./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:53:15,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:53:16,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:53:16,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:53:16,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:53:16,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:53:16,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:53:16,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:53:16,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:53:16,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:53:16,186 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:53:16,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:53:16,187 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:53:16,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:53:16,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:53:16,190 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:53:16,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:53:16,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:53:16,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:53:16,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:53:16,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:53:16,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:53:16,193 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:53:16,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:53:16,194 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:53:16,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:53:16,195 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:53:16,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:53:16,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:53:16,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:53:16,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:16,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:53:16,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:53:16,199 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:53:16,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:53:16,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:53:16,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:53:16,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:53:16,200 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:53:16,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:53:16,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:53:16,201 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b5f4c57d88bf6e97d091c1ec0f5525d1ae2da6c31cffbcaaf02c59d6e6570e5 [2023-11-26 11:53:16,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:53:16,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:53:16,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:53:16,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:53:16,573 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:53:16,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2023-11-26 11:53:19,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:53:20,133 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:53:20,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/sv-benchmarks/c/goblint-regression/04-mutex_12-ptr_nr.i [2023-11-26 11:53:20,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/data/7bfdfb4e1/92954565e5294a70b4fe8c37cc544a24/FLAGa1dbcb33b [2023-11-26 11:53:20,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/data/7bfdfb4e1/92954565e5294a70b4fe8c37cc544a24 [2023-11-26 11:53:20,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:53:20,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:53:20,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:20,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:53:20,197 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:53:20,198 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:20" (1/1) ... [2023-11-26 11:53:20,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d9a9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:20, skipping insertion in model container [2023-11-26 11:53:20,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:53:20" (1/1) ... [2023-11-26 11:53:20,276 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:53:20,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:20,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:53:20,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:53:21,001 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:53:21,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21 WrapperNode [2023-11-26 11:53:21,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:53:21,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:21,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:53:21,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:53:21,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,104 INFO L138 Inliner]: procedures = 263, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2023-11-26 11:53:21,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:53:21,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:53:21,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:53:21,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:53:21,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,145 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:53:21,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:53:21,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:53:21,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:53:21,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (1/1) ... [2023-11-26 11:53:21,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:53:21,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:53:21,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:53:21,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:53:21,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:53:21,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:53:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:53:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:53:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:53:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:53:21,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:53:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 11:53:21,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 11:53:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:53:21,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:53:21,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:53:21,273 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:53:21,460 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:53:21,463 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:53:21,719 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:53:21,746 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:53:21,747 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:53:21,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:21 BoogieIcfgContainer [2023-11-26 11:53:21,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:53:21,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:53:21,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:53:21,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:53:21,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:53:20" (1/3) ... [2023-11-26 11:53:21,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:21, skipping insertion in model container [2023-11-26 11:53:21,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:53:21" (2/3) ... [2023-11-26 11:53:21,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@412c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:53:21, skipping insertion in model container [2023-11-26 11:53:21,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:21" (3/3) ... [2023-11-26 11:53:21,759 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_12-ptr_nr.i [2023-11-26 11:53:21,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:53:21,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:53:21,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-26 11:53:21,781 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:53:21,851 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-26 11:53:21,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 193 flow [2023-11-26 11:53:21,950 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2023-11-26 11:53:21,951 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:53:21,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 92 events. 0/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-26 11:53:21,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 193 flow [2023-11-26 11:53:21,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 84 transitions, 171 flow [2023-11-26 11:53:21,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:53:21,979 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=LoopHeads, 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;@5f0f0837, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:53:21,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 11:53:21,995 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:53:21,996 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-11-26 11:53:21,996 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:53:21,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:21,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:21,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:22,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:22,006 INFO L85 PathProgramCache]: Analyzing trace with hash -193461361, now seen corresponding path program 1 times [2023-11-26 11:53:22,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:22,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144577040] [2023-11-26 11:53:22,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:22,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:23,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:23,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:23,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144577040] [2023-11-26 11:53:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144577040] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:23,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:23,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:23,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314584378] [2023-11-26 11:53:23,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:23,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:23,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:23,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:23,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:23,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 93 [2023-11-26 11:53:23,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:23,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:23,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 93 [2023-11-26 11:53:23,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:23,830 INFO L124 PetriNetUnfolderBase]: 96/426 cut-off events. [2023-11-26 11:53:23,831 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:53:23,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 426 events. 96/426 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2093 event pairs, 43 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 613. Up to 169 conditions per place. [2023-11-26 11:53:23,841 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 28 selfloop transitions, 22 changer transitions 0/113 dead transitions. [2023-11-26 11:53:23,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 113 transitions, 329 flow [2023-11-26 11:53:23,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:23,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:23,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 477 transitions. [2023-11-26 11:53:23,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8548387096774194 [2023-11-26 11:53:23,865 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 477 transitions. [2023-11-26 11:53:23,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 477 transitions. [2023-11-26 11:53:23,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:23,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 477 transitions. [2023-11-26 11:53:23,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:23,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:23,891 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:23,893 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 171 flow. Second operand 6 states and 477 transitions. [2023-11-26 11:53:23,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 113 transitions, 329 flow [2023-11-26 11:53:23,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 113 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:53:23,908 INFO L231 Difference]: Finished difference. Result has 97 places, 105 transitions, 320 flow [2023-11-26 11:53:23,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=97, PETRI_TRANSITIONS=105} [2023-11-26 11:53:23,914 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2023-11-26 11:53:23,914 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 105 transitions, 320 flow [2023-11-26 11:53:23,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:23,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:23,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:23,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:53:23,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:23,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash -766575140, now seen corresponding path program 1 times [2023-11-26 11:53:23,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:23,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158851116] [2023-11-26 11:53:23,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:23,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:24,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:24,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158851116] [2023-11-26 11:53:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158851116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:24,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:24,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:24,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738980936] [2023-11-26 11:53:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:24,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:24,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:24,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 93 [2023-11-26 11:53:24,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 105 transitions, 320 flow. Second operand has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:24,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:24,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 93 [2023-11-26 11:53:24,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:24,863 INFO L124 PetriNetUnfolderBase]: 139/603 cut-off events. [2023-11-26 11:53:24,864 INFO L125 PetriNetUnfolderBase]: For 135/146 co-relation queries the response was YES. [2023-11-26 11:53:24,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 603 events. 139/603 cut-off events. For 135/146 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3464 event pairs, 49 based on Foata normal form. 1/566 useless extension candidates. Maximal degree in co-relation 1045. Up to 232 conditions per place. [2023-11-26 11:53:24,871 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 41 selfloop transitions, 26 changer transitions 0/134 dead transitions. [2023-11-26 11:53:24,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 134 transitions, 530 flow [2023-11-26 11:53:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:24,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:24,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 477 transitions. [2023-11-26 11:53:24,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8548387096774194 [2023-11-26 11:53:24,878 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 477 transitions. [2023-11-26 11:53:24,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 477 transitions. [2023-11-26 11:53:24,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:24,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 477 transitions. [2023-11-26 11:53:24,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:24,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:24,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:24,883 INFO L175 Difference]: Start difference. First operand has 97 places, 105 transitions, 320 flow. Second operand 6 states and 477 transitions. [2023-11-26 11:53:24,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 134 transitions, 530 flow [2023-11-26 11:53:24,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 134 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:53:24,895 INFO L231 Difference]: Finished difference. Result has 107 places, 126 transitions, 504 flow [2023-11-26 11:53:24,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=107, PETRI_TRANSITIONS=126} [2023-11-26 11:53:24,896 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2023-11-26 11:53:24,897 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 126 transitions, 504 flow [2023-11-26 11:53:24,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.33333333333333) internal successors, (434), 6 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:24,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:24,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:24,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:53:24,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:24,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1302706395, now seen corresponding path program 1 times [2023-11-26 11:53:24,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:24,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029732795] [2023-11-26 11:53:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:24,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:25,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:25,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:25,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029732795] [2023-11-26 11:53:25,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029732795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:25,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:25,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:25,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725859450] [2023-11-26 11:53:25,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:25,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:25,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:25,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:25,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:25,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 93 [2023-11-26 11:53:25,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 126 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:25,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:25,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 93 [2023-11-26 11:53:25,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:25,950 INFO L124 PetriNetUnfolderBase]: 375/1109 cut-off events. [2023-11-26 11:53:25,951 INFO L125 PetriNetUnfolderBase]: For 624/644 co-relation queries the response was YES. [2023-11-26 11:53:25,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 1109 events. 375/1109 cut-off events. For 624/644 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6596 event pairs, 125 based on Foata normal form. 2/1042 useless extension candidates. Maximal degree in co-relation 2650. Up to 668 conditions per place. [2023-11-26 11:53:25,962 INFO L140 encePairwiseOnDemand]: 74/93 looper letters, 74 selfloop transitions, 69 changer transitions 0/197 dead transitions. [2023-11-26 11:53:25,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 197 transitions, 1058 flow [2023-11-26 11:53:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:25,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2023-11-26 11:53:25,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8225806451612904 [2023-11-26 11:53:25,965 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 459 transitions. [2023-11-26 11:53:25,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 459 transitions. [2023-11-26 11:53:25,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:25,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 459 transitions. [2023-11-26 11:53:25,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.5) internal successors, (459), 6 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:25,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:25,970 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:25,971 INFO L175 Difference]: Start difference. First operand has 107 places, 126 transitions, 504 flow. Second operand 6 states and 459 transitions. [2023-11-26 11:53:25,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 197 transitions, 1058 flow [2023-11-26 11:53:25,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 197 transitions, 1058 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:53:25,982 INFO L231 Difference]: Finished difference. Result has 117 places, 189 transitions, 1082 flow [2023-11-26 11:53:25,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=117, PETRI_TRANSITIONS=189} [2023-11-26 11:53:25,984 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 29 predicate places. [2023-11-26 11:53:25,984 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 189 transitions, 1082 flow [2023-11-26 11:53:25,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 6 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:25,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:25,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:25,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:53:25,985 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:25,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:25,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1926806923, now seen corresponding path program 1 times [2023-11-26 11:53:25,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:25,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063499619] [2023-11-26 11:53:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:25,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:26,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:26,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063499619] [2023-11-26 11:53:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063499619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:26,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:26,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:26,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894187364] [2023-11-26 11:53:26,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:26,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:26,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:26,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 93 [2023-11-26 11:53:26,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 189 transitions, 1082 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:26,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:26,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 93 [2023-11-26 11:53:26,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:26,900 INFO L124 PetriNetUnfolderBase]: 447/1285 cut-off events. [2023-11-26 11:53:26,901 INFO L125 PetriNetUnfolderBase]: For 1655/1702 co-relation queries the response was YES. [2023-11-26 11:53:26,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3955 conditions, 1285 events. 447/1285 cut-off events. For 1655/1702 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8023 event pairs, 105 based on Foata normal form. 7/1244 useless extension candidates. Maximal degree in co-relation 3904. Up to 758 conditions per place. [2023-11-26 11:53:26,917 INFO L140 encePairwiseOnDemand]: 78/93 looper letters, 128 selfloop transitions, 67 changer transitions 0/250 dead transitions. [2023-11-26 11:53:26,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 250 transitions, 1826 flow [2023-11-26 11:53:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:26,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 432 transitions. [2023-11-26 11:53:26,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7741935483870968 [2023-11-26 11:53:26,920 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 432 transitions. [2023-11-26 11:53:26,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 432 transitions. [2023-11-26 11:53:26,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:26,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 432 transitions. [2023-11-26 11:53:26,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:26,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:26,925 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:26,925 INFO L175 Difference]: Start difference. First operand has 117 places, 189 transitions, 1082 flow. Second operand 6 states and 432 transitions. [2023-11-26 11:53:26,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 250 transitions, 1826 flow [2023-11-26 11:53:26,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 250 transitions, 1770 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-11-26 11:53:26,948 INFO L231 Difference]: Finished difference. Result has 127 places, 242 transitions, 1686 flow [2023-11-26 11:53:26,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1686, PETRI_PLACES=127, PETRI_TRANSITIONS=242} [2023-11-26 11:53:26,949 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 39 predicate places. [2023-11-26 11:53:26,949 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 242 transitions, 1686 flow [2023-11-26 11:53:26,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:26,950 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:26,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:26,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:53:26,951 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:26,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:26,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1118205635, now seen corresponding path program 1 times [2023-11-26 11:53:26,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:26,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779040058] [2023-11-26 11:53:26,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:26,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:26,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:27,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:27,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:27,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779040058] [2023-11-26 11:53:27,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779040058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:27,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:27,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:53:27,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818437485] [2023-11-26 11:53:27,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:27,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:53:27,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:27,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:53:27,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:53:27,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 93 [2023-11-26 11:53:27,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 242 transitions, 1686 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:27,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 93 [2023-11-26 11:53:27,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:27,134 INFO L124 PetriNetUnfolderBase]: 40/227 cut-off events. [2023-11-26 11:53:27,134 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2023-11-26 11:53:27,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 227 events. 40/227 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 650 event pairs, 5 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 545. Up to 64 conditions per place. [2023-11-26 11:53:27,137 INFO L140 encePairwiseOnDemand]: 89/93 looper letters, 2 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2023-11-26 11:53:27,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 102 transitions, 452 flow [2023-11-26 11:53:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:53:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:53:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2023-11-26 11:53:27,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.953405017921147 [2023-11-26 11:53:27,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 266 transitions. [2023-11-26 11:53:27,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 266 transitions. [2023-11-26 11:53:27,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:27,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 266 transitions. [2023-11-26 11:53:27,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,143 INFO L175 Difference]: Start difference. First operand has 127 places, 242 transitions, 1686 flow. Second operand 3 states and 266 transitions. [2023-11-26 11:53:27,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 102 transitions, 452 flow [2023-11-26 11:53:27,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 102 transitions, 326 flow, removed 33 selfloop flow, removed 30 redundant places. [2023-11-26 11:53:27,150 INFO L231 Difference]: Finished difference. Result has 96 places, 102 transitions, 322 flow [2023-11-26 11:53:27,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=96, PETRI_TRANSITIONS=102} [2023-11-26 11:53:27,153 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2023-11-26 11:53:27,153 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 102 transitions, 322 flow [2023-11-26 11:53:27,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:27,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:53:27,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:27,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:27,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1146501514, now seen corresponding path program 1 times [2023-11-26 11:53:27,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:27,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310607326] [2023-11-26 11:53:27,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:27,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:27,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:27,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310607326] [2023-11-26 11:53:27,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310607326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:27,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:27,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:53:27,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576570653] [2023-11-26 11:53:27,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:27,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:53:27,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:27,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:53:27,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:53:27,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 93 [2023-11-26 11:53:27,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 102 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:27,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 93 [2023-11-26 11:53:27,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:27,900 INFO L124 PetriNetUnfolderBase]: 84/344 cut-off events. [2023-11-26 11:53:27,900 INFO L125 PetriNetUnfolderBase]: For 135/161 co-relation queries the response was YES. [2023-11-26 11:53:27,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 344 events. 84/344 cut-off events. For 135/161 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1319 event pairs, 5 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 790. Up to 135 conditions per place. [2023-11-26 11:53:27,903 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 39 selfloop transitions, 25 changer transitions 10/136 dead transitions. [2023-11-26 11:53:27,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 136 transitions, 624 flow [2023-11-26 11:53:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:53:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:53:27,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 464 transitions. [2023-11-26 11:53:27,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8315412186379928 [2023-11-26 11:53:27,907 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 464 transitions. [2023-11-26 11:53:27,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 464 transitions. [2023-11-26 11:53:27,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:27,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 464 transitions. [2023-11-26 11:53:27,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.33333333333333) internal successors, (464), 6 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,911 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 93.0) internal successors, (651), 7 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,911 INFO L175 Difference]: Start difference. First operand has 96 places, 102 transitions, 322 flow. Second operand 6 states and 464 transitions. [2023-11-26 11:53:27,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 136 transitions, 624 flow [2023-11-26 11:53:27,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 136 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:53:27,923 INFO L231 Difference]: Finished difference. Result has 105 places, 122 transitions, 534 flow [2023-11-26 11:53:27,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=105, PETRI_TRANSITIONS=122} [2023-11-26 11:53:27,927 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 17 predicate places. [2023-11-26 11:53:27,928 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 122 transitions, 534 flow [2023-11-26 11:53:27,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:27,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:27,928 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:27,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:53:27,929 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:27,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:27,930 INFO L85 PathProgramCache]: Analyzing trace with hash -47605608, now seen corresponding path program 1 times [2023-11-26 11:53:27,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:27,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112783345] [2023-11-26 11:53:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:27,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:28,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:28,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112783345] [2023-11-26 11:53:28,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112783345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:28,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:28,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:53:28,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756980815] [2023-11-26 11:53:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:28,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:53:28,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:28,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:53:28,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:53:29,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 93 [2023-11-26 11:53:29,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 122 transitions, 534 flow. Second operand has 11 states, 11 states have (on average 57.63636363636363) internal successors, (634), 11 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:29,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 93 [2023-11-26 11:53:29,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:29,740 INFO L124 PetriNetUnfolderBase]: 112/415 cut-off events. [2023-11-26 11:53:29,740 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2023-11-26 11:53:29,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 415 events. 112/415 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1654 event pairs, 7 based on Foata normal form. 9/423 useless extension candidates. Maximal degree in co-relation 1218. Up to 152 conditions per place. [2023-11-26 11:53:29,745 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 78 selfloop transitions, 29 changer transitions 5/158 dead transitions. [2023-11-26 11:53:29,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 158 transitions, 968 flow [2023-11-26 11:53:29,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:53:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:53:29,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 615 transitions. [2023-11-26 11:53:29,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6612903225806451 [2023-11-26 11:53:29,748 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 615 transitions. [2023-11-26 11:53:29,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 615 transitions. [2023-11-26 11:53:29,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:29,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 615 transitions. [2023-11-26 11:53:29,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 61.5) internal successors, (615), 10 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,754 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,755 INFO L175 Difference]: Start difference. First operand has 105 places, 122 transitions, 534 flow. Second operand 10 states and 615 transitions. [2023-11-26 11:53:29,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 158 transitions, 968 flow [2023-11-26 11:53:29,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 158 transitions, 950 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-26 11:53:29,764 INFO L231 Difference]: Finished difference. Result has 113 places, 119 transitions, 556 flow [2023-11-26 11:53:29,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=556, PETRI_PLACES=113, PETRI_TRANSITIONS=119} [2023-11-26 11:53:29,765 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 25 predicate places. [2023-11-26 11:53:29,765 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 119 transitions, 556 flow [2023-11-26 11:53:29,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.63636363636363) internal successors, (634), 11 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:29,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:29,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:29,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:53:29,767 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:29,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1758090606, now seen corresponding path program 1 times [2023-11-26 11:53:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:29,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959730839] [2023-11-26 11:53:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:30,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:30,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959730839] [2023-11-26 11:53:30,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959730839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:30,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:30,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:53:30,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029424867] [2023-11-26 11:53:30,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:30,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:53:30,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:30,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:53:30,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:53:31,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2023-11-26 11:53:31,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 119 transitions, 556 flow. Second operand has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:31,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:31,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2023-11-26 11:53:31,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:31,832 INFO L124 PetriNetUnfolderBase]: 75/349 cut-off events. [2023-11-26 11:53:31,832 INFO L125 PetriNetUnfolderBase]: For 402/458 co-relation queries the response was YES. [2023-11-26 11:53:31,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 349 events. 75/349 cut-off events. For 402/458 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1297 event pairs, 12 based on Foata normal form. 25/369 useless extension candidates. Maximal degree in co-relation 1041. Up to 139 conditions per place. [2023-11-26 11:53:31,836 INFO L140 encePairwiseOnDemand]: 79/93 looper letters, 41 selfloop transitions, 27 changer transitions 12/138 dead transitions. [2023-11-26 11:53:31,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 138 transitions, 810 flow [2023-11-26 11:53:31,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:53:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:53:31,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 723 transitions. [2023-11-26 11:53:31,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7774193548387097 [2023-11-26 11:53:31,840 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 723 transitions. [2023-11-26 11:53:31,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 723 transitions. [2023-11-26 11:53:31,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:31,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 723 transitions. [2023-11-26 11:53:31,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:31,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:31,848 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:31,848 INFO L175 Difference]: Start difference. First operand has 113 places, 119 transitions, 556 flow. Second operand 10 states and 723 transitions. [2023-11-26 11:53:31,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 138 transitions, 810 flow [2023-11-26 11:53:31,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 138 transitions, 701 flow, removed 6 selfloop flow, removed 10 redundant places. [2023-11-26 11:53:31,858 INFO L231 Difference]: Finished difference. Result has 114 places, 119 transitions, 529 flow [2023-11-26 11:53:31,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=529, PETRI_PLACES=114, PETRI_TRANSITIONS=119} [2023-11-26 11:53:31,861 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 26 predicate places. [2023-11-26 11:53:31,861 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 119 transitions, 529 flow [2023-11-26 11:53:31,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:31,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:31,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:31,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:53:31,863 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:31,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1386046106, now seen corresponding path program 2 times [2023-11-26 11:53:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:31,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661237507] [2023-11-26 11:53:31,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:31,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:32,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:32,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:32,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661237507] [2023-11-26 11:53:32,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661237507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:32,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:32,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:53:32,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435901695] [2023-11-26 11:53:32,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:32,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:53:32,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:32,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:53:32,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:53:33,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2023-11-26 11:53:33,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 119 transitions, 529 flow. Second operand has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:33,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2023-11-26 11:53:33,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:33,562 INFO L124 PetriNetUnfolderBase]: 118/454 cut-off events. [2023-11-26 11:53:33,563 INFO L125 PetriNetUnfolderBase]: For 489/516 co-relation queries the response was YES. [2023-11-26 11:53:33,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 454 events. 118/454 cut-off events. For 489/516 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1944 event pairs, 6 based on Foata normal form. 30/482 useless extension candidates. Maximal degree in co-relation 1343. Up to 121 conditions per place. [2023-11-26 11:53:33,567 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 42 selfloop transitions, 5 changer transitions 78/183 dead transitions. [2023-11-26 11:53:33,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 183 transitions, 1181 flow [2023-11-26 11:53:33,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:53:33,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:53:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 723 transitions. [2023-11-26 11:53:33,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7774193548387097 [2023-11-26 11:53:33,571 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 723 transitions. [2023-11-26 11:53:33,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 723 transitions. [2023-11-26 11:53:33,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:33,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 723 transitions. [2023-11-26 11:53:33,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,578 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,578 INFO L175 Difference]: Start difference. First operand has 114 places, 119 transitions, 529 flow. Second operand 10 states and 723 transitions. [2023-11-26 11:53:33,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 183 transitions, 1181 flow [2023-11-26 11:53:33,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 183 transitions, 1129 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-11-26 11:53:33,587 INFO L231 Difference]: Finished difference. Result has 119 places, 103 transitions, 429 flow [2023-11-26 11:53:33,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=429, PETRI_PLACES=119, PETRI_TRANSITIONS=103} [2023-11-26 11:53:33,588 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 31 predicate places. [2023-11-26 11:53:33,589 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 103 transitions, 429 flow [2023-11-26 11:53:33,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:33,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:33,590 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:33,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:53:33,590 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:33,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:33,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1160629568, now seen corresponding path program 3 times [2023-11-26 11:53:33,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:33,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647876153] [2023-11-26 11:53:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:33,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:34,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:34,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647876153] [2023-11-26 11:53:34,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647876153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:34,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:34,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:53:34,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675997642] [2023-11-26 11:53:34,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:34,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:53:34,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:34,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:53:34,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:53:35,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2023-11-26 11:53:35,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 103 transitions, 429 flow. Second operand has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:35,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2023-11-26 11:53:35,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:35,471 INFO L124 PetriNetUnfolderBase]: 58/292 cut-off events. [2023-11-26 11:53:35,472 INFO L125 PetriNetUnfolderBase]: For 650/664 co-relation queries the response was YES. [2023-11-26 11:53:35,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 292 events. 58/292 cut-off events. For 650/664 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 959 event pairs, 11 based on Foata normal form. 24/312 useless extension candidates. Maximal degree in co-relation 840. Up to 100 conditions per place. [2023-11-26 11:53:35,474 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 37 selfloop transitions, 12 changer transitions 26/133 dead transitions. [2023-11-26 11:53:35,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 774 flow [2023-11-26 11:53:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:53:35,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:53:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 779 transitions. [2023-11-26 11:53:35,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.761485826001955 [2023-11-26 11:53:35,478 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 779 transitions. [2023-11-26 11:53:35,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 779 transitions. [2023-11-26 11:53:35,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:35,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 779 transitions. [2023-11-26 11:53:35,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.81818181818181) internal successors, (779), 11 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,485 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,486 INFO L175 Difference]: Start difference. First operand has 119 places, 103 transitions, 429 flow. Second operand 11 states and 779 transitions. [2023-11-26 11:53:35,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 774 flow [2023-11-26 11:53:35,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 133 transitions, 710 flow, removed 26 selfloop flow, removed 8 redundant places. [2023-11-26 11:53:35,493 INFO L231 Difference]: Finished difference. Result has 121 places, 103 transitions, 422 flow [2023-11-26 11:53:35,495 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=422, PETRI_PLACES=121, PETRI_TRANSITIONS=103} [2023-11-26 11:53:35,496 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 33 predicate places. [2023-11-26 11:53:35,496 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 103 transitions, 422 flow [2023-11-26 11:53:35,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:35,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:35,497 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:35,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:53:35,498 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:35,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:35,498 INFO L85 PathProgramCache]: Analyzing trace with hash 103337668, now seen corresponding path program 4 times [2023-11-26 11:53:35,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:35,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326454292] [2023-11-26 11:53:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:35,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:36,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326454292] [2023-11-26 11:53:36,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326454292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:36,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:36,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:53:36,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425034979] [2023-11-26 11:53:36,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:36,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:53:36,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:36,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:53:36,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:53:36,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2023-11-26 11:53:36,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 103 transitions, 422 flow. Second operand has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:36,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:36,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2023-11-26 11:53:36,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:37,188 INFO L124 PetriNetUnfolderBase]: 79/321 cut-off events. [2023-11-26 11:53:37,188 INFO L125 PetriNetUnfolderBase]: For 662/680 co-relation queries the response was YES. [2023-11-26 11:53:37,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 321 events. 79/321 cut-off events. For 662/680 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1052 event pairs, 12 based on Foata normal form. 22/340 useless extension candidates. Maximal degree in co-relation 973. Up to 72 conditions per place. [2023-11-26 11:53:37,191 INFO L140 encePairwiseOnDemand]: 83/93 looper letters, 54 selfloop transitions, 22 changer transitions 14/148 dead transitions. [2023-11-26 11:53:37,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 148 transitions, 923 flow [2023-11-26 11:53:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:53:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:53:37,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 711 transitions. [2023-11-26 11:53:37,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7645161290322581 [2023-11-26 11:53:37,195 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 711 transitions. [2023-11-26 11:53:37,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 711 transitions. [2023-11-26 11:53:37,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:37,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 711 transitions. [2023-11-26 11:53:37,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 71.1) internal successors, (711), 10 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:37,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:37,202 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:37,203 INFO L175 Difference]: Start difference. First operand has 121 places, 103 transitions, 422 flow. Second operand 10 states and 711 transitions. [2023-11-26 11:53:37,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 148 transitions, 923 flow [2023-11-26 11:53:37,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 148 transitions, 859 flow, removed 11 selfloop flow, removed 10 redundant places. [2023-11-26 11:53:37,211 INFO L231 Difference]: Finished difference. Result has 122 places, 115 transitions, 572 flow [2023-11-26 11:53:37,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=572, PETRI_PLACES=122, PETRI_TRANSITIONS=115} [2023-11-26 11:53:37,212 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 34 predicate places. [2023-11-26 11:53:37,212 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 115 transitions, 572 flow [2023-11-26 11:53:37,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:37,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:53:37,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:37,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:53:37,214 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-26 11:53:37,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:53:37,214 INFO L85 PathProgramCache]: Analyzing trace with hash -867638266, now seen corresponding path program 5 times [2023-11-26 11:53:37,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:53:37,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027309811] [2023-11-26 11:53:37,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:53:37,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:53:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:53:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:53:37,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:53:37,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027309811] [2023-11-26 11:53:37,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027309811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:53:37,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:53:37,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:53:37,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395849533] [2023-11-26 11:53:37,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:53:37,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:53:37,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:53:37,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:53:37,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:53:38,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2023-11-26 11:53:38,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 115 transitions, 572 flow. Second operand has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:38,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:53:38,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2023-11-26 11:53:38,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:53:38,981 INFO L124 PetriNetUnfolderBase]: 53/254 cut-off events. [2023-11-26 11:53:38,981 INFO L125 PetriNetUnfolderBase]: For 687/699 co-relation queries the response was YES. [2023-11-26 11:53:38,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 254 events. 53/254 cut-off events. For 687/699 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 820 event pairs, 2 based on Foata normal form. 19/272 useless extension candidates. Maximal degree in co-relation 828. Up to 62 conditions per place. [2023-11-26 11:53:38,983 INFO L140 encePairwiseOnDemand]: 82/93 looper letters, 0 selfloop transitions, 0 changer transitions 142/142 dead transitions. [2023-11-26 11:53:38,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 142 transitions, 917 flow [2023-11-26 11:53:38,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:53:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:53:38,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 778 transitions. [2023-11-26 11:53:38,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7605083088954057 [2023-11-26 11:53:38,988 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 778 transitions. [2023-11-26 11:53:38,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 778 transitions. [2023-11-26 11:53:38,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:53:38,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 778 transitions. [2023-11-26 11:53:38,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 70.72727272727273) internal successors, (778), 11 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:38,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:38,996 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:38,996 INFO L175 Difference]: Start difference. First operand has 122 places, 115 transitions, 572 flow. Second operand 11 states and 778 transitions. [2023-11-26 11:53:38,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 142 transitions, 917 flow [2023-11-26 11:53:39,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 142 transitions, 882 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-11-26 11:53:39,004 INFO L231 Difference]: Finished difference. Result has 123 places, 0 transitions, 0 flow [2023-11-26 11:53:39,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=123, PETRI_TRANSITIONS=0} [2023-11-26 11:53:39,006 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 35 predicate places. [2023-11-26 11:53:39,006 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 0 transitions, 0 flow [2023-11-26 11:53:39,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.72727272727273) internal successors, (745), 11 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:53:39,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-26 11:53:39,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-26 11:53:39,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-26 11:53:39,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-11-26 11:53:39,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-11-26 11:53:39,014 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-26 11:53:39,015 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-26 11:53:39,016 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-26 11:53:39,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:53:39,017 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:53:39,023 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:53:39,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:53:39,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:53:39 BasicIcfg [2023-11-26 11:53:39,031 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:53:39,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:53:39,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:53:39,032 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:53:39,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:53:21" (3/4) ... [2023-11-26 11:53:39,035 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:53:39,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-26 11:53:39,045 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-26 11:53:39,046 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 11:53:39,046 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-26 11:53:39,139 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:53:39,142 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:53:39,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:53:39,143 INFO L158 Benchmark]: Toolchain (without parser) took 18955.43ms. Allocated memory was 119.5MB in the beginning and 285.2MB in the end (delta: 165.7MB). Free memory was 73.6MB in the beginning and 146.9MB in the end (delta: -73.4MB). Peak memory consumption was 94.0MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,143 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:53:39,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 811.12ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 73.2MB in the beginning and 133.1MB in the end (delta: -59.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.07ms. Allocated memory is still 163.6MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,145 INFO L158 Benchmark]: Boogie Preprocessor took 74.46ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 128.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,145 INFO L158 Benchmark]: RCFGBuilder took 568.55ms. Allocated memory is still 163.6MB. Free memory was 128.8MB in the beginning and 111.2MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,146 INFO L158 Benchmark]: TraceAbstraction took 17279.37ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 111.0MB in the beginning and 151.1MB in the end (delta: -40.2MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,146 INFO L158 Benchmark]: Witness Printer took 110.31ms. Allocated memory is still 285.2MB. Free memory was 151.1MB in the beginning and 146.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:53:39,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 811.12ms. Allocated memory was 119.5MB in the beginning and 163.6MB in the end (delta: 44.0MB). Free memory was 73.2MB in the beginning and 133.1MB in the end (delta: -59.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.07ms. Allocated memory is still 163.6MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.46ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 128.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 568.55ms. Allocated memory is still 163.6MB. Free memory was 128.8MB in the beginning and 111.2MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17279.37ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 111.0MB in the beginning and 151.1MB in the end (delta: -40.2MB). Peak memory consumption was 81.5MB. Max. memory is 16.1GB. * Witness Printer took 110.31ms. Allocated memory is still 285.2MB. Free memory was 151.1MB in the beginning and 146.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 933]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 121 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 9.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2202 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1663 mSDsluCounter, 814 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 713 mSDsCounter, 574 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6864 IncrementalHoareTripleChecker+Invalid, 7438 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 574 mSolverCounterUnsat, 101 mSDtfsCounter, 6864 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1686occurred in iteration=4, InterpolantAutomatonStates: 95, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 680 ConstructedInterpolants, 0 QuantifiedInterpolants, 5755 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:53:39,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7910b68-03b1-416e-a5a2-1439529eea5e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE