./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN --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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- 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-6b4ec56 [2022-11-20 09:30:29,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:30:29,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:30:29,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:30:29,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:30:29,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:30:29,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:30:29,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:30:29,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:30:29,055 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:30:29,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:30:29,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:30:29,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:30:29,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:30:29,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:30:29,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:30:29,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:30:29,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:30:29,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:30:29,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:30:29,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:30:29,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:30:29,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:30:29,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:30:29,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:30:29,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:30:29,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:30:29,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:30:29,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:30:29,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:30:29,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:30:29,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:30:29,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:30:29,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:30:29,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:30:29,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:30:29,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:30:29,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:30:29,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:30:29,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:30:29,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:30:29,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:30:29,148 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:30:29,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:30:29,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:30:29,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:30:29,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:30:29,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:30:29,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:30:29,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:30:29,152 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:30:29,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:30:29,152 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:30:29,152 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:30:29,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:30:29,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:30:29,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:30:29,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:30:29,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:30:29,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:30:29,154 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:30:29,155 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:30:29,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:30:29,155 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:30:29,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:30:29,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:30:29,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:30:29,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:30:29,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:29,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:30:29,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:30:29,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:30:29,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:30:29,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:30:29,158 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:30:29,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:30:29,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:30:29,159 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_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2022-11-20 09:30:29,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:30:29,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:30:29,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:30:29,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:30:29,550 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:30:29,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-11-20 09:30:32,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:30:32,970 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:30:32,987 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2022-11-20 09:30:33,011 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/data/c5653b9f2/a43d6c0bdc6c4a2b97dc446e00083be4/FLAGa4ba747d6 [2022-11-20 09:30:33,032 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/data/c5653b9f2/a43d6c0bdc6c4a2b97dc446e00083be4 [2022-11-20 09:30:33,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:30:33,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:30:33,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:33,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:30:33,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:30:33,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:33" (1/1) ... [2022-11-20 09:30:33,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a58ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:33, skipping insertion in model container [2022-11-20 09:30:33,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:30:33" (1/1) ... [2022-11-20 09:30:33,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:30:33,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:30:33,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:33,986 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:30:34,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:30:34,228 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:30:34,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34 WrapperNode [2022-11-20 09:30:34,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:30:34,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:34,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:30:34,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:30:34,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,338 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 236 [2022-11-20 09:30:34,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:30:34,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:30:34,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:30:34,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:30:34,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,408 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:30:34,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:30:34,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:30:34,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:30:34,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (1/1) ... [2022-11-20 09:30:34,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:30:34,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:34,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:30:34,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e608f830-fe4a-4525-ac65-f053a7e949fc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:30:34,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:30:34,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:30:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:30:34,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 09:30:34,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:30:34,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:30:34,510 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 09:30:34,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:30:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:30:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:30:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 09:30:34,511 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 09:30:34,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:30:34,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:30:34,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:30:34,513 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:30:34,786 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:30:34,788 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:30:35,378 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:30:35,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:30:35,389 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:30:35,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:35 BoogieIcfgContainer [2022-11-20 09:30:35,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:30:35,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:30:35,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:30:35,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:30:35,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:30:33" (1/3) ... [2022-11-20 09:30:35,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68131725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:35, skipping insertion in model container [2022-11-20 09:30:35,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:30:34" (2/3) ... [2022-11-20 09:30:35,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68131725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:30:35, skipping insertion in model container [2022-11-20 09:30:35,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:30:35" (3/3) ... [2022-11-20 09:30:35,401 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2022-11-20 09:30:35,410 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:30:35,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:30:35,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-20 09:30:35,422 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:30:35,567 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 09:30:35,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 274 transitions, 553 flow [2022-11-20 09:30:35,753 INFO L130 PetriNetUnfolder]: 2/273 cut-off events. [2022-11-20 09:30:35,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:30:35,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 2/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2022-11-20 09:30:35,764 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 274 transitions, 553 flow [2022-11-20 09:30:35,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 273 transitions, 549 flow [2022-11-20 09:30:35,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:30:35,788 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;@19f2f4b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:30:35,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-20 09:30:35,796 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-20 09:30:35,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:30:35,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:35,798 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] [2022-11-20 09:30:35,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:35,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:35,804 INFO L85 PathProgramCache]: Analyzing trace with hash 984162291, now seen corresponding path program 1 times [2022-11-20 09:30:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:35,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839091181] [2022-11-20 09:30:35,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:35,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:36,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:36,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839091181] [2022-11-20 09:30:36,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839091181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:36,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:36,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:36,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364897036] [2022-11-20 09:30:36,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:36,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:36,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:36,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:36,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:36,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 274 [2022-11-20 09:30:36,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 273 transitions, 549 flow. Second operand has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:36,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:36,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 274 [2022-11-20 09:30:36,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:38,900 INFO L130 PetriNetUnfolder]: 2452/7155 cut-off events. [2022-11-20 09:30:38,901 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 09:30:38,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12111 conditions, 7155 events. 2452/7155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 53017 event pairs, 2408 based on Foata normal form. 48/6326 useless extension candidates. Maximal degree in co-relation 12002. Up to 4947 conditions per place. [2022-11-20 09:30:38,946 INFO L137 encePairwiseOnDemand]: 267/274 looper letters, 125 selfloop transitions, 5 changer transitions 0/271 dead transitions. [2022-11-20 09:30:38,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 271 transitions, 805 flow [2022-11-20 09:30:38,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 984 transitions. [2022-11-20 09:30:38,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5985401459854015 [2022-11-20 09:30:38,970 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 984 transitions. [2022-11-20 09:30:38,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 984 transitions. [2022-11-20 09:30:38,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:38,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 984 transitions. [2022-11-20 09:30:38,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:38,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:38,997 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:38,999 INFO L175 Difference]: Start difference. First operand has 275 places, 273 transitions, 549 flow. Second operand 6 states and 984 transitions. [2022-11-20 09:30:39,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 271 transitions, 805 flow [2022-11-20 09:30:39,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 271 transitions, 804 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:30:39,014 INFO L231 Difference]: Finished difference. Result has 278 places, 271 transitions, 554 flow [2022-11-20 09:30:39,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=554, PETRI_PLACES=278, PETRI_TRANSITIONS=271} [2022-11-20 09:30:39,024 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 3 predicate places. [2022-11-20 09:30:39,025 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 271 transitions, 554 flow [2022-11-20 09:30:39,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:39,026 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:39,026 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] [2022-11-20 09:30:39,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:30:39,027 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:39,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash -690119554, now seen corresponding path program 1 times [2022-11-20 09:30:39,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:39,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697087583] [2022-11-20 09:30:39,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:39,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:39,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697087583] [2022-11-20 09:30:39,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697087583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:39,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:39,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375028745] [2022-11-20 09:30:39,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:39,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:39,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:39,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:39,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:39,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 274 [2022-11-20 09:30:39,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 271 transitions, 554 flow. Second operand has 6 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:39,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:39,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 274 [2022-11-20 09:30:39,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:42,289 INFO L130 PetriNetUnfolder]: 3374/9756 cut-off events. [2022-11-20 09:30:42,289 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 09:30:42,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16618 conditions, 9756 events. 3374/9756 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 77309 event pairs, 1399 based on Foata normal form. 0/8558 useless extension candidates. Maximal degree in co-relation 16565. Up to 5264 conditions per place. [2022-11-20 09:30:42,347 INFO L137 encePairwiseOnDemand]: 242/274 looper letters, 230 selfloop transitions, 90 changer transitions 0/464 dead transitions. [2022-11-20 09:30:42,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 464 transitions, 1580 flow [2022-11-20 09:30:42,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1192 transitions. [2022-11-20 09:30:42,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7250608272506083 [2022-11-20 09:30:42,352 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1192 transitions. [2022-11-20 09:30:42,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1192 transitions. [2022-11-20 09:30:42,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:42,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1192 transitions. [2022-11-20 09:30:42,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:42,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:42,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:42,363 INFO L175 Difference]: Start difference. First operand has 278 places, 271 transitions, 554 flow. Second operand 6 states and 1192 transitions. [2022-11-20 09:30:42,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 464 transitions, 1580 flow [2022-11-20 09:30:42,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 464 transitions, 1570 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:30:42,378 INFO L231 Difference]: Finished difference. Result has 282 places, 354 transitions, 1120 flow [2022-11-20 09:30:42,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1120, PETRI_PLACES=282, PETRI_TRANSITIONS=354} [2022-11-20 09:30:42,380 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 7 predicate places. [2022-11-20 09:30:42,381 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 354 transitions, 1120 flow [2022-11-20 09:30:42,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:42,382 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:42,382 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] [2022-11-20 09:30:42,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:30:42,382 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:42,384 INFO L85 PathProgramCache]: Analyzing trace with hash 915714734, now seen corresponding path program 1 times [2022-11-20 09:30:42,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:42,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909664480] [2022-11-20 09:30:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:42,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909664480] [2022-11-20 09:30:42,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909664480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:42,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:42,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:42,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035989140] [2022-11-20 09:30:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:42,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:42,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:42,872 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 274 [2022-11-20 09:30:42,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 354 transitions, 1120 flow. Second operand has 6 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:42,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:42,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 274 [2022-11-20 09:30:42,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:46,171 INFO L130 PetriNetUnfolder]: 3685/10617 cut-off events. [2022-11-20 09:30:46,172 INFO L131 PetriNetUnfolder]: For 2179/2181 co-relation queries the response was YES. [2022-11-20 09:30:46,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20953 conditions, 10617 events. 3685/10617 cut-off events. For 2179/2181 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 83710 event pairs, 2558 based on Foata normal form. 0/9357 useless extension candidates. Maximal degree in co-relation 20835. Up to 7137 conditions per place. [2022-11-20 09:30:46,246 INFO L137 encePairwiseOnDemand]: 233/274 looper letters, 264 selfloop transitions, 123 changer transitions 0/526 dead transitions. [2022-11-20 09:30:46,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 526 transitions, 2398 flow [2022-11-20 09:30:46,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1145 transitions. [2022-11-20 09:30:46,251 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6964720194647201 [2022-11-20 09:30:46,252 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1145 transitions. [2022-11-20 09:30:46,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1145 transitions. [2022-11-20 09:30:46,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:46,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1145 transitions. [2022-11-20 09:30:46,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 190.83333333333334) internal successors, (1145), 6 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:46,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:46,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:46,263 INFO L175 Difference]: Start difference. First operand has 282 places, 354 transitions, 1120 flow. Second operand 6 states and 1145 transitions. [2022-11-20 09:30:46,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 526 transitions, 2398 flow [2022-11-20 09:30:46,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 526 transitions, 2398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:46,292 INFO L231 Difference]: Finished difference. Result has 291 places, 470 transitions, 2072 flow [2022-11-20 09:30:46,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2072, PETRI_PLACES=291, PETRI_TRANSITIONS=470} [2022-11-20 09:30:46,296 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 16 predicate places. [2022-11-20 09:30:46,296 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 470 transitions, 2072 flow [2022-11-20 09:30:46,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:46,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:46,297 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:46,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:30:46,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:46,299 INFO L85 PathProgramCache]: Analyzing trace with hash -883651209, now seen corresponding path program 1 times [2022-11-20 09:30:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:46,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316911224] [2022-11-20 09:30:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:46,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:46,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:46,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:46,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316911224] [2022-11-20 09:30:46,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316911224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:46,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:46,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:46,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111513417] [2022-11-20 09:30:46,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:46,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:46,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:46,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:46,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:46,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 274 [2022-11-20 09:30:46,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 470 transitions, 2072 flow. Second operand has 6 states, 6 states have (on average 144.16666666666666) internal successors, (865), 6 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:46,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:46,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 274 [2022-11-20 09:30:46,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:49,999 INFO L130 PetriNetUnfolder]: 3905/11244 cut-off events. [2022-11-20 09:30:49,999 INFO L131 PetriNetUnfolder]: For 4612/4616 co-relation queries the response was YES. [2022-11-20 09:30:50,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25154 conditions, 11244 events. 3905/11244 cut-off events. For 4612/4616 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 89366 event pairs, 2420 based on Foata normal form. 0/9979 useless extension candidates. Maximal degree in co-relation 25023. Up to 7549 conditions per place. [2022-11-20 09:30:50,073 INFO L137 encePairwiseOnDemand]: 233/274 looper letters, 379 selfloop transitions, 123 changer transitions 0/642 dead transitions. [2022-11-20 09:30:50,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 642 transitions, 3804 flow [2022-11-20 09:30:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:50,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1144 transitions. [2022-11-20 09:30:50,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6958637469586375 [2022-11-20 09:30:50,083 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1144 transitions. [2022-11-20 09:30:50,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1144 transitions. [2022-11-20 09:30:50,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:50,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1144 transitions. [2022-11-20 09:30:50,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:50,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:50,101 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:50,102 INFO L175 Difference]: Start difference. First operand has 291 places, 470 transitions, 2072 flow. Second operand 6 states and 1144 transitions. [2022-11-20 09:30:50,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 642 transitions, 3804 flow [2022-11-20 09:30:50,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 642 transitions, 3644 flow, removed 80 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:50,138 INFO L231 Difference]: Finished difference. Result has 300 places, 586 transitions, 3088 flow [2022-11-20 09:30:50,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3088, PETRI_PLACES=300, PETRI_TRANSITIONS=586} [2022-11-20 09:30:50,143 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 25 predicate places. [2022-11-20 09:30:50,143 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 586 transitions, 3088 flow [2022-11-20 09:30:50,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.16666666666666) internal successors, (865), 6 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:50,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:50,145 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:50,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:30:50,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:50,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1144487814, now seen corresponding path program 1 times [2022-11-20 09:30:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:50,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975462680] [2022-11-20 09:30:50,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:50,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:50,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:50,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975462680] [2022-11-20 09:30:50,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975462680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:50,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:50,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:50,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537664636] [2022-11-20 09:30:50,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:50,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:50,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:50,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:50,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:50,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 274 [2022-11-20 09:30:50,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 586 transitions, 3088 flow. Second operand has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:50,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:50,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 274 [2022-11-20 09:30:50,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:54,410 INFO L130 PetriNetUnfolder]: 4348/12356 cut-off events. [2022-11-20 09:30:54,410 INFO L131 PetriNetUnfolder]: For 7934/7970 co-relation queries the response was YES. [2022-11-20 09:30:54,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30409 conditions, 12356 events. 4348/12356 cut-off events. For 7934/7970 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 99052 event pairs, 2401 based on Foata normal form. 0/11091 useless extension candidates. Maximal degree in co-relation 30269. Up to 8246 conditions per place. [2022-11-20 09:30:54,492 INFO L137 encePairwiseOnDemand]: 231/274 looper letters, 501 selfloop transitions, 180 changer transitions 0/828 dead transitions. [2022-11-20 09:30:54,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 828 transitions, 5234 flow [2022-11-20 09:30:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:54,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:54,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1221 transitions. [2022-11-20 09:30:54,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7427007299270073 [2022-11-20 09:30:54,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1221 transitions. [2022-11-20 09:30:54,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1221 transitions. [2022-11-20 09:30:54,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:54,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1221 transitions. [2022-11-20 09:30:54,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.5) internal successors, (1221), 6 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:54,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:54,504 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:54,504 INFO L175 Difference]: Start difference. First operand has 300 places, 586 transitions, 3088 flow. Second operand 6 states and 1221 transitions. [2022-11-20 09:30:54,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 828 transitions, 5234 flow [2022-11-20 09:30:54,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 828 transitions, 4838 flow, removed 198 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:54,547 INFO L231 Difference]: Finished difference. Result has 310 places, 753 transitions, 4088 flow [2022-11-20 09:30:54,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=2704, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4088, PETRI_PLACES=310, PETRI_TRANSITIONS=753} [2022-11-20 09:30:54,550 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 35 predicate places. [2022-11-20 09:30:54,551 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 753 transitions, 4088 flow [2022-11-20 09:30:54,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:54,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:54,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:54,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:30:54,552 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:54,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:54,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1264877825, now seen corresponding path program 1 times [2022-11-20 09:30:54,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:54,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147318313] [2022-11-20 09:30:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:54,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:55,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:55,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:55,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147318313] [2022-11-20 09:30:55,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147318313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:55,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:55,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:55,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054143362] [2022-11-20 09:30:55,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:55,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:55,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:55,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:55,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:55,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 274 [2022-11-20 09:30:55,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 753 transitions, 4088 flow. Second operand has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:55,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:55,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 274 [2022-11-20 09:30:55,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:59,148 INFO L130 PetriNetUnfolder]: 4713/13231 cut-off events. [2022-11-20 09:30:59,149 INFO L131 PetriNetUnfolder]: For 12244/12419 co-relation queries the response was YES. [2022-11-20 09:30:59,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37017 conditions, 13231 events. 4713/13231 cut-off events. For 12244/12419 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 106939 event pairs, 2343 based on Foata normal form. 0/12013 useless extension candidates. Maximal degree in co-relation 36872. Up to 8882 conditions per place. [2022-11-20 09:30:59,250 INFO L137 encePairwiseOnDemand]: 231/274 looper letters, 667 selfloop transitions, 180 changer transitions 0/995 dead transitions. [2022-11-20 09:30:59,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 995 transitions, 6860 flow [2022-11-20 09:30:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:59,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:59,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1221 transitions. [2022-11-20 09:30:59,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7427007299270073 [2022-11-20 09:30:59,254 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1221 transitions. [2022-11-20 09:30:59,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1221 transitions. [2022-11-20 09:30:59,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:59,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1221 transitions. [2022-11-20 09:30:59,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.5) internal successors, (1221), 6 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,264 INFO L175 Difference]: Start difference. First operand has 310 places, 753 transitions, 4088 flow. Second operand 6 states and 1221 transitions. [2022-11-20 09:30:59,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 995 transitions, 6860 flow [2022-11-20 09:30:59,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 995 transitions, 6806 flow, removed 27 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:59,338 INFO L231 Difference]: Finished difference. Result has 320 places, 920 transitions, 5724 flow [2022-11-20 09:30:59,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4034, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5724, PETRI_PLACES=320, PETRI_TRANSITIONS=920} [2022-11-20 09:30:59,340 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 45 predicate places. [2022-11-20 09:30:59,340 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 920 transitions, 5724 flow [2022-11-20 09:30:59,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:59,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:59,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:59,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:30:59,342 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:30:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash -771758377, now seen corresponding path program 1 times [2022-11-20 09:30:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:59,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370371985] [2022-11-20 09:30:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:00,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:00,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370371985] [2022-11-20 09:31:00,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370371985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:00,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:00,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 09:31:00,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60971348] [2022-11-20 09:31:00,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:00,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:31:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:31:00,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:31:00,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 274 [2022-11-20 09:31:00,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 920 transitions, 5724 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:00,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 274 [2022-11-20 09:31:00,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:08,875 INFO L130 PetriNetUnfolder]: 6481/16970 cut-off events. [2022-11-20 09:31:08,876 INFO L131 PetriNetUnfolder]: For 21720/21744 co-relation queries the response was YES. [2022-11-20 09:31:08,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52749 conditions, 16970 events. 6481/16970 cut-off events. For 21720/21744 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 137235 event pairs, 1989 based on Foata normal form. 24/15751 useless extension candidates. Maximal degree in co-relation 52586. Up to 11125 conditions per place. [2022-11-20 09:31:09,001 INFO L137 encePairwiseOnDemand]: 220/274 looper letters, 1254 selfloop transitions, 273 changer transitions 1/1641 dead transitions. [2022-11-20 09:31:09,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1641 transitions, 12480 flow [2022-11-20 09:31:09,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-20 09:31:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-11-20 09:31:09,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 4821 transitions. [2022-11-20 09:31:09,016 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.502711157455683 [2022-11-20 09:31:09,016 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 4821 transitions. [2022-11-20 09:31:09,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 4821 transitions. [2022-11-20 09:31:09,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:09,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 4821 transitions. [2022-11-20 09:31:09,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 137.74285714285713) internal successors, (4821), 35 states have internal predecessors, (4821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:09,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 274.0) internal successors, (9864), 36 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:09,050 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 274.0) internal successors, (9864), 36 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:09,051 INFO L175 Difference]: Start difference. First operand has 320 places, 920 transitions, 5724 flow. Second operand 35 states and 4821 transitions. [2022-11-20 09:31:09,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 1641 transitions, 12480 flow [2022-11-20 09:31:09,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1641 transitions, 12120 flow, removed 180 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:09,211 INFO L231 Difference]: Finished difference. Result has 382 places, 1030 transitions, 7123 flow [2022-11-20 09:31:09,213 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=5364, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=7123, PETRI_PLACES=382, PETRI_TRANSITIONS=1030} [2022-11-20 09:31:09,213 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 107 predicate places. [2022-11-20 09:31:09,214 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 1030 transitions, 7123 flow [2022-11-20 09:31:09,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:09,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:09,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:09,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:31:09,216 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:31:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1713804749, now seen corresponding path program 2 times [2022-11-20 09:31:09,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:09,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024477778] [2022-11-20 09:31:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:09,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:10,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:10,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024477778] [2022-11-20 09:31:10,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024477778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:10,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:10,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 09:31:10,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703687156] [2022-11-20 09:31:10,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:10,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:31:10,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:31:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:31:10,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 274 [2022-11-20 09:31:10,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 1030 transitions, 7123 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:10,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:10,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 274 [2022-11-20 09:31:10,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:24,540 INFO L130 PetriNetUnfolder]: 12440/32044 cut-off events. [2022-11-20 09:31:24,540 INFO L131 PetriNetUnfolder]: For 56580/56683 co-relation queries the response was YES. [2022-11-20 09:31:24,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106693 conditions, 32044 events. 12440/32044 cut-off events. For 56580/56683 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 293832 event pairs, 676 based on Foata normal form. 46/29644 useless extension candidates. Maximal degree in co-relation 106501. Up to 6583 conditions per place. [2022-11-20 09:31:24,967 INFO L137 encePairwiseOnDemand]: 219/274 looper letters, 2377 selfloop transitions, 352 changer transitions 1/2843 dead transitions. [2022-11-20 09:31:24,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 2843 transitions, 24630 flow [2022-11-20 09:31:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-20 09:31:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-20 09:31:24,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5947 transitions. [2022-11-20 09:31:24,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5167709419534237 [2022-11-20 09:31:24,985 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5947 transitions. [2022-11-20 09:31:24,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5947 transitions. [2022-11-20 09:31:24,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:24,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5947 transitions. [2022-11-20 09:31:25,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 141.5952380952381) internal successors, (5947), 42 states have internal predecessors, (5947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:25,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:25,233 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:25,233 INFO L175 Difference]: Start difference. First operand has 382 places, 1030 transitions, 7123 flow. Second operand 42 states and 5947 transitions. [2022-11-20 09:31:25,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 2843 transitions, 24630 flow [2022-11-20 09:31:25,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 2843 transitions, 24510 flow, removed 60 selfloop flow, removed 0 redundant places. [2022-11-20 09:31:25,685 INFO L231 Difference]: Finished difference. Result has 451 places, 1322 transitions, 11384 flow [2022-11-20 09:31:25,686 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=7021, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1030, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=772, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=11384, PETRI_PLACES=451, PETRI_TRANSITIONS=1322} [2022-11-20 09:31:25,687 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 176 predicate places. [2022-11-20 09:31:25,687 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 1322 transitions, 11384 flow [2022-11-20 09:31:25,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:25,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:25,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:25,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:31:25,690 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:31:25,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1047548564, now seen corresponding path program 1 times [2022-11-20 09:31:25,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:25,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030054116] [2022-11-20 09:31:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:25,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:26,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:26,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:26,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030054116] [2022-11-20 09:31:26,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030054116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:26,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:26,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 09:31:26,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501076609] [2022-11-20 09:31:26,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:26,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:31:26,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:26,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:31:26,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:31:26,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 274 [2022-11-20 09:31:26,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1322 transitions, 11384 flow. Second operand has 15 states, 15 states have (on average 112.8) internal successors, (1692), 15 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:26,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:26,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 274 [2022-11-20 09:31:26,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:31:50,537 INFO L130 PetriNetUnfolder]: 18061/47544 cut-off events. [2022-11-20 09:31:50,538 INFO L131 PetriNetUnfolder]: For 109949/110110 co-relation queries the response was YES. [2022-11-20 09:31:51,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165009 conditions, 47544 events. 18061/47544 cut-off events. For 109949/110110 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 475384 event pairs, 4266 based on Foata normal form. 54/43946 useless extension candidates. Maximal degree in co-relation 164905. Up to 22204 conditions per place. [2022-11-20 09:31:51,398 INFO L137 encePairwiseOnDemand]: 225/274 looper letters, 2675 selfloop transitions, 288 changer transitions 2/3093 dead transitions. [2022-11-20 09:31:51,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 3093 transitions, 30434 flow [2022-11-20 09:31:51,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 09:31:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-20 09:31:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3807 transitions. [2022-11-20 09:31:51,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5789233576642335 [2022-11-20 09:31:51,406 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3807 transitions. [2022-11-20 09:31:51,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3807 transitions. [2022-11-20 09:31:51,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:51,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3807 transitions. [2022-11-20 09:31:51,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 158.625) internal successors, (3807), 24 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:51,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 274.0) internal successors, (6850), 25 states have internal predecessors, (6850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:51,430 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 274.0) internal successors, (6850), 25 states have internal predecessors, (6850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:51,430 INFO L175 Difference]: Start difference. First operand has 451 places, 1322 transitions, 11384 flow. Second operand 24 states and 3807 transitions. [2022-11-20 09:31:51,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 3093 transitions, 30434 flow [2022-11-20 09:31:52,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 3093 transitions, 30215 flow, removed 83 selfloop flow, removed 2 redundant places. [2022-11-20 09:31:52,630 INFO L231 Difference]: Finished difference. Result has 483 places, 1534 transitions, 14235 flow [2022-11-20 09:31:52,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=11221, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1084, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14235, PETRI_PLACES=483, PETRI_TRANSITIONS=1534} [2022-11-20 09:31:52,631 INFO L288 CegarLoopForPetriNet]: 275 programPoint places, 208 predicate places. [2022-11-20 09:31:52,631 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 1534 transitions, 14235 flow [2022-11-20 09:31:52,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 112.8) internal successors, (1692), 15 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:52,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:52,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:52,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:31:52,633 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-11-20 09:31:52,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:52,633 INFO L85 PathProgramCache]: Analyzing trace with hash -501117455, now seen corresponding path program 3 times [2022-11-20 09:31:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:52,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759238465] [2022-11-20 09:31:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:52,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:53,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:53,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759238465] [2022-11-20 09:31:53,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759238465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:53,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:53,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-20 09:31:53,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995496593] [2022-11-20 09:31:53,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:53,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-20 09:31:53,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:53,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:31:53,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:31:53,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 274 [2022-11-20 09:31:53,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1534 transitions, 14235 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:53,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:31:53,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 274 [2022-11-20 09:31:53,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand