./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:19:27,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:19:28,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:19:28,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:19:28,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:19:28,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:19:28,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:19:28,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:19:28,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:19:28,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:19:28,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:19:28,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:19:28,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:19:28,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:19:28,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:19:28,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:19:28,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:19:28,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:19:28,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:19:28,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:19:28,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:19:28,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:19:28,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:19:28,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:19:28,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:19:28,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:19:28,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:19:28,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:19:28,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:19:28,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:19:28,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:19:28,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:19:28,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:19:28,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:19:28,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:19:28,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:19:28,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:19:28,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:19:28,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:19:28,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:19:28,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:19:28,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:19:28,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:19:28,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:19:28,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:19:28,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:19:28,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:19:28,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:19:28,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:19:28,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:19:28,188 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:19:28,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:19:28,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:19:28,191 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:19:28,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:19:28,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:19:28,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:19:28,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:19:28,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:19:28,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:19:28,193 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:19:28,193 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:19:28,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:19:28,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:19:28,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:19:28,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:19:28,195 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:19:28,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:19:28,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:19:28,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:19:28,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:19:28,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:19:28,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:19:28,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:19:28,198 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:19:28,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:19:28,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:19:28,199 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_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2022-11-18 20:19:28,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:19:28,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:19:28,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:19:28,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:19:28,628 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:19:28,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2022-11-18 20:19:28,711 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/data/91cbcb6b2/cb6b736f726147449b23fda4e13b1214/FLAG4ab180f59 [2022-11-18 20:19:29,309 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:19:29,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2022-11-18 20:19:29,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/data/91cbcb6b2/cb6b736f726147449b23fda4e13b1214/FLAG4ab180f59 [2022-11-18 20:19:29,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/data/91cbcb6b2/cb6b736f726147449b23fda4e13b1214 [2022-11-18 20:19:29,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:19:29,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:19:29,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:19:29,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:19:29,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:19:29,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:19:29" (1/1) ... [2022-11-18 20:19:29,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92f6631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:29, skipping insertion in model container [2022-11-18 20:19:29,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:19:29" (1/1) ... [2022-11-18 20:19:29,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:19:29,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:19:30,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:19:30,273 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:19:30,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:19:30,401 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:19:30,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30 WrapperNode [2022-11-18 20:19:30,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:19:30,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:19:30,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:19:30,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:19:30,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,475 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-11-18 20:19:30,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:19:30,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:19:30,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:19:30,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:19:30,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:19:30,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:19:30,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:19:30,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:19:30,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (1/1) ... [2022-11-18 20:19:30,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:19:30,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:30,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:19:30,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:19:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:19:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:19:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:19:30,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:19:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:19:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:19:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:19:30,594 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:19:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:19:30,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:19:30,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:19:30,596 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:19:30,822 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:19:30,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:19:31,239 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:19:31,255 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:19:31,255 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:19:31,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:31 BoogieIcfgContainer [2022-11-18 20:19:31,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:19:31,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:19:31,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:19:31,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:19:31,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:19:29" (1/3) ... [2022-11-18 20:19:31,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd7c5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:31, skipping insertion in model container [2022-11-18 20:19:31,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:30" (2/3) ... [2022-11-18 20:19:31,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd7c5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:31, skipping insertion in model container [2022-11-18 20:19:31,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:31" (3/3) ... [2022-11-18 20:19:31,270 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2022-11-18 20:19:31,281 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:19:31,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:19:31,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-18 20:19:31,293 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:19:31,378 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 20:19:31,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 196 flow [2022-11-18 20:19:31,484 INFO L130 PetriNetUnfolder]: 0/93 cut-off events. [2022-11-18 20:19:31,488 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:19:31,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-18 20:19:31,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 196 flow [2022-11-18 20:19:31,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 85 transitions, 173 flow [2022-11-18 20:19:31,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:19:31,534 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;@27536aa6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:19:31,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-18 20:19:31,550 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-18 20:19:31,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:19:31,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:31,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:31,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:31,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:31,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1222394702, now seen corresponding path program 1 times [2022-11-18 20:19:31,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:31,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54792868] [2022-11-18 20:19:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:31,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:32,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54792868] [2022-11-18 20:19:32,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54792868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:32,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:32,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:32,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487754701] [2022-11-18 20:19:32,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:32,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:19:32,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:32,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:19:32,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:32,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 94 [2022-11-18 20:19:32,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:32,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:32,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 94 [2022-11-18 20:19:32,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:33,375 INFO L130 PetriNetUnfolder]: 329/888 cut-off events. [2022-11-18 20:19:33,375 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:19:33,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1591 conditions, 888 events. 329/888 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4795 event pairs, 152 based on Foata normal form. 0/792 useless extension candidates. Maximal degree in co-relation 1553. Up to 489 conditions per place. [2022-11-18 20:19:33,385 INFO L137 encePairwiseOnDemand]: 83/94 looper letters, 90 selfloop transitions, 22 changer transitions 0/163 dead transitions. [2022-11-18 20:19:33,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 163 transitions, 553 flow [2022-11-18 20:19:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:19:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:19:33,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 467 transitions. [2022-11-18 20:19:33,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8280141843971631 [2022-11-18 20:19:33,402 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 467 transitions. [2022-11-18 20:19:33,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 467 transitions. [2022-11-18 20:19:33,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:33,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 467 transitions. [2022-11-18 20:19:33,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:33,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:33,418 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:33,420 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 173 flow. Second operand 6 states and 467 transitions. [2022-11-18 20:19:33,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 163 transitions, 553 flow [2022-11-18 20:19:33,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 163 transitions, 552 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:19:33,429 INFO L231 Difference]: Finished difference. Result has 98 places, 106 transitions, 322 flow [2022-11-18 20:19:33,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=322, PETRI_PLACES=98, PETRI_TRANSITIONS=106} [2022-11-18 20:19:33,435 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2022-11-18 20:19:33,435 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 106 transitions, 322 flow [2022-11-18 20:19:33,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.333333333333336) internal successors, (362), 6 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:33,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:33,436 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:33,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:19:33,437 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash -663443773, now seen corresponding path program 1 times [2022-11-18 20:19:33,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:33,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650785681] [2022-11-18 20:19:33,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:33,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:33,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:33,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650785681] [2022-11-18 20:19:33,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650785681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:33,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:33,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:33,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145240524] [2022-11-18 20:19:33,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:33,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:19:33,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:19:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:33,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2022-11-18 20:19:33,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 106 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:33,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:33,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2022-11-18 20:19:33,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:34,258 INFO L130 PetriNetUnfolder]: 329/909 cut-off events. [2022-11-18 20:19:34,259 INFO L131 PetriNetUnfolder]: For 376/382 co-relation queries the response was YES. [2022-11-18 20:19:34,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2023 conditions, 909 events. 329/909 cut-off events. For 376/382 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4941 event pairs, 146 based on Foata normal form. 0/832 useless extension candidates. Maximal degree in co-relation 1979. Up to 574 conditions per place. [2022-11-18 20:19:34,274 INFO L137 encePairwiseOnDemand]: 83/94 looper letters, 85 selfloop transitions, 26 changer transitions 0/160 dead transitions. [2022-11-18 20:19:34,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 160 transitions, 742 flow [2022-11-18 20:19:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:19:34,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:19:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 433 transitions. [2022-11-18 20:19:34,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7677304964539007 [2022-11-18 20:19:34,279 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 433 transitions. [2022-11-18 20:19:34,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 433 transitions. [2022-11-18 20:19:34,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:34,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 433 transitions. [2022-11-18 20:19:34,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.16666666666667) internal successors, (433), 6 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:34,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:34,286 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:34,286 INFO L175 Difference]: Start difference. First operand has 98 places, 106 transitions, 322 flow. Second operand 6 states and 433 transitions. [2022-11-18 20:19:34,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 160 transitions, 742 flow [2022-11-18 20:19:34,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 160 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:19:34,296 INFO L231 Difference]: Finished difference. Result has 108 places, 127 transitions, 506 flow [2022-11-18 20:19:34,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=506, PETRI_PLACES=108, PETRI_TRANSITIONS=127} [2022-11-18 20:19:34,297 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2022-11-18 20:19:34,298 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 127 transitions, 506 flow [2022-11-18 20:19:34,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:34,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:34,299 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:34,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:19:34,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 646679056, now seen corresponding path program 1 times [2022-11-18 20:19:34,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:34,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103153302] [2022-11-18 20:19:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:34,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:34,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:34,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103153302] [2022-11-18 20:19:34,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103153302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:34,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:34,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236007477] [2022-11-18 20:19:34,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:34,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:19:34,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:19:34,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:34,722 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 94 [2022-11-18 20:19:34,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 127 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:34,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:34,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 94 [2022-11-18 20:19:34,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:35,272 INFO L130 PetriNetUnfolder]: 422/1128 cut-off events. [2022-11-18 20:19:35,273 INFO L131 PetriNetUnfolder]: For 739/745 co-relation queries the response was YES. [2022-11-18 20:19:35,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 1128 events. 422/1128 cut-off events. For 739/745 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6600 event pairs, 169 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2852. Up to 779 conditions per place. [2022-11-18 20:19:35,283 INFO L137 encePairwiseOnDemand]: 79/94 looper letters, 96 selfloop transitions, 53 changer transitions 0/195 dead transitions. [2022-11-18 20:19:35,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 195 transitions, 1092 flow [2022-11-18 20:19:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:19:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:19:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 421 transitions. [2022-11-18 20:19:35,285 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7464539007092199 [2022-11-18 20:19:35,286 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 421 transitions. [2022-11-18 20:19:35,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 421 transitions. [2022-11-18 20:19:35,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:35,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 421 transitions. [2022-11-18 20:19:35,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:35,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:35,292 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:35,292 INFO L175 Difference]: Start difference. First operand has 108 places, 127 transitions, 506 flow. Second operand 6 states and 421 transitions. [2022-11-18 20:19:35,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 195 transitions, 1092 flow [2022-11-18 20:19:35,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 195 transitions, 1092 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:19:35,309 INFO L231 Difference]: Finished difference. Result has 118 places, 174 transitions, 980 flow [2022-11-18 20:19:35,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=980, PETRI_PLACES=118, PETRI_TRANSITIONS=174} [2022-11-18 20:19:35,312 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-18 20:19:35,312 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 174 transitions, 980 flow [2022-11-18 20:19:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:35,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:35,313 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:35,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:19:35,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:35,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:35,315 INFO L85 PathProgramCache]: Analyzing trace with hash 177457783, now seen corresponding path program 1 times [2022-11-18 20:19:35,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:35,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918390529] [2022-11-18 20:19:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:35,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:35,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:35,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918390529] [2022-11-18 20:19:35,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918390529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:35,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:35,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:35,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131764172] [2022-11-18 20:19:35,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:35,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:19:35,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:35,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:19:35,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:35,695 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2022-11-18 20:19:35,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 174 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:35,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:35,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2022-11-18 20:19:35,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:36,318 INFO L130 PetriNetUnfolder]: 579/1435 cut-off events. [2022-11-18 20:19:36,318 INFO L131 PetriNetUnfolder]: For 1809/1818 co-relation queries the response was YES. [2022-11-18 20:19:36,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4458 conditions, 1435 events. 579/1435 cut-off events. For 1809/1818 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8466 event pairs, 179 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 4406. Up to 1010 conditions per place. [2022-11-18 20:19:36,333 INFO L137 encePairwiseOnDemand]: 75/94 looper letters, 132 selfloop transitions, 83 changer transitions 4/269 dead transitions. [2022-11-18 20:19:36,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 269 transitions, 1892 flow [2022-11-18 20:19:36,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:19:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:19:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 456 transitions. [2022-11-18 20:19:36,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8085106382978723 [2022-11-18 20:19:36,336 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 456 transitions. [2022-11-18 20:19:36,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 456 transitions. [2022-11-18 20:19:36,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:36,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 456 transitions. [2022-11-18 20:19:36,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,347 INFO L175 Difference]: Start difference. First operand has 118 places, 174 transitions, 980 flow. Second operand 6 states and 456 transitions. [2022-11-18 20:19:36,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 269 transitions, 1892 flow [2022-11-18 20:19:36,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 269 transitions, 1836 flow, removed 28 selfloop flow, removed 0 redundant places. [2022-11-18 20:19:36,371 INFO L231 Difference]: Finished difference. Result has 128 places, 243 transitions, 1688 flow [2022-11-18 20:19:36,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1688, PETRI_PLACES=128, PETRI_TRANSITIONS=243} [2022-11-18 20:19:36,373 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2022-11-18 20:19:36,373 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 243 transitions, 1688 flow [2022-11-18 20:19:36,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,374 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:36,376 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:36,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:19:36,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:36,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:36,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1574292841, now seen corresponding path program 1 times [2022-11-18 20:19:36,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:36,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891708308] [2022-11-18 20:19:36,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:36,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:36,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:36,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891708308] [2022-11-18 20:19:36,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891708308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:36,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:36,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:19:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968979212] [2022-11-18 20:19:36,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:36,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:19:36,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:19:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:19:36,490 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 94 [2022-11-18 20:19:36,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 243 transitions, 1688 flow. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:36,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 94 [2022-11-18 20:19:36,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:36,559 INFO L130 PetriNetUnfolder]: 40/222 cut-off events. [2022-11-18 20:19:36,559 INFO L131 PetriNetUnfolder]: For 194/194 co-relation queries the response was YES. [2022-11-18 20:19:36,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 222 events. 40/222 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 609 event pairs, 5 based on Foata normal form. 2/213 useless extension candidates. Maximal degree in co-relation 533. Up to 54 conditions per place. [2022-11-18 20:19:36,561 INFO L137 encePairwiseOnDemand]: 90/94 looper letters, 7 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2022-11-18 20:19:36,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 103 transitions, 464 flow [2022-11-18 20:19:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:19:36,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:19:36,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2022-11-18 20:19:36,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9184397163120568 [2022-11-18 20:19:36,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2022-11-18 20:19:36,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2022-11-18 20:19:36,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:36,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2022-11-18 20:19:36,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,565 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,565 INFO L175 Difference]: Start difference. First operand has 128 places, 243 transitions, 1688 flow. Second operand 3 states and 259 transitions. [2022-11-18 20:19:36,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 103 transitions, 464 flow [2022-11-18 20:19:36,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 103 transitions, 338 flow, removed 33 selfloop flow, removed 30 redundant places. [2022-11-18 20:19:36,571 INFO L231 Difference]: Finished difference. Result has 97 places, 103 transitions, 324 flow [2022-11-18 20:19:36,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=97, PETRI_TRANSITIONS=103} [2022-11-18 20:19:36,573 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 8 predicate places. [2022-11-18 20:19:36,574 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 103 transitions, 324 flow [2022-11-18 20:19:36,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,574 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:36,575 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:36,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:19:36,575 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:36,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:36,576 INFO L85 PathProgramCache]: Analyzing trace with hash -711591211, now seen corresponding path program 1 times [2022-11-18 20:19:36,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:36,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277195090] [2022-11-18 20:19:36,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:36,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:36,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277195090] [2022-11-18 20:19:36,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277195090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:36,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:36,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:19:36,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343618226] [2022-11-18 20:19:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:36,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:19:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:19:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:19:36,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 94 [2022-11-18 20:19:36,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 103 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:36,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:36,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 94 [2022-11-18 20:19:36,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:37,251 INFO L130 PetriNetUnfolder]: 119/407 cut-off events. [2022-11-18 20:19:37,251 INFO L131 PetriNetUnfolder]: For 123/124 co-relation queries the response was YES. [2022-11-18 20:19:37,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 407 events. 119/407 cut-off events. For 123/124 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1563 event pairs, 17 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 973. Up to 186 conditions per place. [2022-11-18 20:19:37,254 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 71 selfloop transitions, 25 changer transitions 11/158 dead transitions. [2022-11-18 20:19:37,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 158 transitions, 744 flow [2022-11-18 20:19:37,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:19:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:19:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2022-11-18 20:19:37,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7393617021276596 [2022-11-18 20:19:37,257 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2022-11-18 20:19:37,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2022-11-18 20:19:37,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:37,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2022-11-18 20:19:37,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:37,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:37,260 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:37,260 INFO L175 Difference]: Start difference. First operand has 97 places, 103 transitions, 324 flow. Second operand 6 states and 417 transitions. [2022-11-18 20:19:37,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 158 transitions, 744 flow [2022-11-18 20:19:37,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 158 transitions, 740 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:19:37,265 INFO L231 Difference]: Finished difference. Result has 106 places, 123 transitions, 536 flow [2022-11-18 20:19:37,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=106, PETRI_TRANSITIONS=123} [2022-11-18 20:19:37,268 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 17 predicate places. [2022-11-18 20:19:37,268 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 123 transitions, 536 flow [2022-11-18 20:19:37,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:37,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:37,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:37,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:19:37,269 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1614757926, now seen corresponding path program 1 times [2022-11-18 20:19:37,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:37,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557683862] [2022-11-18 20:19:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:37,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:37,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557683862] [2022-11-18 20:19:37,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557683862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:37,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:37,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:37,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174681214] [2022-11-18 20:19:37,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:37,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:19:37,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:19:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:19:37,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 94 [2022-11-18 20:19:37,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 123 transitions, 536 flow. Second operand has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:37,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:37,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 94 [2022-11-18 20:19:37,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:38,458 INFO L130 PetriNetUnfolder]: 148/481 cut-off events. [2022-11-18 20:19:38,458 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2022-11-18 20:19:38,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1464 conditions, 481 events. 148/481 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1919 event pairs, 2 based on Foata normal form. 11/492 useless extension candidates. Maximal degree in co-relation 1410. Up to 195 conditions per place. [2022-11-18 20:19:38,461 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 94 selfloop transitions, 29 changer transitions 16/179 dead transitions. [2022-11-18 20:19:38,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 179 transitions, 1098 flow [2022-11-18 20:19:38,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:19:38,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:19:38,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 548 transitions. [2022-11-18 20:19:38,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5829787234042553 [2022-11-18 20:19:38,465 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 548 transitions. [2022-11-18 20:19:38,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 548 transitions. [2022-11-18 20:19:38,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:38,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 548 transitions. [2022-11-18 20:19:38,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.8) internal successors, (548), 10 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:38,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:38,471 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:38,471 INFO L175 Difference]: Start difference. First operand has 106 places, 123 transitions, 536 flow. Second operand 10 states and 548 transitions. [2022-11-18 20:19:38,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 179 transitions, 1098 flow [2022-11-18 20:19:38,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 179 transitions, 1080 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 20:19:38,479 INFO L231 Difference]: Finished difference. Result has 114 places, 119 transitions, 552 flow [2022-11-18 20:19:38,480 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=552, PETRI_PLACES=114, PETRI_TRANSITIONS=119} [2022-11-18 20:19:38,481 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 25 predicate places. [2022-11-18 20:19:38,482 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 119 transitions, 552 flow [2022-11-18 20:19:38,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 49.18181818181818) internal successors, (541), 11 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:38,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:38,482 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:38,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:19:38,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:38,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:38,483 INFO L85 PathProgramCache]: Analyzing trace with hash 474936069, now seen corresponding path program 1 times [2022-11-18 20:19:38,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:38,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788874620] [2022-11-18 20:19:38,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:38,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:39,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:39,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:39,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788874620] [2022-11-18 20:19:39,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788874620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:39,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:39,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:39,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420388920] [2022-11-18 20:19:39,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:39,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:19:39,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:19:39,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:19:39,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-18 20:19:39,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 119 transitions, 552 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:39,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:39,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-18 20:19:39,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:39,819 INFO L130 PetriNetUnfolder]: 108/390 cut-off events. [2022-11-18 20:19:39,819 INFO L131 PetriNetUnfolder]: For 329/330 co-relation queries the response was YES. [2022-11-18 20:19:39,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1245 conditions, 390 events. 108/390 cut-off events. For 329/330 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1361 event pairs, 30 based on Foata normal form. 5/393 useless extension candidates. Maximal degree in co-relation 1187. Up to 199 conditions per place. [2022-11-18 20:19:39,822 INFO L137 encePairwiseOnDemand]: 81/94 looper letters, 81 selfloop transitions, 26 changer transitions 13/163 dead transitions. [2022-11-18 20:19:39,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 163 transitions, 924 flow [2022-11-18 20:19:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:19:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:19:39,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 582 transitions. [2022-11-18 20:19:39,825 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6191489361702127 [2022-11-18 20:19:39,826 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 582 transitions. [2022-11-18 20:19:39,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 582 transitions. [2022-11-18 20:19:39,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:39,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 582 transitions. [2022-11-18 20:19:39,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.2) internal successors, (582), 10 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:39,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:39,831 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:39,831 INFO L175 Difference]: Start difference. First operand has 114 places, 119 transitions, 552 flow. Second operand 10 states and 582 transitions. [2022-11-18 20:19:39,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 163 transitions, 924 flow [2022-11-18 20:19:39,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 163 transitions, 811 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-18 20:19:39,842 INFO L231 Difference]: Finished difference. Result has 114 places, 119 transitions, 517 flow [2022-11-18 20:19:39,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=517, PETRI_PLACES=114, PETRI_TRANSITIONS=119} [2022-11-18 20:19:39,845 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 25 predicate places. [2022-11-18 20:19:39,846 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 119 transitions, 517 flow [2022-11-18 20:19:39,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:39,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:39,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:39,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:19:39,847 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:39,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:39,848 INFO L85 PathProgramCache]: Analyzing trace with hash -327873, now seen corresponding path program 2 times [2022-11-18 20:19:39,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:39,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392994000] [2022-11-18 20:19:39,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:39,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:40,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:40,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392994000] [2022-11-18 20:19:40,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392994000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:40,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:40,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:40,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871516506] [2022-11-18 20:19:40,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:40,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:19:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:19:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:19:40,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-18 20:19:40,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 119 transitions, 517 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:40,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:40,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-18 20:19:40,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:41,041 INFO L130 PetriNetUnfolder]: 156/513 cut-off events. [2022-11-18 20:19:41,041 INFO L131 PetriNetUnfolder]: For 511/512 co-relation queries the response was YES. [2022-11-18 20:19:41,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1629 conditions, 513 events. 156/513 cut-off events. For 511/512 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2129 event pairs, 24 based on Foata normal form. 10/521 useless extension candidates. Maximal degree in co-relation 1569. Up to 220 conditions per place. [2022-11-18 20:19:41,045 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 58 selfloop transitions, 4 changer transitions 112/217 dead transitions. [2022-11-18 20:19:41,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 217 transitions, 1343 flow [2022-11-18 20:19:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:19:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:19:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 587 transitions. [2022-11-18 20:19:41,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.624468085106383 [2022-11-18 20:19:41,049 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 587 transitions. [2022-11-18 20:19:41,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 587 transitions. [2022-11-18 20:19:41,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:41,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 587 transitions. [2022-11-18 20:19:41,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:41,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:41,054 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:41,054 INFO L175 Difference]: Start difference. First operand has 114 places, 119 transitions, 517 flow. Second operand 10 states and 587 transitions. [2022-11-18 20:19:41,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 217 transitions, 1343 flow [2022-11-18 20:19:41,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 217 transitions, 1267 flow, removed 1 selfloop flow, removed 9 redundant places. [2022-11-18 20:19:41,064 INFO L231 Difference]: Finished difference. Result has 118 places, 103 transitions, 414 flow [2022-11-18 20:19:41,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=414, PETRI_PLACES=118, PETRI_TRANSITIONS=103} [2022-11-18 20:19:41,066 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-18 20:19:41,066 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 103 transitions, 414 flow [2022-11-18 20:19:41,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:41,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:41,067 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:41,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:19:41,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:41,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:41,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1934948761, now seen corresponding path program 3 times [2022-11-18 20:19:41,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:41,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163645069] [2022-11-18 20:19:41,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:41,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:41,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:41,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163645069] [2022-11-18 20:19:41,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163645069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:41,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:41,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:41,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473536600] [2022-11-18 20:19:41,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:41,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:19:41,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:41,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:19:41,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:19:41,697 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-18 20:19:41,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 103 transitions, 414 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:41,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:41,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-18 20:19:41,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:42,260 INFO L130 PetriNetUnfolder]: 91/344 cut-off events. [2022-11-18 20:19:42,260 INFO L131 PetriNetUnfolder]: For 503/503 co-relation queries the response was YES. [2022-11-18 20:19:42,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1050 conditions, 344 events. 91/344 cut-off events. For 503/503 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1121 event pairs, 24 based on Foata normal form. 10/352 useless extension candidates. Maximal degree in co-relation 986. Up to 149 conditions per place. [2022-11-18 20:19:42,271 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 71 selfloop transitions, 11 changer transitions 43/168 dead transitions. [2022-11-18 20:19:42,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 168 transitions, 917 flow [2022-11-18 20:19:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:19:42,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:19:42,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 629 transitions. [2022-11-18 20:19:42,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6083172147001934 [2022-11-18 20:19:42,274 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 629 transitions. [2022-11-18 20:19:42,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 629 transitions. [2022-11-18 20:19:42,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:42,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 629 transitions. [2022-11-18 20:19:42,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.18181818181818) internal successors, (629), 11 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,280 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,280 INFO L175 Difference]: Start difference. First operand has 118 places, 103 transitions, 414 flow. Second operand 11 states and 629 transitions. [2022-11-18 20:19:42,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 168 transitions, 917 flow [2022-11-18 20:19:42,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 836 flow, removed 32 selfloop flow, removed 9 redundant places. [2022-11-18 20:19:42,288 INFO L231 Difference]: Finished difference. Result has 118 places, 103 transitions, 395 flow [2022-11-18 20:19:42,288 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=395, PETRI_PLACES=118, PETRI_TRANSITIONS=103} [2022-11-18 20:19:42,289 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 29 predicate places. [2022-11-18 20:19:42,289 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 103 transitions, 395 flow [2022-11-18 20:19:42,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,290 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:42,290 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:42,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:19:42,290 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:42,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:42,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1579048557, now seen corresponding path program 4 times [2022-11-18 20:19:42,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:42,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962379585] [2022-11-18 20:19:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:42,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:42,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962379585] [2022-11-18 20:19:42,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962379585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:42,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:42,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:42,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258907799] [2022-11-18 20:19:42,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:42,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:19:42,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:42,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:19:42,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:19:42,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-18 20:19:42,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 103 transitions, 395 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:42,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:42,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-18 20:19:42,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:43,343 INFO L130 PetriNetUnfolder]: 108/385 cut-off events. [2022-11-18 20:19:43,343 INFO L131 PetriNetUnfolder]: For 485/485 co-relation queries the response was YES. [2022-11-18 20:19:43,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 385 events. 108/385 cut-off events. For 485/485 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1342 event pairs, 38 based on Foata normal form. 10/392 useless extension candidates. Maximal degree in co-relation 1136. Up to 109 conditions per place. [2022-11-18 20:19:43,345 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 49 selfloop transitions, 5 changer transitions 77/174 dead transitions. [2022-11-18 20:19:43,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 174 transitions, 1007 flow [2022-11-18 20:19:43,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:19:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:19:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 568 transitions. [2022-11-18 20:19:43,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6042553191489362 [2022-11-18 20:19:43,348 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 568 transitions. [2022-11-18 20:19:43,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 568 transitions. [2022-11-18 20:19:43,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:43,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 568 transitions. [2022-11-18 20:19:43,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 56.8) internal successors, (568), 10 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:43,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:43,353 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:43,353 INFO L175 Difference]: Start difference. First operand has 118 places, 103 transitions, 395 flow. Second operand 10 states and 568 transitions. [2022-11-18 20:19:43,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 174 transitions, 1007 flow [2022-11-18 20:19:43,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 174 transitions, 947 flow, removed 11 selfloop flow, removed 10 redundant places. [2022-11-18 20:19:43,360 INFO L231 Difference]: Finished difference. Result has 119 places, 97 transitions, 362 flow [2022-11-18 20:19:43,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=362, PETRI_PLACES=119, PETRI_TRANSITIONS=97} [2022-11-18 20:19:43,361 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2022-11-18 20:19:43,361 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 97 transitions, 362 flow [2022-11-18 20:19:43,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:43,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:19:43,362 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:43,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:19:43,363 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-18 20:19:43,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1002805105, now seen corresponding path program 5 times [2022-11-18 20:19:43,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:43,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402496985] [2022-11-18 20:19:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:43,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:19:43,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:43,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402496985] [2022-11-18 20:19:43,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402496985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:43,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:43,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:19:43,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265589929] [2022-11-18 20:19:43,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:43,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:19:43,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:43,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:19:43,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:19:43,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 94 [2022-11-18 20:19:43,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 97 transitions, 362 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:43,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:19:43,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 94 [2022-11-18 20:19:43,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:19:44,324 INFO L130 PetriNetUnfolder]: 31/167 cut-off events. [2022-11-18 20:19:44,325 INFO L131 PetriNetUnfolder]: For 211/213 co-relation queries the response was YES. [2022-11-18 20:19:44,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 167 events. 31/167 cut-off events. For 211/213 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 12/179 useless extension candidates. Maximal degree in co-relation 473. Up to 35 conditions per place. [2022-11-18 20:19:44,326 INFO L137 encePairwiseOnDemand]: 85/94 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2022-11-18 20:19:44,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 132 transitions, 680 flow [2022-11-18 20:19:44,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:19:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:19:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 552 transitions. [2022-11-18 20:19:44,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5872340425531914 [2022-11-18 20:19:44,329 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 552 transitions. [2022-11-18 20:19:44,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 552 transitions. [2022-11-18 20:19:44,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:19:44,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 552 transitions. [2022-11-18 20:19:44,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 55.2) internal successors, (552), 10 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:44,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:44,335 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 94.0) internal successors, (1034), 11 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:44,335 INFO L175 Difference]: Start difference. First operand has 119 places, 97 transitions, 362 flow. Second operand 10 states and 552 transitions. [2022-11-18 20:19:44,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 132 transitions, 680 flow [2022-11-18 20:19:44,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 132 transitions, 612 flow, removed 24 selfloop flow, removed 11 redundant places. [2022-11-18 20:19:44,339 INFO L231 Difference]: Finished difference. Result has 113 places, 0 transitions, 0 flow [2022-11-18 20:19:44,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=113, PETRI_TRANSITIONS=0} [2022-11-18 20:19:44,341 INFO L288 CegarLoopForPetriNet]: 89 programPoint places, 24 predicate places. [2022-11-18 20:19:44,342 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 0 transitions, 0 flow [2022-11-18 20:19:44,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:19:44,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-18 20:19:44,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-18 20:19:44,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-18 20:19:44,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2022-11-18 20:19:44,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-18 20:19:44,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-18 20:19:44,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-18 20:19:44,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-18 20:19:44,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:19:44,347 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:19:44,353 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:19:44,353 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:19:44,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:19:44 BasicIcfg [2022-11-18 20:19:44,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:19:44,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:19:44,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:19:44,360 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:19:44,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:31" (3/4) ... [2022-11-18 20:19:44,363 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:19:44,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 20:19:44,377 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-18 20:19:44,377 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:19:44,377 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:19:44,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:19:44,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:19:44,420 INFO L158 Benchmark]: Toolchain (without parser) took 14846.91ms. Allocated memory was 98.6MB in the beginning and 222.3MB in the end (delta: 123.7MB). Free memory was 60.8MB in the beginning and 177.3MB in the end (delta: -116.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,420 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:19:44,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.79ms. Allocated memory is still 98.6MB. Free memory was 60.6MB in the beginning and 57.1MB in the end (delta: 3.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.75ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 54.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,421 INFO L158 Benchmark]: Boogie Preprocessor took 33.19ms. Allocated memory is still 98.6MB. Free memory was 54.6MB in the beginning and 52.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,422 INFO L158 Benchmark]: RCFGBuilder took 747.03ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 52.9MB in the beginning and 93.2MB in the end (delta: -40.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,422 INFO L158 Benchmark]: TraceAbstraction took 13098.70ms. Allocated memory was 119.5MB in the beginning and 222.3MB in the end (delta: 102.8MB). Free memory was 92.5MB in the beginning and 180.5MB in the end (delta: -88.0MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,423 INFO L158 Benchmark]: Witness Printer took 59.92ms. Allocated memory is still 222.3MB. Free memory was 180.5MB in the beginning and 177.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:19:44,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.79ms. Allocated memory is still 98.6MB. Free memory was 60.6MB in the beginning and 57.1MB in the end (delta: 3.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.75ms. Allocated memory is still 98.6MB. Free memory was 57.1MB in the beginning and 54.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.19ms. Allocated memory is still 98.6MB. Free memory was 54.6MB in the beginning and 52.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 747.03ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 52.9MB in the beginning and 93.2MB in the end (delta: -40.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * TraceAbstraction took 13098.70ms. Allocated memory was 119.5MB in the beginning and 222.3MB in the end (delta: 102.8MB). Free memory was 92.5MB in the beginning and 180.5MB in the end (delta: -88.0MB). Peak memory consumption was 131.0MB. Max. memory is 16.1GB. * Witness Printer took 59.92ms. Allocated memory is still 222.3MB. Free memory was 180.5MB in the beginning and 177.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 121 locations, 8 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: 12.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 826 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 826 mSDsluCounter, 303 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 351 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2731 IncrementalHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 351 mSolverCounterUnsat, 220 mSDtfsCounter, 2731 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1688occurred in iteration=4, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 721 NumberOfCodeBlocks, 721 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 709 ConstructedInterpolants, 0 QuantifiedInterpolants, 4239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:19:44,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391a12df-3f69-4695-ac30-6e90af26a8a8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE