022-11-02 21:02:20,663 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) [2022-11-02 21:02:20,665 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) [2022-11-02 21:02:20,665 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) [2022-11-02 21:02:20,666 INFO L175 Difference]: Start difference. First operand has 128 places, 132 transitions, 383 flow. Second operand 6 states and 603 transitions. [2022-11-02 21:02:20,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 191 transitions, 810 flow [2022-11-02 21:02:20,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 191 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:02:20,672 INFO L231 Difference]: Finished difference. Result has 137 places, 173 transitions, 756 flow [2022-11-02 21:02:20,673 INFO L270 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} [2022-11-02 21:02:20,675 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 18 predicate places. [2022-11-02 21:02:20,676 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 173 transitions, 756 flow [2022-11-02 21:02:20,676 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) [2022-11-02 21:02:20,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:20,676 INFO L208 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] [2022-11-02 21:02:20,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:02:20,677 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)] === [2022-11-02 21:02:20,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:20,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1019249491, now seen corresponding path program 1 times [2022-11-02 21:02:20,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:20,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313162472] [2022-11-02 21:02:20,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:20,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:21,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:21,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313162472] [2022-11-02 21:02:21,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313162472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:21,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:21,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:02:21,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743272146] [2022-11-02 21:02:21,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:21,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:02:21,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:21,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:02:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:02:21,062 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 116 [2022-11-02 21:02:21,063 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) [2022-11-02 21:02:21,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:21,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 116 [2022-11-02 21:02:21,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:21,347 INFO L130 PetriNetUnfolder]: 202/780 cut-off events. [2022-11-02 21:02:21,348 INFO L131 PetriNetUnfolder]: For 562/634 co-relation queries the response was YES. [2022-11-02 21:02:21,350 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 4179 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. [2022-11-02 21:02:21,354 INFO L137 encePairwiseOnDemand]: 105/116 looper letters, 88 selfloop transitions, 26 changer transitions 16/209 dead transitions. [2022-11-02 21:02:21,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 209 transitions, 1220 flow [2022-11-02 21:02:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:02:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:02:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 570 transitions. [2022-11-02 21:02:21,357 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8189655172413793 [2022-11-02 21:02:21,357 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 570 transitions. [2022-11-02 21:02:21,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 570 transitions. [2022-11-02 21:02:21,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:21,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 570 transitions. [2022-11-02 21:02:21,360 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) [2022-11-02 21:02:21,362 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) [2022-11-02 21:02:21,362 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) [2022-11-02 21:02:21,362 INFO L175 Difference]: Start difference. First operand has 137 places, 173 transitions, 756 flow. Second operand 6 states and 570 transitions. [2022-11-02 21:02:21,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 209 transitions, 1220 flow [2022-11-02 21:02:21,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 209 transitions, 1202 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 21:02:21,380 INFO L231 Difference]: Finished difference. Result has 147 places, 189 transitions, 952 flow [2022-11-02 21:02:21,380 INFO L270 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} [2022-11-02 21:02:21,381 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 28 predicate places. [2022-11-02 21:02:21,381 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 189 transitions, 952 flow [2022-11-02 21:02:21,382 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) [2022-11-02 21:02:21,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:21,382 INFO L208 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] [2022-11-02 21:02:21,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:02:21,383 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)] === [2022-11-02 21:02:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash 627379880, now seen corresponding path program 1 times [2022-11-02 21:02:21,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:21,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987929637] [2022-11-02 21:02:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:21,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:22,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:22,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:22,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987929637] [2022-11-02 21:02:22,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987929637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:22,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:22,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:02:22,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725373766] [2022-11-02 21:02:22,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:22,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:02:22,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:22,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:02:22,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:02:22,039 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 116 [2022-11-02 21:02:22,040 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) [2022-11-02 21:02:22,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:22,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 116 [2022-11-02 21:02:22,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:22,809 INFO L130 PetriNetUnfolder]: 234/901 cut-off events. [2022-11-02 21:02:22,809 INFO L131 PetriNetUnfolder]: For 780/784 co-relation queries the response was YES. [2022-11-02 21:02:22,813 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 5302 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. [2022-11-02 21:02:22,816 INFO L137 encePairwiseOnDemand]: 102/116 looper letters, 130 selfloop transitions, 33 changer transitions 35/260 dead transitions. [2022-11-02 21:02:22,817 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 260 transitions, 1811 flow [2022-11-02 21:02:22,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-02 21:02:22,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-02 21:02:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1319 transitions. [2022-11-02 21:02:22,821 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6317049808429118 [2022-11-02 21:02:22,821 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1319 transitions. [2022-11-02 21:02:22,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1319 transitions. [2022-11-02 21:02:22,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:22,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1319 transitions. [2022-11-02 21:02:22,825 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) [2022-11-02 21:02:22,829 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) [2022-11-02 21:02:22,830 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) [2022-11-02 21:02:22,831 INFO L175 Difference]: Start difference. First operand has 147 places, 189 transitions, 952 flow. Second operand 18 states and 1319 transitions. [2022-11-02 21:02:22,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 260 transitions, 1811 flow [2022-11-02 21:02:22,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 260 transitions, 1733 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-11-02 21:02:22,847 INFO L231 Difference]: Finished difference. Result has 159 places, 188 transitions, 941 flow [2022-11-02 21:02:22,847 INFO L270 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} [2022-11-02 21:02:22,848 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 40 predicate places. [2022-11-02 21:02:22,848 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 188 transitions, 941 flow [2022-11-02 21:02:22,849 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) [2022-11-02 21:02:22,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:22,849 INFO L208 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] [2022-11-02 21:02:22,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:02:22,849 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)] === [2022-11-02 21:02:22,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:22,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1787618827, now seen corresponding path program 1 times [2022-11-02 21:02:22,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:22,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015461752] [2022-11-02 21:02:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:22,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:02:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:02:23,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:02:23,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015461752] [2022-11-02 21:02:23,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015461752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:02:23,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:02:23,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 21:02:23,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50694816] [2022-11-02 21:02:23,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:02:23,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 21:02:23,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:02:23,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 21:02:23,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:02:23,399 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 116 [2022-11-02 21:02:23,400 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) [2022-11-02 21:02:23,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:02:23,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 116 [2022-11-02 21:02:23,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:02:24,079 INFO L130 PetriNetUnfolder]: 195/714 cut-off events. [2022-11-02 21:02:24,079 INFO L131 PetriNetUnfolder]: For 663/668 co-relation queries the response was YES. [2022-11-02 21:02:24,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2298 conditions, 714 events. 195/714 cut-off events. For 663/668 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3682 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. [2022-11-02 21:02:24,086 INFO L137 encePairwiseOnDemand]: 98/116 looper letters, 115 selfloop transitions, 63 changer transitions 16/259 dead transitions. [2022-11-02 21:02:24,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 259 transitions, 1773 flow [2022-11-02 21:02:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 21:02:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 21:02:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1165 transitions. [2022-11-02 21:02:24,090 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2022-11-02 21:02:24,090 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1165 transitions. [2022-11-02 21:02:24,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1165 transitions. [2022-11-02 21:02:24,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:02:24,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1165 transitions. [2022-11-02 21:02:24,119 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) [2022-11-02 21:02:24,123 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) [2022-11-02 21:02:24,124 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) [2022-11-02 21:02:24,124 INFO L175 Difference]: Start difference. First operand has 159 places, 188 transitions, 941 flow. Second operand 15 states and 1165 transitions. [2022-11-02 21:02:24,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 259 transitions, 1773 flow [2022-11-02 21:02:24,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 259 transitions, 1677 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-02 21:02:24,143 INFO L231 Difference]: Finished difference. Result has 163 places, 200 transitions, 1218 flow [2022-11-02 21:02:24,144 INFO L270 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} [2022-11-02 21:02:24,145 INFO L287 CegarLoopForPetriNet]: 119 programPoint places, 44 predicate places. [2022-11-02 21:02:24,145 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 200 transitions, 1218 flow [2022-11-02 21:02:24,145 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) [2022-11-02 21:02:24,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:02:24,146 INFO L208 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] [2022-11-02 21:02:24,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:02:24,146 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)] === [2022-11-02 21:02:24,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:02:24,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1619869245, now seen corresponding path program 1 times [2022-11-02 21:02:24,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:02:24,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456220164] [2022-11-02 21:02:24,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:02:24,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:02:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:02:24,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:02:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:02:24,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:02:24,267 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:02:24,268 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2022-11-02 21:02:24,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-11-02 21:02:24,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-11-02 21:02:24,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-11-02 21:02:24,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-11-02 21:02:24,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-11-02 21:02:24,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-02 21:02:24,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-11-02 21:02:24,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-11-02 21:02:24,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-11-02 21:02:24,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-11-02 21:02:24,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-11-02 21:02:24,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-11-02 21:02:24,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-11-02 21:02:24,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-11-02 21:02:24,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:02:24,281 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:02:24,289 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:02:24,289 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:02:24,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:02:24 BasicIcfg [2022-11-02 21:02:24,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:02:24,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:02:24,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:02:24,391 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:02:24,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:02:16" (3/4) ... [2022-11-02 21:02:24,395 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:02:24,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:02:24,396 INFO L158 Benchmark]: Toolchain (without parser) took 9913.08ms. Allocated memory was 111.1MB in the beginning and 264.2MB in the end (delta: 153.1MB). Free memory was 68.3MB in the beginning and 203.4MB in the end (delta: -135.1MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-02 21:02:24,397 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:02:24,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 958.97ms. Allocated memory is still 111.1MB. Free memory was 68.1MB in the beginning and 57.4MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 21:02:24,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.59ms. Allocated memory is still 111.1MB. Free memory was 57.4MB in the beginning and 54.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:02:24,400 INFO L158 Benchmark]: Boogie Preprocessor took 60.37ms. Allocated memory is still 111.1MB. Free memory was 54.9MB in the beginning and 52.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:02:24,400 INFO L158 Benchmark]: RCFGBuilder took 581.26ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 52.8MB in the beginning and 114.5MB in the end (delta: -61.7MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-11-02 21:02:24,401 INFO L158 Benchmark]: TraceAbstraction took 8204.03ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 113.7MB in the beginning and 204.5MB in the end (delta: -90.7MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-11-02 21:02:24,401 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 264.2MB. Free memory was 204.5MB in the beginning and 203.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:02:24,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 958.97ms. Allocated memory is still 111.1MB. Free memory was 68.1MB in the beginning and 57.4MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.59ms. Allocated memory is still 111.1MB. Free memory was 57.4MB in the beginning and 54.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.37ms. Allocated memory is still 111.1MB. Free memory was 54.9MB in the beginning and 52.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.26ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 52.8MB in the beginning and 114.5MB in the end (delta: -61.7MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8204.03ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 113.7MB in the beginning and 204.5MB in the end (delta: -90.7MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 264.2MB. Free memory was 204.5MB in the beginning and 203.4MB 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: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; 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: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1237] * C: x = malloc(sizeof(int)) [1236] 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: 7.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 339 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 156 mSDsCounter, 162 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1769 IncrementalHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 162 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s 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 could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:02:24,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4be18dd7-6e59-4434-8296-57636723b69d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE