./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu --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 ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:43:18,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:43:19,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:43:19,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:43:19,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:43:19,124 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:43:19,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:43:19,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:43:19,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:43:19,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:43:19,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:43:19,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:43:19,135 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:43:19,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:43:19,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:43:19,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:43:19,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:43:19,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:43:19,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:43:19,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:43:19,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:43:19,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:43:19,143 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:43:19,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:43:19,143 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:43:19,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:43:19,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:43:19,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:43:19,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:43:19,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:43:19,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:19,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:43:19,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:43:19,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:43:19,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:43:19,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:43:19,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:43:19,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:43:19,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:43:19,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:43:19,150 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:43:19,150 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_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 [2023-11-19 07:43:19,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:43:19,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:43:19,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:43:19,562 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:43:19,563 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:43:19,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2023-11-19 07:43:22,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:23,036 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:23,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2023-11-19 07:43:23,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/data/f73acf0d4/56dd6e89c3a14edd9a0ba47f48f4505d/FLAGb5d88f8d4 [2023-11-19 07:43:23,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/data/f73acf0d4/56dd6e89c3a14edd9a0ba47f48f4505d [2023-11-19 07:43:23,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:23,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:23,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:23,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:23,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:23,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8a467f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23, skipping insertion in model container [2023-11-19 07:43:23,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,161 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:23,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:23,630 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:23,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:23,725 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:23,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23 WrapperNode [2023-11-19 07:43:23,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:23,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:23,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:23,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:23,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,796 INFO L138 Inliner]: procedures = 170, calls = 35, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 183 [2023-11-19 07:43:23,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:23,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:23,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:23,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:23,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:23,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:23,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:23,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:23,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (1/1) ... [2023-11-19 07:43:23,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:23,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:23,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_668c34cf-6976-4aed-b0d5-3e380235aae1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:43:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:43:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:43:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:43:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:43:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:43:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:23,928 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:43:24,093 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:24,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:24,407 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:24,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:24,422 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-19 07:43:24,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:24 BoogieIcfgContainer [2023-11-19 07:43:24,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:24,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:24,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:24,443 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:24,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:23" (1/3) ... [2023-11-19 07:43:24,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec5837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:24, skipping insertion in model container [2023-11-19 07:43:24,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:23" (2/3) ... [2023-11-19 07:43:24,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec5837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:24, skipping insertion in model container [2023-11-19 07:43:24,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:24" (3/3) ... [2023-11-19 07:43:24,446 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2023-11-19 07:43:24,456 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:43:24,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:24,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-19 07:43:24,469 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:43:24,595 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:43:24,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 199 transitions, 405 flow [2023-11-19 07:43:24,771 INFO L124 PetriNetUnfolderBase]: 36/288 cut-off events. [2023-11-19 07:43:24,772 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:24,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 288 events. 36/288 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1272 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 167. Up to 6 conditions per place. [2023-11-19 07:43:24,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 199 transitions, 405 flow [2023-11-19 07:43:24,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 199 transitions, 405 flow [2023-11-19 07:43:24,804 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:24,822 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 199 transitions, 405 flow [2023-11-19 07:43:24,825 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 199 transitions, 405 flow [2023-11-19 07:43:24,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 199 transitions, 405 flow [2023-11-19 07:43:24,890 INFO L124 PetriNetUnfolderBase]: 36/288 cut-off events. [2023-11-19 07:43:24,891 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:24,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 288 events. 36/288 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1272 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 167. Up to 6 conditions per place. [2023-11-19 07:43:24,904 INFO L119 LiptonReduction]: Number of co-enabled transitions 13870 [2023-11-19 07:43:28,589 INFO L134 LiptonReduction]: Checked pairs total: 54774 [2023-11-19 07:43:28,590 INFO L136 LiptonReduction]: Total number of compositions: 149 [2023-11-19 07:43:28,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:28,614 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;@2e72c980, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:28,614 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-11-19 07:43:28,619 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:43:28,620 INFO L124 PetriNetUnfolderBase]: 1/18 cut-off events. [2023-11-19 07:43:28,620 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:28,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:28,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:43:28,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-19 07:43:28,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 706030958, now seen corresponding path program 1 times [2023-11-19 07:43:28,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:28,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005146724] [2023-11-19 07:43:28,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:28,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:28,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:28,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005146724] [2023-11-19 07:43:28,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005146724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:28,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:28,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:28,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82614349] [2023-11-19 07:43:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:28,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:28,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:28,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:29,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 348 [2023-11-19 07:43:29,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 94 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:29,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:29,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 348 [2023-11-19 07:43:29,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:29,252 INFO L124 PetriNetUnfolderBase]: 256/823 cut-off events. [2023-11-19 07:43:29,252 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:43:29,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1361 conditions, 823 events. 256/823 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4912 event pairs, 0 based on Foata normal form. 97/827 useless extension candidates. Maximal degree in co-relation 1326. Up to 515 conditions per place. [2023-11-19 07:43:29,263 INFO L140 encePairwiseOnDemand]: 326/348 looper letters, 48 selfloop transitions, 2 changer transitions 2/91 dead transitions. [2023-11-19 07:43:29,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 91 transitions, 293 flow [2023-11-19 07:43:29,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2023-11-19 07:43:29,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5574712643678161 [2023-11-19 07:43:29,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2023-11-19 07:43:29,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2023-11-19 07:43:29,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:29,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2023-11-19 07:43:29,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:29,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:29,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:29,312 INFO L175 Difference]: Start difference. First operand has 77 places, 94 transitions, 195 flow. Second operand 3 states and 582 transitions. [2023-11-19 07:43:29,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 91 transitions, 293 flow [2023-11-19 07:43:29,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 91 transitions, 293 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:43:29,321 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 158 flow [2023-11-19 07:43:29,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2023-11-19 07:43:29,327 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2023-11-19 07:43:29,327 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 158 flow [2023-11-19 07:43:29,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:29,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:29,328 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:43:29,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:43:29,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-19 07:43:29,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:29,329 INFO L85 PathProgramCache]: Analyzing trace with hash 406201607, now seen corresponding path program 1 times [2023-11-19 07:43:29,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:29,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935541923] [2023-11-19 07:43:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:29,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:29,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:43:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:29,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:43:29,394 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:43:29,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2023-11-19 07:43:29,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2023-11-19 07:43:29,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2023-11-19 07:43:29,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2023-11-19 07:43:29,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2023-11-19 07:43:29,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2023-11-19 07:43:29,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2023-11-19 07:43:29,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2023-11-19 07:43:29,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2023-11-19 07:43:29,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2023-11-19 07:43:29,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2023-11-19 07:43:29,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2023-11-19 07:43:29,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2023-11-19 07:43:29,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2023-11-19 07:43:29,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2023-11-19 07:43:29,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2023-11-19 07:43:29,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2023-11-19 07:43:29,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2023-11-19 07:43:29,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2023-11-19 07:43:29,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:43:29,402 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:43:29,405 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:43:29,405 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:43:29,459 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:43:29,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 274 transitions, 564 flow [2023-11-19 07:43:29,571 INFO L124 PetriNetUnfolderBase]: 62/484 cut-off events. [2023-11-19 07:43:29,571 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:43:29,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 484 events. 62/484 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2355 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 290. Up to 9 conditions per place. [2023-11-19 07:43:29,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 274 transitions, 564 flow [2023-11-19 07:43:29,582 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 274 transitions, 564 flow [2023-11-19 07:43:29,583 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:29,584 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 274 transitions, 564 flow [2023-11-19 07:43:29,586 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 274 transitions, 564 flow [2023-11-19 07:43:29,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 274 transitions, 564 flow [2023-11-19 07:43:29,668 INFO L124 PetriNetUnfolderBase]: 62/484 cut-off events. [2023-11-19 07:43:29,669 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:43:29,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 484 events. 62/484 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2355 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 290. Up to 9 conditions per place. [2023-11-19 07:43:29,705 INFO L119 LiptonReduction]: Number of co-enabled transitions 40004 [2023-11-19 07:43:33,464 INFO L134 LiptonReduction]: Checked pairs total: 170799 [2023-11-19 07:43:33,464 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-11-19 07:43:33,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:33,476 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;@2e72c980, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:33,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-19 07:43:33,480 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:43:33,480 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2023-11-19 07:43:33,480 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:33,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:33,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:43:33,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-19 07:43:33,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1217161202, now seen corresponding path program 1 times [2023-11-19 07:43:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723996492] [2023-11-19 07:43:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:33,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:33,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:33,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723996492] [2023-11-19 07:43:33,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723996492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:33,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:33,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:33,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259490265] [2023-11-19 07:43:33,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:33,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:33,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:33,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:33,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:33,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 455 [2023-11-19 07:43:33,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 147 transitions, 310 flow. Second operand has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:33,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:33,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 455 [2023-11-19 07:43:33,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:36,332 INFO L124 PetriNetUnfolderBase]: 8271/17351 cut-off events. [2023-11-19 07:43:36,333 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-19 07:43:36,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30126 conditions, 17351 events. 8271/17351 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 162773 event pairs, 3660 based on Foata normal form. 3408/18481 useless extension candidates. Maximal degree in co-relation 2449. Up to 12674 conditions per place. [2023-11-19 07:43:36,515 INFO L140 encePairwiseOnDemand]: 423/455 looper letters, 68 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2023-11-19 07:43:36,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 134 transitions, 424 flow [2023-11-19 07:43:36,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:36,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2023-11-19 07:43:36,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5838827838827839 [2023-11-19 07:43:36,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2023-11-19 07:43:36,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2023-11-19 07:43:36,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:36,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2023-11-19 07:43:36,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:36,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 455.0) internal successors, (1820), 4 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:36,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 455.0) internal successors, (1820), 4 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:36,533 INFO L175 Difference]: Start difference. First operand has 120 places, 147 transitions, 310 flow. Second operand 3 states and 797 transitions. [2023-11-19 07:43:36,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 134 transitions, 424 flow [2023-11-19 07:43:36,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 134 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:43:36,542 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 262 flow [2023-11-19 07:43:36,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=455, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2023-11-19 07:43:36,544 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, 1 predicate places. [2023-11-19 07:43:36,545 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 262 flow [2023-11-19 07:43:36,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:36,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:36,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:43:36,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:43:36,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-19 07:43:36,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:36,547 INFO L85 PathProgramCache]: Analyzing trace with hash -898801552, now seen corresponding path program 1 times [2023-11-19 07:43:36,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:36,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184866425] [2023-11-19 07:43:36,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:36,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:36,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:36,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184866425] [2023-11-19 07:43:36,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184866425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:36,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:36,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:36,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831657526] [2023-11-19 07:43:36,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:36,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:36,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:36,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:36,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 455 [2023-11-19 07:43:36,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:36,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:36,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 455 [2023-11-19 07:43:36,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:43:44,890 INFO L124 PetriNetUnfolderBase]: 44062/80097 cut-off events. [2023-11-19 07:43:44,890 INFO L125 PetriNetUnfolderBase]: For 1825/1825 co-relation queries the response was YES. [2023-11-19 07:43:45,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151377 conditions, 80097 events. 44062/80097 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 1644. Compared 757808 event pairs, 17755 based on Foata normal form. 0/72719 useless extension candidates. Maximal degree in co-relation 151209. Up to 42939 conditions per place. [2023-11-19 07:43:45,433 INFO L140 encePairwiseOnDemand]: 416/455 looper letters, 127 selfloop transitions, 28 changer transitions 0/189 dead transitions. [2023-11-19 07:43:45,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 189 transitions, 732 flow [2023-11-19 07:43:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:43:45,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 752 transitions. [2023-11-19 07:43:45,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.550915750915751 [2023-11-19 07:43:45,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 752 transitions. [2023-11-19 07:43:45,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 752 transitions. [2023-11-19 07:43:45,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:43:45,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 752 transitions. [2023-11-19 07:43:45,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:45,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 455.0) internal successors, (1820), 4 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:45,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 455.0) internal successors, (1820), 4 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:45,451 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 262 flow. Second operand 3 states and 752 transitions. [2023-11-19 07:43:45,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 189 transitions, 732 flow [2023-11-19 07:43:45,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 189 transitions, 729 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:43:45,469 INFO L231 Difference]: Finished difference. Result has 124 places, 146 transitions, 506 flow [2023-11-19 07:43:45,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=455, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=124, PETRI_TRANSITIONS=146} [2023-11-19 07:43:45,473 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2023-11-19 07:43:45,473 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 146 transitions, 506 flow [2023-11-19 07:43:45,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:45,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:45,475 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:43:45,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:43:45,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-19 07:43:45,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 284042141, now seen corresponding path program 1 times [2023-11-19 07:43:45,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:45,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009932076] [2023-11-19 07:43:45,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:45,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:45,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:43:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:43:45,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:43:45,568 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:43:45,568 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-19 07:43:45,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-19 07:43:45,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-19 07:43:45,569 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-19 07:43:45,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-19 07:43:45,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-19 07:43:45,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-19 07:43:45,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-19 07:43:45,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-19 07:43:45,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-19 07:43:45,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-19 07:43:45,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-19 07:43:45,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-19 07:43:45,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-19 07:43:45,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-19 07:43:45,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-19 07:43:45,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-19 07:43:45,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-19 07:43:45,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-19 07:43:45,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-19 07:43:45,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-19 07:43:45,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-19 07:43:45,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-19 07:43:45,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-19 07:43:45,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-19 07:43:45,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:43:45,582 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:43:45,583 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:43:45,583 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:43:45,641 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:43:45,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 349 transitions, 725 flow [2023-11-19 07:43:45,886 INFO L124 PetriNetUnfolderBase]: 93/727 cut-off events. [2023-11-19 07:43:45,886 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:43:45,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 727 events. 93/727 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3703 event pairs, 1 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 492. Up to 16 conditions per place. [2023-11-19 07:43:45,897 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 349 transitions, 725 flow [2023-11-19 07:43:45,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 349 transitions, 725 flow [2023-11-19 07:43:45,911 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:43:45,911 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 308 places, 349 transitions, 725 flow [2023-11-19 07:43:45,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 308 places, 349 transitions, 725 flow [2023-11-19 07:43:45,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 349 transitions, 725 flow [2023-11-19 07:43:46,067 INFO L124 PetriNetUnfolderBase]: 93/727 cut-off events. [2023-11-19 07:43:46,067 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:43:46,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 727 events. 93/727 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3703 event pairs, 1 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 492. Up to 16 conditions per place. [2023-11-19 07:43:46,239 INFO L119 LiptonReduction]: Number of co-enabled transitions 76650 [2023-11-19 07:43:50,281 INFO L134 LiptonReduction]: Checked pairs total: 344345 [2023-11-19 07:43:50,281 INFO L136 LiptonReduction]: Total number of compositions: 225 [2023-11-19 07:43:50,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:50,291 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;@2e72c980, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:50,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-19 07:43:50,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:43:50,300 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-11-19 07:43:50,300 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:43:50,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:43:50,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:43:50,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-19 07:43:50,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:50,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1835228134, now seen corresponding path program 1 times [2023-11-19 07:43:50,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:43:50,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078317793] [2023-11-19 07:43:50,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:50,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:43:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:43:50,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:43:50,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078317793] [2023-11-19 07:43:50,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078317793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:50,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:50,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323502673] [2023-11-19 07:43:50,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:50,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:43:50,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:50,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:50,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 574 [2023-11-19 07:43:50,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 194 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:50,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:43:50,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 574 [2023-11-19 07:43:50,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand