./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:28:49,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:49,958 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:28:49,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:49,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:50,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:50,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:50,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:50,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:50,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:50,031 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:50,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:50,032 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:50,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:50,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:28:50,036 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:28:50,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:28:50,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:28:50,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:50,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:28:50,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:50,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:28:50,039 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:28:50,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:28:50,040 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:28:50,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:28:50,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:50,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:50,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:50,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:50,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:50,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:50,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:50,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:28:50,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:28:50,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:28:50,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:50,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:50,047 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:28:50,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:50,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:50,048 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_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 [2023-11-21 22:28:50,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:50,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:50,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:50,481 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:50,481 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:50,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-21 22:28:53,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:54,191 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:54,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2023-11-21 22:28:54,220 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/data/45ee0b6ab/121eca4c93a44a22b8da614c6897c473/FLAGdb1e38b0d [2023-11-21 22:28:54,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/data/45ee0b6ab/121eca4c93a44a22b8da614c6897c473 [2023-11-21 22:28:54,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:54,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:54,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:54,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:54,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:54,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b031ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54, skipping insertion in model container [2023-11-21 22:28:54,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,341 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:54,566 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:28:55,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:55,351 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:55,368 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:28:55,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:55,716 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:55,717 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:55,717 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:55,733 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:55,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55 WrapperNode [2023-11-21 22:28:55,737 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:55,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:55,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:55,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:55,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,865 INFO L138 Inliner]: procedures = 468, calls = 49, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 186 [2023-11-21 22:28:55,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:55,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:55,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:55,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:55,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:55,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:55,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:55,931 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:55,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (1/1) ... [2023-11-21 22:28:55,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:55,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:56,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:56,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9586b122-4adc-4e5c-895e-6fb57ba3461d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:56,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:28:56,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:28:56,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:56,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-21 22:28:56,050 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-21 22:28:56,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:28:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:28:56,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:28:56,052 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:28:56,377 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:56,379 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:56,820 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:28:56,896 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:28:56,896 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:28:56,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:56 BoogieIcfgContainer [2023-11-21 22:28:56,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:28:56,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:28:56,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:28:56,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:28:56,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:28:54" (1/3) ... [2023-11-21 22:28:56,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4767317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:56, skipping insertion in model container [2023-11-21 22:28:56,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:55" (2/3) ... [2023-11-21 22:28:56,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4767317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:56, skipping insertion in model container [2023-11-21 22:28:56,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:56" (3/3) ... [2023-11-21 22:28:56,934 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-11-21 22:28:56,946 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:28:56,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:28:56,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-21 22:28:56,979 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:28:57,104 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:28:57,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 255 transitions, 524 flow [2023-11-21 22:28:57,308 INFO L124 PetriNetUnfolderBase]: 14/343 cut-off events. [2023-11-21 22:28:57,308 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:28:57,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 343 events. 14/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 720 event pairs, 0 based on Foata normal form. 0/306 useless extension candidates. Maximal degree in co-relation 172. Up to 4 conditions per place. [2023-11-21 22:28:57,315 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 255 transitions, 524 flow [2023-11-21 22:28:57,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 252 transitions, 516 flow [2023-11-21 22:28:57,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:28:57,346 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;@586dcd8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:28:57,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-21 22:28:57,357 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:28:57,357 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2023-11-21 22:28:57,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:28:57,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:28:57,359 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] [2023-11-21 22:28:57,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:28:57,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1215930334, now seen corresponding path program 1 times [2023-11-21 22:28:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:57,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871168865] [2023-11-21 22:28:57,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:57,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:58,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:58,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:58,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871168865] [2023-11-21 22:28:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871168865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:58,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:58,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:28:58,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983067604] [2023-11-21 22:28:58,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:58,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:28:58,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:58,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:28:58,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:28:59,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 255 [2023-11-21 22:28:59,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 252 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 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) [2023-11-21 22:28:59,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:28:59,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 255 [2023-11-21 22:28:59,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:00,044 INFO L124 PetriNetUnfolderBase]: 532/1952 cut-off events. [2023-11-21 22:29:00,045 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-21 22:29:00,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2917 conditions, 1952 events. 532/1952 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13656 event pairs, 531 based on Foata normal form. 72/1863 useless extension candidates. Maximal degree in co-relation 2597. Up to 942 conditions per place. [2023-11-21 22:29:00,069 INFO L140 encePairwiseOnDemand]: 235/255 looper letters, 47 selfloop transitions, 5 changer transitions 6/225 dead transitions. [2023-11-21 22:29:00,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 566 flow [2023-11-21 22:29:00,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1171 transitions. [2023-11-21 22:29:00,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.765359477124183 [2023-11-21 22:29:00,095 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1171 transitions. [2023-11-21 22:29:00,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1171 transitions. [2023-11-21 22:29:00,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:00,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1171 transitions. [2023-11-21 22:29:00,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 195.16666666666666) internal successors, (1171), 6 states have internal predecessors, (1171), 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) [2023-11-21 22:29:00,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:00,129 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:00,131 INFO L175 Difference]: Start difference. First operand has 249 places, 252 transitions, 516 flow. Second operand 6 states and 1171 transitions. [2023-11-21 22:29:00,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 566 flow [2023-11-21 22:29:00,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 558 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:29:00,150 INFO L231 Difference]: Finished difference. Result has 231 places, 219 transitions, 452 flow [2023-11-21 22:29:00,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=231, PETRI_TRANSITIONS=219} [2023-11-21 22:29:00,160 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -18 predicate places. [2023-11-21 22:29:00,161 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 219 transitions, 452 flow [2023-11-21 22:29:00,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 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) [2023-11-21 22:29:00,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:00,163 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] [2023-11-21 22:29:00,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:29:00,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:00,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash -968147967, now seen corresponding path program 1 times [2023-11-21 22:29:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:00,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820048017] [2023-11-21 22:29:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:00,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:00,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:00,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:00,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820048017] [2023-11-21 22:29:00,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820048017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:00,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:00,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:00,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374793353] [2023-11-21 22:29:00,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:00,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:00,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:00,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:00,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:01,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 255 [2023-11-21 22:29:01,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 219 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 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) [2023-11-21 22:29:01,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:01,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 255 [2023-11-21 22:29:01,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:01,863 INFO L124 PetriNetUnfolderBase]: 532/1945 cut-off events. [2023-11-21 22:29:01,864 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:29:01,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 1945 events. 532/1945 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13569 event pairs, 531 based on Foata normal form. 0/1787 useless extension candidates. Maximal degree in co-relation 2857. Up to 942 conditions per place. [2023-11-21 22:29:01,881 INFO L140 encePairwiseOnDemand]: 249/255 looper letters, 47 selfloop transitions, 5 changer transitions 0/218 dead transitions. [2023-11-21 22:29:01,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 218 transitions, 554 flow [2023-11-21 22:29:01,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:01,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1157 transitions. [2023-11-21 22:29:01,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7562091503267974 [2023-11-21 22:29:01,888 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1157 transitions. [2023-11-21 22:29:01,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1157 transitions. [2023-11-21 22:29:01,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:01,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1157 transitions. [2023-11-21 22:29:01,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.83333333333334) internal successors, (1157), 6 states have internal predecessors, (1157), 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) [2023-11-21 22:29:01,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:01,904 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:01,905 INFO L175 Difference]: Start difference. First operand has 231 places, 219 transitions, 452 flow. Second operand 6 states and 1157 transitions. [2023-11-21 22:29:01,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 218 transitions, 554 flow [2023-11-21 22:29:01,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 218 transitions, 544 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:29:01,920 INFO L231 Difference]: Finished difference. Result has 224 places, 218 transitions, 450 flow [2023-11-21 22:29:01,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=224, PETRI_TRANSITIONS=218} [2023-11-21 22:29:01,923 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -25 predicate places. [2023-11-21 22:29:01,927 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 218 transitions, 450 flow [2023-11-21 22:29:01,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 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) [2023-11-21 22:29:01,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:01,930 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] [2023-11-21 22:29:01,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:29:01,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:01,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1015054059, now seen corresponding path program 1 times [2023-11-21 22:29:01,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:01,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302485091] [2023-11-21 22:29:01,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:01,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302485091] [2023-11-21 22:29:02,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302485091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:02,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:02,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:02,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816583322] [2023-11-21 22:29:02,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:02,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:02,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:02,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:02,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:03,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 255 [2023-11-21 22:29:03,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 218 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:29:03,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:03,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 255 [2023-11-21 22:29:03,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:04,053 INFO L124 PetriNetUnfolderBase]: 616/1982 cut-off events. [2023-11-21 22:29:04,054 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:29:04,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 1982 events. 616/1982 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 12988 event pairs, 417 based on Foata normal form. 0/1865 useless extension candidates. Maximal degree in co-relation 3016. Up to 985 conditions per place. [2023-11-21 22:29:04,071 INFO L140 encePairwiseOnDemand]: 242/255 looper letters, 45 selfloop transitions, 30 changer transitions 6/247 dead transitions. [2023-11-21 22:29:04,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 247 transitions, 664 flow [2023-11-21 22:29:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1207 transitions. [2023-11-21 22:29:04,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2023-11-21 22:29:04,077 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1207 transitions. [2023-11-21 22:29:04,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1207 transitions. [2023-11-21 22:29:04,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:04,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1207 transitions. [2023-11-21 22:29:04,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 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) [2023-11-21 22:29:04,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:04,092 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:04,092 INFO L175 Difference]: Start difference. First operand has 224 places, 218 transitions, 450 flow. Second operand 6 states and 1207 transitions. [2023-11-21 22:29:04,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 247 transitions, 664 flow [2023-11-21 22:29:04,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 247 transitions, 654 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:29:04,101 INFO L231 Difference]: Finished difference. Result has 229 places, 241 transitions, 630 flow [2023-11-21 22:29:04,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=229, PETRI_TRANSITIONS=241} [2023-11-21 22:29:04,104 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -20 predicate places. [2023-11-21 22:29:04,105 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 241 transitions, 630 flow [2023-11-21 22:29:04,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:29:04,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:04,106 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] [2023-11-21 22:29:04,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:29:04,107 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:04,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:04,108 INFO L85 PathProgramCache]: Analyzing trace with hash -335999721, now seen corresponding path program 1 times [2023-11-21 22:29:04,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:04,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901221862] [2023-11-21 22:29:04,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:04,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:04,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:04,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901221862] [2023-11-21 22:29:04,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901221862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:04,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:04,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:04,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224112517] [2023-11-21 22:29:04,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:04,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:29:04,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:04,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:29:04,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:29:04,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 255 [2023-11-21 22:29:04,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 241 transitions, 630 flow. Second operand has 5 states, 5 states have (on average 217.6) internal successors, (1088), 5 states have internal predecessors, (1088), 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) [2023-11-21 22:29:04,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:04,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 255 [2023-11-21 22:29:04,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:04,791 INFO L124 PetriNetUnfolderBase]: 389/1556 cut-off events. [2023-11-21 22:29:04,792 INFO L125 PetriNetUnfolderBase]: For 414/476 co-relation queries the response was YES. [2023-11-21 22:29:04,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2896 conditions, 1556 events. 389/1556 cut-off events. For 414/476 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9445 event pairs, 204 based on Foata normal form. 1/1461 useless extension candidates. Maximal degree in co-relation 1776. Up to 498 conditions per place. [2023-11-21 22:29:04,809 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 42 selfloop transitions, 4 changer transitions 0/244 dead transitions. [2023-11-21 22:29:04,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 244 transitions, 728 flow [2023-11-21 22:29:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:04,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1319 transitions. [2023-11-21 22:29:04,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8620915032679739 [2023-11-21 22:29:04,816 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1319 transitions. [2023-11-21 22:29:04,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1319 transitions. [2023-11-21 22:29:04,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:04,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1319 transitions. [2023-11-21 22:29:04,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 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) [2023-11-21 22:29:04,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:04,830 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:04,830 INFO L175 Difference]: Start difference. First operand has 229 places, 241 transitions, 630 flow. Second operand 6 states and 1319 transitions. [2023-11-21 22:29:04,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 244 transitions, 728 flow [2023-11-21 22:29:04,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 244 transitions, 728 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:29:04,846 INFO L231 Difference]: Finished difference. Result has 232 places, 244 transitions, 659 flow [2023-11-21 22:29:04,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=659, PETRI_PLACES=232, PETRI_TRANSITIONS=244} [2023-11-21 22:29:04,849 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -17 predicate places. [2023-11-21 22:29:04,849 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 244 transitions, 659 flow [2023-11-21 22:29:04,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 217.6) internal successors, (1088), 5 states have internal predecessors, (1088), 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) [2023-11-21 22:29:04,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:04,851 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] [2023-11-21 22:29:04,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:29:04,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:04,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:04,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1290783364, now seen corresponding path program 1 times [2023-11-21 22:29:04,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:04,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093838104] [2023-11-21 22:29:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:04,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:05,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:05,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093838104] [2023-11-21 22:29:05,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093838104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:05,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:05,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:05,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345703738] [2023-11-21 22:29:05,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:05,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:05,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:05,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:05,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:06,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 255 [2023-11-21 22:29:06,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 244 transitions, 659 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:29:06,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:06,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 255 [2023-11-21 22:29:06,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:07,014 INFO L124 PetriNetUnfolderBase]: 781/2268 cut-off events. [2023-11-21 22:29:07,014 INFO L125 PetriNetUnfolderBase]: For 727/735 co-relation queries the response was YES. [2023-11-21 22:29:07,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 2268 events. 781/2268 cut-off events. For 727/735 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 14777 event pairs, 414 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 4635. Up to 1119 conditions per place. [2023-11-21 22:29:07,045 INFO L140 encePairwiseOnDemand]: 242/255 looper letters, 68 selfloop transitions, 30 changer transitions 12/273 dead transitions. [2023-11-21 22:29:07,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 273 transitions, 963 flow [2023-11-21 22:29:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1204 transitions. [2023-11-21 22:29:07,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7869281045751634 [2023-11-21 22:29:07,052 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1204 transitions. [2023-11-21 22:29:07,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1204 transitions. [2023-11-21 22:29:07,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:07,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1204 transitions. [2023-11-21 22:29:07,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 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) [2023-11-21 22:29:07,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:07,067 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:07,067 INFO L175 Difference]: Start difference. First operand has 232 places, 244 transitions, 659 flow. Second operand 6 states and 1204 transitions. [2023-11-21 22:29:07,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 273 transitions, 963 flow [2023-11-21 22:29:07,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 273 transitions, 962 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:29:07,081 INFO L231 Difference]: Finished difference. Result has 241 places, 261 transitions, 884 flow [2023-11-21 22:29:07,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=241, PETRI_TRANSITIONS=261} [2023-11-21 22:29:07,085 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -8 predicate places. [2023-11-21 22:29:07,085 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 261 transitions, 884 flow [2023-11-21 22:29:07,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:29:07,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:07,087 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, 1, 1, 1, 1, 1] [2023-11-21 22:29:07,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:29:07,087 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:07,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:07,089 INFO L85 PathProgramCache]: Analyzing trace with hash -985570929, now seen corresponding path program 1 times [2023-11-21 22:29:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:07,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424732764] [2023-11-21 22:29:07,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:07,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:07,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:07,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424732764] [2023-11-21 22:29:07,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424732764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:07,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:07,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:07,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954679735] [2023-11-21 22:29:07,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:07,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:07,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:07,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:07,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:08,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 255 [2023-11-21 22:29:08,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 261 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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) [2023-11-21 22:29:08,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:08,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 255 [2023-11-21 22:29:08,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:09,047 INFO L124 PetriNetUnfolderBase]: 758/1931 cut-off events. [2023-11-21 22:29:09,047 INFO L125 PetriNetUnfolderBase]: For 1317/1483 co-relation queries the response was YES. [2023-11-21 22:29:09,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5476 conditions, 1931 events. 758/1931 cut-off events. For 1317/1483 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11688 event pairs, 222 based on Foata normal form. 1/1865 useless extension candidates. Maximal degree in co-relation 4563. Up to 1067 conditions per place. [2023-11-21 22:29:09,073 INFO L140 encePairwiseOnDemand]: 244/255 looper letters, 96 selfloop transitions, 22 changer transitions 0/292 dead transitions. [2023-11-21 22:29:09,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 292 transitions, 1284 flow [2023-11-21 22:29:09,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:09,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:09,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1289 transitions. [2023-11-21 22:29:09,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.842483660130719 [2023-11-21 22:29:09,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1289 transitions. [2023-11-21 22:29:09,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1289 transitions. [2023-11-21 22:29:09,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:09,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1289 transitions. [2023-11-21 22:29:09,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.83333333333334) internal successors, (1289), 6 states have internal predecessors, (1289), 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) [2023-11-21 22:29:09,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:09,091 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:09,091 INFO L175 Difference]: Start difference. First operand has 241 places, 261 transitions, 884 flow. Second operand 6 states and 1289 transitions. [2023-11-21 22:29:09,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 292 transitions, 1284 flow [2023-11-21 22:29:09,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 292 transitions, 1236 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-11-21 22:29:09,115 INFO L231 Difference]: Finished difference. Result has 239 places, 282 transitions, 1054 flow [2023-11-21 22:29:09,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1054, PETRI_PLACES=239, PETRI_TRANSITIONS=282} [2023-11-21 22:29:09,119 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -10 predicate places. [2023-11-21 22:29:09,119 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 282 transitions, 1054 flow [2023-11-21 22:29:09,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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) [2023-11-21 22:29:09,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:09,121 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:09,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:29:09,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:09,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash -289495128, now seen corresponding path program 1 times [2023-11-21 22:29:09,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:09,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078065302] [2023-11-21 22:29:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:09,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078065302] [2023-11-21 22:29:09,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078065302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:09,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:09,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:09,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493452335] [2023-11-21 22:29:09,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:09,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:09,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:09,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:09,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:10,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 255 [2023-11-21 22:29:10,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 282 transitions, 1054 flow. Second operand has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 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) [2023-11-21 22:29:10,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:10,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 255 [2023-11-21 22:29:10,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:10,948 INFO L124 PetriNetUnfolderBase]: 877/2450 cut-off events. [2023-11-21 22:29:10,948 INFO L125 PetriNetUnfolderBase]: For 2531/2982 co-relation queries the response was YES. [2023-11-21 22:29:10,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7015 conditions, 2450 events. 877/2450 cut-off events. For 2531/2982 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 16383 event pairs, 242 based on Foata normal form. 0/2356 useless extension candidates. Maximal degree in co-relation 6066. Up to 1142 conditions per place. [2023-11-21 22:29:10,991 INFO L140 encePairwiseOnDemand]: 239/255 looper letters, 107 selfloop transitions, 27 changer transitions 0/310 dead transitions. [2023-11-21 22:29:10,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 310 transitions, 1512 flow [2023-11-21 22:29:10,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:10,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1249 transitions. [2023-11-21 22:29:10,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8163398692810457 [2023-11-21 22:29:10,997 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1249 transitions. [2023-11-21 22:29:10,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1249 transitions. [2023-11-21 22:29:10,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:10,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1249 transitions. [2023-11-21 22:29:11,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.16666666666666) internal successors, (1249), 6 states have internal predecessors, (1249), 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) [2023-11-21 22:29:11,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:11,065 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:11,065 INFO L175 Difference]: Start difference. First operand has 239 places, 282 transitions, 1054 flow. Second operand 6 states and 1249 transitions. [2023-11-21 22:29:11,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 310 transitions, 1512 flow [2023-11-21 22:29:11,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 310 transitions, 1512 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:29:11,087 INFO L231 Difference]: Finished difference. Result has 248 places, 302 transitions, 1324 flow [2023-11-21 22:29:11,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1324, PETRI_PLACES=248, PETRI_TRANSITIONS=302} [2023-11-21 22:29:11,089 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -1 predicate places. [2023-11-21 22:29:11,089 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 302 transitions, 1324 flow [2023-11-21 22:29:11,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 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) [2023-11-21 22:29:11,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:11,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:11,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:29:11,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:11,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:11,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1018293945, now seen corresponding path program 1 times [2023-11-21 22:29:11,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:11,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428814776] [2023-11-21 22:29:11,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:11,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:11,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:11,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:11,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428814776] [2023-11-21 22:29:11,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428814776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:11,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:11,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:11,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270539880] [2023-11-21 22:29:11,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:11,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:29:11,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:11,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:29:11,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:29:11,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 255 [2023-11-21 22:29:11,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 302 transitions, 1324 flow. Second operand has 5 states, 5 states have (on average 217.2) internal successors, (1086), 5 states have internal predecessors, (1086), 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) [2023-11-21 22:29:11,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:11,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 255 [2023-11-21 22:29:11,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:11,769 INFO L124 PetriNetUnfolderBase]: 261/1035 cut-off events. [2023-11-21 22:29:11,770 INFO L125 PetriNetUnfolderBase]: For 1714/1774 co-relation queries the response was YES. [2023-11-21 22:29:11,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2881 conditions, 1035 events. 261/1035 cut-off events. For 1714/1774 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5551 event pairs, 15 based on Foata normal form. 16/1030 useless extension candidates. Maximal degree in co-relation 2777. Up to 299 conditions per place. [2023-11-21 22:29:11,784 INFO L140 encePairwiseOnDemand]: 250/255 looper letters, 59 selfloop transitions, 4 changer transitions 3/245 dead transitions. [2023-11-21 22:29:11,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 245 transitions, 1104 flow [2023-11-21 22:29:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:29:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1338 transitions. [2023-11-21 22:29:11,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8745098039215686 [2023-11-21 22:29:11,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1338 transitions. [2023-11-21 22:29:11,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1338 transitions. [2023-11-21 22:29:11,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:11,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1338 transitions. [2023-11-21 22:29:11,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 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) [2023-11-21 22:29:11,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:11,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 255.0) internal successors, (1785), 7 states have internal predecessors, (1785), 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) [2023-11-21 22:29:11,808 INFO L175 Difference]: Start difference. First operand has 248 places, 302 transitions, 1324 flow. Second operand 6 states and 1338 transitions. [2023-11-21 22:29:11,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 245 transitions, 1104 flow [2023-11-21 22:29:11,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 245 transitions, 1032 flow, removed 3 selfloop flow, removed 24 redundant places. [2023-11-21 22:29:11,822 INFO L231 Difference]: Finished difference. Result has 227 places, 218 transitions, 703 flow [2023-11-21 22:29:11,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=703, PETRI_PLACES=227, PETRI_TRANSITIONS=218} [2023-11-21 22:29:11,826 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, -22 predicate places. [2023-11-21 22:29:11,826 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 218 transitions, 703 flow [2023-11-21 22:29:11,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 217.2) internal successors, (1086), 5 states have internal predecessors, (1086), 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) [2023-11-21 22:29:11,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:11,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:11,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:29:11,828 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:11,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2121819671, now seen corresponding path program 1 times [2023-11-21 22:29:11,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:11,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365440149] [2023-11-21 22:29:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:11,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:13,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:13,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:13,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365440149] [2023-11-21 22:29:13,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365440149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:13,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:13,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-21 22:29:13,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116843579] [2023-11-21 22:29:13,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:13,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 22:29:13,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:13,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 22:29:13,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:29:19,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-21 22:29:19,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 218 transitions, 703 flow. Second operand has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 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) [2023-11-21 22:29:19,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:19,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-21 22:29:19,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:23,427 INFO L124 PetriNetUnfolderBase]: 1276/3013 cut-off events. [2023-11-21 22:29:23,427 INFO L125 PetriNetUnfolderBase]: For 4375/4380 co-relation queries the response was YES. [2023-11-21 22:29:23,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9170 conditions, 3013 events. 1276/3013 cut-off events. For 4375/4380 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 17691 event pairs, 97 based on Foata normal form. 13/2987 useless extension candidates. Maximal degree in co-relation 8929. Up to 946 conditions per place. [2023-11-21 22:29:23,466 INFO L140 encePairwiseOnDemand]: 228/255 looper letters, 186 selfloop transitions, 151 changer transitions 0/482 dead transitions. [2023-11-21 22:29:23,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 482 transitions, 2860 flow [2023-11-21 22:29:23,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-21 22:29:23,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-11-21 22:29:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 8696 transitions. [2023-11-21 22:29:23,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7413469735720375 [2023-11-21 22:29:23,495 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 8696 transitions. [2023-11-21 22:29:23,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 8696 transitions. [2023-11-21 22:29:23,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:23,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 8696 transitions. [2023-11-21 22:29:23,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 189.04347826086956) internal successors, (8696), 46 states have internal predecessors, (8696), 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) [2023-11-21 22:29:23,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 255.0) internal successors, (11985), 47 states have internal predecessors, (11985), 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) [2023-11-21 22:29:23,576 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 255.0) internal successors, (11985), 47 states have internal predecessors, (11985), 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) [2023-11-21 22:29:23,576 INFO L175 Difference]: Start difference. First operand has 227 places, 218 transitions, 703 flow. Second operand 46 states and 8696 transitions. [2023-11-21 22:29:23,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 482 transitions, 2860 flow [2023-11-21 22:29:23,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 482 transitions, 2833 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-11-21 22:29:23,614 INFO L231 Difference]: Finished difference. Result has 295 places, 350 transitions, 2286 flow [2023-11-21 22:29:23,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=2286, PETRI_PLACES=295, PETRI_TRANSITIONS=350} [2023-11-21 22:29:23,616 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 46 predicate places. [2023-11-21 22:29:23,616 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 350 transitions, 2286 flow [2023-11-21 22:29:23,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 183.75) internal successors, (3675), 20 states have internal predecessors, (3675), 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) [2023-11-21 22:29:23,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:23,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:23,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:29:23,618 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:23,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2043608925, now seen corresponding path program 2 times [2023-11-21 22:29:23,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:23,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461279120] [2023-11-21 22:29:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:23,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:24,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:24,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461279120] [2023-11-21 22:29:24,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461279120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:24,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:24,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-11-21 22:29:24,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446326273] [2023-11-21 22:29:24,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:24,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-21 22:29:24,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:24,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-21 22:29:24,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:29:29,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 255 [2023-11-21 22:29:29,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 350 transitions, 2286 flow. Second operand has 19 states, 19 states have (on average 183.78947368421052) internal successors, (3492), 19 states have internal predecessors, (3492), 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) [2023-11-21 22:29:29,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:29:29,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 255 [2023-11-21 22:29:29,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:29:33,481 INFO L124 PetriNetUnfolderBase]: 1405/3558 cut-off events. [2023-11-21 22:29:33,482 INFO L125 PetriNetUnfolderBase]: For 12431/12681 co-relation queries the response was YES. [2023-11-21 22:29:33,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14059 conditions, 3558 events. 1405/3558 cut-off events. For 12431/12681 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 22616 event pairs, 78 based on Foata normal form. 47/3577 useless extension candidates. Maximal degree in co-relation 13631. Up to 997 conditions per place. [2023-11-21 22:29:33,530 INFO L140 encePairwiseOnDemand]: 230/255 looper letters, 389 selfloop transitions, 174 changer transitions 0/708 dead transitions. [2023-11-21 22:29:33,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 708 transitions, 6851 flow [2023-11-21 22:29:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-21 22:29:33,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-21 22:29:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9036 transitions. [2023-11-21 22:29:33,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7382352941176471 [2023-11-21 22:29:33,552 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9036 transitions. [2023-11-21 22:29:33,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9036 transitions. [2023-11-21 22:29:33,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:29:33,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9036 transitions. [2023-11-21 22:29:33,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 188.25) internal successors, (9036), 48 states have internal predecessors, (9036), 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) [2023-11-21 22:29:33,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 255.0) internal successors, (12495), 49 states have internal predecessors, (12495), 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) [2023-11-21 22:29:33,695 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 255.0) internal successors, (12495), 49 states have internal predecessors, (12495), 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) [2023-11-21 22:29:33,696 INFO L175 Difference]: Start difference. First operand has 295 places, 350 transitions, 2286 flow. Second operand 48 states and 9036 transitions. [2023-11-21 22:29:33,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 708 transitions, 6851 flow [2023-11-21 22:29:33,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 708 transitions, 6841 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:29:33,789 INFO L231 Difference]: Finished difference. Result has 353 places, 473 transitions, 4183 flow [2023-11-21 22:29:33,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=4183, PETRI_PLACES=353, PETRI_TRANSITIONS=473} [2023-11-21 22:29:33,791 INFO L281 CegarLoopForPetriNet]: 249 programPoint places, 104 predicate places. [2023-11-21 22:29:33,791 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 473 transitions, 4183 flow [2023-11-21 22:29:33,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 183.78947368421052) internal successors, (3492), 19 states have internal predecessors, (3492), 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) [2023-11-21 22:29:33,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:29:33,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:33,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:29:33,793 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-21 22:29:33,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:33,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1326956831, now seen corresponding path program 3 times [2023-11-21 22:29:33,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:33,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201719619] [2023-11-21 22:29:33,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:33,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:29:35,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:35,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201719619] [2023-11-21 22:29:35,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201719619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:35,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:35,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-11-21 22:29:35,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429923144] [2023-11-21 22:29:35,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:35,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 22:29:35,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:35,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 22:29:35,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380