./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_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_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/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_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/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_4ff21484-3905-4253-b889-c8a2eef7004a/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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:58:14,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:58:14,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:58:14,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:58:14,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:58:14,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:58:14,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:58:14,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:58:14,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:58:14,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:58:14,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:58:14,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:58:14,357 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:58:14,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:58:14,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:58:14,359 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:58:14,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:58:14,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:58:14,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:58:14,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:58:14,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:58:14,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:58:14,363 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:58:14,363 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:58:14,364 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:58:14,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:58:14,365 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:58:14,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:58:14,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:58:14,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:58:14,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:14,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:58:14,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:58:14,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:58:14,373 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:58:14,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:58:14,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:58:14,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:58:14,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:58:14,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:58:14,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:58:14,375 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_4ff21484-3905-4253-b889-c8a2eef7004a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2023-11-26 11:58:14,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:58:14,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:58:14,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:58:14,764 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:58:14,764 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:58:14,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-26 11:58:17,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:58:18,167 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:58:18,167 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-26 11:58:18,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/data/19cb9583c/43c9adc7e810448ca3e7423750910026/FLAGc2a787182 [2023-11-26 11:58:18,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/data/19cb9583c/43c9adc7e810448ca3e7423750910026 [2023-11-26 11:58:18,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:58:18,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:58:18,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:18,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:58:18,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:58:18,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:18,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e4d3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18, skipping insertion in model container [2023-11-26 11:58:18,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:18,299 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:58:18,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:18,845 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:58:18,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:58:18,995 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:58:18,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18 WrapperNode [2023-11-26 11:58:18,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:58:18,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:18,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:58:18,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:58:19,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,062 INFO L138 Inliner]: procedures = 266, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2023-11-26 11:58:19,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:58:19,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:58:19,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:58:19,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:58:19,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:58:19,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:58:19,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:58:19,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:58:19,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (1/1) ... [2023-11-26 11:58:19,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:58:19,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:58:19,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:58:19,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:58:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:58:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:58:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:58:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:58:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:58:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:58:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 11:58:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 11:58:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:58:19,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:58:19,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:58:19,180 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 11:58:19,321 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:58:19,324 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:58:19,659 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:58:19,684 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:58:19,684 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:58:19,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:19 BoogieIcfgContainer [2023-11-26 11:58:19,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:58:19,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:58:19,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:58:19,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:58:19,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:58:18" (1/3) ... [2023-11-26 11:58:19,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0db14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:19, skipping insertion in model container [2023-11-26 11:58:19,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:58:18" (2/3) ... [2023-11-26 11:58:19,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b0db14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:58:19, skipping insertion in model container [2023-11-26 11:58:19,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:19" (3/3) ... [2023-11-26 11:58:19,697 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-11-26 11:58:19,706 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:58:19,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:58:19,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 11:58:19,719 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:58:19,786 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:58:19,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 91 transitions, 186 flow [2023-11-26 11:58:19,887 INFO L124 PetriNetUnfolderBase]: 1/93 cut-off events. [2023-11-26 11:58:19,887 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:58:19,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 1/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2023-11-26 11:58:19,891 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 91 transitions, 186 flow [2023-11-26 11:58:19,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 88 transitions, 179 flow [2023-11-26 11:58:19,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:58:19,915 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;@618af1f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:58:19,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 11:58:19,940 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:58:19,941 INFO L124 PetriNetUnfolderBase]: 1/70 cut-off events. [2023-11-26 11:58:19,941 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:58:19,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:19,942 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 11:58:19,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:19,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:19,949 INFO L85 PathProgramCache]: Analyzing trace with hash -557522652, now seen corresponding path program 1 times [2023-11-26 11:58:19,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:19,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802828775] [2023-11-26 11:58:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:19,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:21,240 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 11:58:21,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:21,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802828775] [2023-11-26 11:58:21,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802828775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:21,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:21,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:58:21,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855041057] [2023-11-26 11:58:21,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:21,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:21,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:21,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:21,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:21,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 91 [2023-11-26 11:58:21,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 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 11:58:21,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:21,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 91 [2023-11-26 11:58:21,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:21,834 INFO L124 PetriNetUnfolderBase]: 79/351 cut-off events. [2023-11-26 11:58:21,834 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:58:21,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 351 events. 79/351 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1508 event pairs, 25 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 477. Up to 130 conditions per place. [2023-11-26 11:58:21,840 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 21 selfloop transitions, 22 changer transitions 4/117 dead transitions. [2023-11-26 11:58:21,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 117 transitions, 331 flow [2023-11-26 11:58:21,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:58:21,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:58:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2023-11-26 11:58:21,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8901098901098901 [2023-11-26 11:58:21,859 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2023-11-26 11:58:21,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2023-11-26 11:58:21,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:21,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2023-11-26 11:58:21,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 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 11:58:21,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 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 11:58:21,878 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 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 11:58:21,880 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 179 flow. Second operand 6 states and 486 transitions. [2023-11-26 11:58:21,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 117 transitions, 331 flow [2023-11-26 11:58:21,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:58:21,889 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 328 flow [2023-11-26 11:58:21,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2023-11-26 11:58:21,895 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2023-11-26 11:58:21,895 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 328 flow [2023-11-26 11:58:21,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 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 11:58:21,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:21,896 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] [2023-11-26 11:58:21,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:58:21,897 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:21,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash -305209625, now seen corresponding path program 1 times [2023-11-26 11:58:21,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334583138] [2023-11-26 11:58:21,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:21,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:22,504 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 11:58:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:22,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334583138] [2023-11-26 11:58:22,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334583138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:22,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:22,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:58:22,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82486382] [2023-11-26 11:58:22,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:22,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:58:22,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:22,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:58:22,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:58:22,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 91 [2023-11-26 11:58:22,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 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 11:58:22,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:22,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 91 [2023-11-26 11:58:22,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:22,749 INFO L124 PetriNetUnfolderBase]: 132/492 cut-off events. [2023-11-26 11:58:22,749 INFO L125 PetriNetUnfolderBase]: For 136/144 co-relation queries the response was YES. [2023-11-26 11:58:22,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 492 events. 132/492 cut-off events. For 136/144 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2403 event pairs, 31 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 1021. Up to 218 conditions per place. [2023-11-26 11:58:22,755 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 39 selfloop transitions, 29 changer transitions 7/144 dead transitions. [2023-11-26 11:58:22,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 144 transitions, 618 flow [2023-11-26 11:58:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:58:22,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:58:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2023-11-26 11:58:22,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8626373626373627 [2023-11-26 11:58:22,759 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2023-11-26 11:58:22,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2023-11-26 11:58:22,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:22,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2023-11-26 11:58:22,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 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 11:58:22,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 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 11:58:22,765 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 91.0) internal successors, (637), 7 states have internal predecessors, (637), 0 states have call successors, (0), 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 11:58:22,765 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 328 flow. Second operand 6 states and 471 transitions. [2023-11-26 11:58:22,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 144 transitions, 618 flow [2023-11-26 11:58:22,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 144 transitions, 618 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:58:22,774 INFO L231 Difference]: Finished difference. Result has 110 places, 133 transitions, 582 flow [2023-11-26 11:58:22,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=582, PETRI_PLACES=110, PETRI_TRANSITIONS=133} [2023-11-26 11:58:22,775 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2023-11-26 11:58:22,776 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 133 transitions, 582 flow [2023-11-26 11:58:22,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 0 states have call successors, (0), 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 11:58:22,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:22,777 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] [2023-11-26 11:58:22,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:58:22,777 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:22,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1574519319, now seen corresponding path program 1 times [2023-11-26 11:58:22,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:22,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500922673] [2023-11-26 11:58:22,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:22,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:23,198 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 11:58:23,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:23,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500922673] [2023-11-26 11:58:23,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500922673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:23,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:23,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:58:23,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409466183] [2023-11-26 11:58:23,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:23,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:58:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:23,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:58:23,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:58:23,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 91 [2023-11-26 11:58:23,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 133 transitions, 582 flow. Second operand has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 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 11:58:23,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:23,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 91 [2023-11-26 11:58:23,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:23,556 INFO L124 PetriNetUnfolderBase]: 88/460 cut-off events. [2023-11-26 11:58:23,557 INFO L125 PetriNetUnfolderBase]: For 190/194 co-relation queries the response was YES. [2023-11-26 11:58:23,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 460 events. 88/460 cut-off events. For 190/194 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2342 event pairs, 7 based on Foata normal form. 2/461 useless extension candidates. Maximal degree in co-relation 866. Up to 83 conditions per place. [2023-11-26 11:58:23,561 INFO L140 encePairwiseOnDemand]: 83/91 looper letters, 11 selfloop transitions, 4 changer transitions 16/145 dead transitions. [2023-11-26 11:58:23,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 145 transitions, 662 flow [2023-11-26 11:58:23,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:58:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 11:58:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 561 transitions. [2023-11-26 11:58:23,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.880690737833595 [2023-11-26 11:58:23,565 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 561 transitions. [2023-11-26 11:58:23,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 561 transitions. [2023-11-26 11:58:23,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:23,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 561 transitions. [2023-11-26 11:58:23,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.14285714285714) internal successors, (561), 7 states have internal predecessors, (561), 0 states have call successors, (0), 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 11:58:23,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 0 states have call successors, (0), 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 11:58:23,570 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 91.0) internal successors, (728), 8 states have internal predecessors, (728), 0 states have call successors, (0), 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 11:58:23,570 INFO L175 Difference]: Start difference. First operand has 110 places, 133 transitions, 582 flow. Second operand 7 states and 561 transitions. [2023-11-26 11:58:23,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 145 transitions, 662 flow [2023-11-26 11:58:23,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 145 transitions, 644 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-26 11:58:23,582 INFO L231 Difference]: Finished difference. Result has 119 places, 128 transitions, 572 flow [2023-11-26 11:58:23,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=572, PETRI_PLACES=119, PETRI_TRANSITIONS=128} [2023-11-26 11:58:23,583 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 28 predicate places. [2023-11-26 11:58:23,583 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 128 transitions, 572 flow [2023-11-26 11:58:23,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 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 11:58:23,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:23,584 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] [2023-11-26 11:58:23,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:58:23,585 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:23,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:23,586 INFO L85 PathProgramCache]: Analyzing trace with hash 363248861, now seen corresponding path program 1 times [2023-11-26 11:58:23,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:23,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064940215] [2023-11-26 11:58:23,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:23,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:24,245 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 11:58:24,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:24,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064940215] [2023-11-26 11:58:24,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064940215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:24,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:24,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:58:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870260460] [2023-11-26 11:58:24,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:24,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:58:24,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:58:24,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:24,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-26 11:58:24,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 128 transitions, 572 flow. Second operand has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 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 11:58:24,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:24,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-26 11:58:24,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:25,419 INFO L124 PetriNetUnfolderBase]: 129/461 cut-off events. [2023-11-26 11:58:25,419 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2023-11-26 11:58:25,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 461 events. 129/461 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2193 event pairs, 22 based on Foata normal form. 11/468 useless extension candidates. Maximal degree in co-relation 1336. Up to 89 conditions per place. [2023-11-26 11:58:25,426 INFO L140 encePairwiseOnDemand]: 79/91 looper letters, 62 selfloop transitions, 32 changer transitions 23/177 dead transitions. [2023-11-26 11:58:25,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 177 transitions, 1114 flow [2023-11-26 11:58:25,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:58:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:58:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 778 transitions. [2023-11-26 11:58:25,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7772227772227772 [2023-11-26 11:58:25,430 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 778 transitions. [2023-11-26 11:58:25,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 778 transitions. [2023-11-26 11:58:25,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:25,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 778 transitions. [2023-11-26 11:58:25,435 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 11:58:25,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 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 11:58:25,438 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 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 11:58:25,438 INFO L175 Difference]: Start difference. First operand has 119 places, 128 transitions, 572 flow. Second operand 11 states and 778 transitions. [2023-11-26 11:58:25,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 177 transitions, 1114 flow [2023-11-26 11:58:25,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 177 transitions, 1063 flow, removed 21 selfloop flow, removed 5 redundant places. [2023-11-26 11:58:25,452 INFO L231 Difference]: Finished difference. Result has 123 places, 129 transitions, 668 flow [2023-11-26 11:58:25,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=668, PETRI_PLACES=123, PETRI_TRANSITIONS=129} [2023-11-26 11:58:25,454 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2023-11-26 11:58:25,455 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 129 transitions, 668 flow [2023-11-26 11:58:25,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 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 11:58:25,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:25,456 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] [2023-11-26 11:58:25,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:58:25,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:25,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:25,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2036725150, now seen corresponding path program 1 times [2023-11-26 11:58:25,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:25,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089313448] [2023-11-26 11:58:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:25,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:26,050 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 11:58:26,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089313448] [2023-11-26 11:58:26,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089313448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:26,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:26,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:58:26,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442720595] [2023-11-26 11:58:26,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:26,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:58:26,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:26,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:58:26,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:26,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-26 11:58:26,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 129 transitions, 668 flow. Second operand has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 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 11:58:26,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:26,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-26 11:58:26,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:27,220 INFO L124 PetriNetUnfolderBase]: 105/405 cut-off events. [2023-11-26 11:58:27,223 INFO L125 PetriNetUnfolderBase]: For 639/661 co-relation queries the response was YES. [2023-11-26 11:58:27,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 405 events. 105/405 cut-off events. For 639/661 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1827 event pairs, 20 based on Foata normal form. 16/419 useless extension candidates. Maximal degree in co-relation 1328. Up to 82 conditions per place. [2023-11-26 11:58:27,227 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 45 selfloop transitions, 28 changer transitions 33/159 dead transitions. [2023-11-26 11:58:27,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 159 transitions, 1140 flow [2023-11-26 11:58:27,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:58:27,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:58:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 702 transitions. [2023-11-26 11:58:27,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7714285714285715 [2023-11-26 11:58:27,231 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 702 transitions. [2023-11-26 11:58:27,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 702 transitions. [2023-11-26 11:58:27,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:27,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 702 transitions. [2023-11-26 11:58:27,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 70.2) internal successors, (702), 10 states have internal predecessors, (702), 0 states have call successors, (0), 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 11:58:27,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 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 11:58:27,244 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 91.0) internal successors, (1001), 11 states have internal predecessors, (1001), 0 states have call successors, (0), 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 11:58:27,244 INFO L175 Difference]: Start difference. First operand has 123 places, 129 transitions, 668 flow. Second operand 10 states and 702 transitions. [2023-11-26 11:58:27,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 159 transitions, 1140 flow [2023-11-26 11:58:27,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 159 transitions, 1090 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-11-26 11:58:27,260 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 555 flow [2023-11-26 11:58:27,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=555, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2023-11-26 11:58:27,263 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 32 predicate places. [2023-11-26 11:58:27,263 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 555 flow [2023-11-26 11:58:27,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 0 states have call successors, (0), 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 11:58:27,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:27,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:27,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:58:27,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:27,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:27,270 INFO L85 PathProgramCache]: Analyzing trace with hash -157945490, now seen corresponding path program 1 times [2023-11-26 11:58:27,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:27,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645188574] [2023-11-26 11:58:27,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:27,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:27,986 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 11:58:27,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:27,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645188574] [2023-11-26 11:58:27,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645188574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:27,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:27,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:58:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025475563] [2023-11-26 11:58:27,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:27,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:58:27,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:27,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:58:27,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:28,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-26 11:58:28,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 555 flow. Second operand has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 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 11:58:28,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:28,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-26 11:58:28,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:28,865 INFO L124 PetriNetUnfolderBase]: 49/228 cut-off events. [2023-11-26 11:58:28,865 INFO L125 PetriNetUnfolderBase]: For 423/432 co-relation queries the response was YES. [2023-11-26 11:58:28,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 228 events. 49/228 cut-off events. For 423/432 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 692 event pairs, 11 based on Foata normal form. 10/236 useless extension candidates. Maximal degree in co-relation 755. Up to 40 conditions per place. [2023-11-26 11:58:28,868 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 37 selfloop transitions, 17 changer transitions 21/131 dead transitions. [2023-11-26 11:58:28,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 131 transitions, 840 flow [2023-11-26 11:58:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:58:28,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:58:28,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 761 transitions. [2023-11-26 11:58:28,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602397602397603 [2023-11-26 11:58:28,871 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 761 transitions. [2023-11-26 11:58:28,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 761 transitions. [2023-11-26 11:58:28,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:28,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 761 transitions. [2023-11-26 11:58:28,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 69.18181818181819) internal successors, (761), 11 states have internal predecessors, (761), 0 states have call successors, (0), 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 11:58:28,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 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 11:58:28,879 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 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 11:58:28,880 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 555 flow. Second operand 11 states and 761 transitions. [2023-11-26 11:58:28,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 131 transitions, 840 flow [2023-11-26 11:58:28,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 131 transitions, 725 flow, removed 5 selfloop flow, removed 12 redundant places. [2023-11-26 11:58:28,888 INFO L231 Difference]: Finished difference. Result has 116 places, 100 transitions, 428 flow [2023-11-26 11:58:28,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=428, PETRI_PLACES=116, PETRI_TRANSITIONS=100} [2023-11-26 11:58:28,892 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 25 predicate places. [2023-11-26 11:58:28,892 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 100 transitions, 428 flow [2023-11-26 11:58:28,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 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 11:58:28,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:28,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:28,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:58:28,894 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:28,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1346165302, now seen corresponding path program 2 times [2023-11-26 11:58:28,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:28,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590220850] [2023-11-26 11:58:28,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:28,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:29,598 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 11:58:29,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:29,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590220850] [2023-11-26 11:58:29,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590220850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:29,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:29,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:58:29,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165359827] [2023-11-26 11:58:29,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:29,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:58:29,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:29,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:58:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:30,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-26 11:58:30,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 100 transitions, 428 flow. Second operand has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 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 11:58:30,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:30,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-26 11:58:30,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:30,586 INFO L124 PetriNetUnfolderBase]: 36/197 cut-off events. [2023-11-26 11:58:30,587 INFO L125 PetriNetUnfolderBase]: For 326/331 co-relation queries the response was YES. [2023-11-26 11:58:30,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 197 events. 36/197 cut-off events. For 326/331 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 528 event pairs, 11 based on Foata normal form. 6/201 useless extension candidates. Maximal degree in co-relation 593. Up to 36 conditions per place. [2023-11-26 11:58:30,589 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 25 selfloop transitions, 9 changer transitions 29/118 dead transitions. [2023-11-26 11:58:30,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 118 transitions, 649 flow [2023-11-26 11:58:30,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:58:30,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 11:58:30,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 824 transitions. [2023-11-26 11:58:30,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7545787545787546 [2023-11-26 11:58:30,593 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 824 transitions. [2023-11-26 11:58:30,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 824 transitions. [2023-11-26 11:58:30,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:30,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 824 transitions. [2023-11-26 11:58:30,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 68.66666666666667) internal successors, (824), 12 states have internal predecessors, (824), 0 states have call successors, (0), 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 11:58:30,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 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 11:58:30,600 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 91.0) internal successors, (1183), 13 states have internal predecessors, (1183), 0 states have call successors, (0), 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 11:58:30,601 INFO L175 Difference]: Start difference. First operand has 116 places, 100 transitions, 428 flow. Second operand 12 states and 824 transitions. [2023-11-26 11:58:30,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 118 transitions, 649 flow [2023-11-26 11:58:30,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 118 transitions, 606 flow, removed 5 selfloop flow, removed 10 redundant places. [2023-11-26 11:58:30,612 INFO L231 Difference]: Finished difference. Result has 117 places, 86 transitions, 304 flow [2023-11-26 11:58:30,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=304, PETRI_PLACES=117, PETRI_TRANSITIONS=86} [2023-11-26 11:58:30,613 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 26 predicate places. [2023-11-26 11:58:30,614 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 86 transitions, 304 flow [2023-11-26 11:58:30,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 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 11:58:30,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:58:30,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:58:30,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:58:30,620 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-26 11:58:30,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:58:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1845953226, now seen corresponding path program 3 times [2023-11-26 11:58:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:58:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296966508] [2023-11-26 11:58:30,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:58:30,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:58:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:58:31,192 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 11:58:31,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:58:31,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296966508] [2023-11-26 11:58:31,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296966508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:58:31,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:58:31,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 11:58:31,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583025233] [2023-11-26 11:58:31,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:58:31,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:58:31,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:58:31,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:58:31,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:58:31,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 91 [2023-11-26 11:58:31,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 86 transitions, 304 flow. Second operand has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 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 11:58:31,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:58:31,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 91 [2023-11-26 11:58:31,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:58:31,854 INFO L124 PetriNetUnfolderBase]: 16/138 cut-off events. [2023-11-26 11:58:31,855 INFO L125 PetriNetUnfolderBase]: For 142/143 co-relation queries the response was YES. [2023-11-26 11:58:31,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 138 events. 16/138 cut-off events. For 142/143 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 11 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 318. Up to 32 conditions per place. [2023-11-26 11:58:31,856 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2023-11-26 11:58:31,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 90 transitions, 393 flow [2023-11-26 11:58:31,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:58:31,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 11:58:31,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 743 transitions. [2023-11-26 11:58:31,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7422577422577422 [2023-11-26 11:58:31,860 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 743 transitions. [2023-11-26 11:58:31,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 743 transitions. [2023-11-26 11:58:31,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:58:31,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 743 transitions. [2023-11-26 11:58:31,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 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 11:58:31,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 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 11:58:31,867 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 91.0) internal successors, (1092), 12 states have internal predecessors, (1092), 0 states have call successors, (0), 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 11:58:31,867 INFO L175 Difference]: Start difference. First operand has 117 places, 86 transitions, 304 flow. Second operand 11 states and 743 transitions. [2023-11-26 11:58:31,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 90 transitions, 393 flow [2023-11-26 11:58:31,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 90 transitions, 348 flow, removed 7 selfloop flow, removed 14 redundant places. [2023-11-26 11:58:31,871 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2023-11-26 11:58:31,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2023-11-26 11:58:31,878 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 12 predicate places. [2023-11-26 11:58:31,878 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2023-11-26 11:58:31,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.0909090909091) internal successors, (738), 11 states have internal predecessors, (738), 0 states have call successors, (0), 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 11:58:31,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2023-11-26 11:58:31,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-26 11:58:31,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-26 11:58:31,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2023-11-26 11:58:31,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:58:31,883 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2023-11-26 11:58:31,888 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:58:31,889 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:58:31,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:58:31 BasicIcfg [2023-11-26 11:58:31,903 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:58:31,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:58:31,903 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:58:31,904 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:58:31,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:58:19" (3/4) ... [2023-11-26 11:58:31,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:58:31,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-26 11:58:31,918 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-26 11:58:31,918 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:58:31,919 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:58:32,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:58:32,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:58:32,036 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:58:32,037 INFO L158 Benchmark]: Toolchain (without parser) took 13806.04ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 136.6MB in the beginning and 123.6MB in the end (delta: 12.9MB). Peak memory consumption was 85.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:32,037 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:32,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.31ms. Allocated memory is still 165.7MB. Free memory was 136.6MB in the beginning and 108.3MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-26 11:58:32,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.80ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 105.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:32,039 INFO L158 Benchmark]: Boogie Preprocessor took 33.63ms. Allocated memory is still 165.7MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 963.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:58:32,039 INFO L158 Benchmark]: RCFGBuilder took 588.83ms. Allocated memory is still 165.7MB. Free memory was 104.0MB in the beginning and 87.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:58:32,040 INFO L158 Benchmark]: TraceAbstraction took 12213.93ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 86.2MB in the beginning and 128.9MB in the end (delta: -42.7MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2023-11-26 11:58:32,040 INFO L158 Benchmark]: Witness Printer took 133.21ms. Allocated memory is still 239.1MB. Free memory was 128.9MB in the beginning and 123.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:58:32,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.31ms. Allocated memory is still 165.7MB. Free memory was 136.6MB in the beginning and 108.3MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.80ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 105.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.63ms. Allocated memory is still 165.7MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 963.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 588.83ms. Allocated memory is still 165.7MB. Free memory was 104.0MB in the beginning and 87.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12213.93ms. Allocated memory was 165.7MB in the beginning and 239.1MB in the end (delta: 73.4MB). Free memory was 86.2MB in the beginning and 128.9MB in the end (delta: -42.7MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Witness Printer took 133.21ms. Allocated memory is still 239.1MB. Free memory was 128.9MB in the beginning and 123.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: 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, 108 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1907 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1554 mSDsluCounter, 1996 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1865 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5204 IncrementalHoareTripleChecker+Invalid, 5317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 131 mSDtfsCounter, 5204 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=668occurred in iteration=4, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 3060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:58:32,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ff21484-3905-4253-b889-c8a2eef7004a/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