./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl --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 5b29ee6f81c7ed2984792cb48e45a380cefe6f3d0c807482de3b6756d33333e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:26:36,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:36,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:26:36,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:36,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:36,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:36,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:36,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:36,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:26:36,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:26:36,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:36,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:36,646 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:36,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:36,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:26:36,649 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:26:36,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:36,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:26:36,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:36,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:26:36,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:26:36,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:26:36,652 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:26:36,653 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:26:36,653 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:26:36,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:36,654 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:36,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:36,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:36,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:26:36,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:36,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:36,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:26:36,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:26:36,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:36,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:26:36,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:26:36,659 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:26:36,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:26:36,660 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:26:36,660 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:26:36,661 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_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b29ee6f81c7ed2984792cb48e45a380cefe6f3d0c807482de3b6756d33333e4 [2023-11-12 02:26:36,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:36,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:36,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:36,976 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:36,977 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:36,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c [2023-11-12 02:26:40,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:40,330 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:40,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c [2023-11-12 02:26:40,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/data/3687adabd/6ee1c84d537348f286094b802d0bf237/FLAG9b8e9aa25 [2023-11-12 02:26:40,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/data/3687adabd/6ee1c84d537348f286094b802d0bf237 [2023-11-12 02:26:40,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:40,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:40,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:40,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:40,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:40,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145ee718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40, skipping insertion in model container [2023-11-12 02:26:40,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,416 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:40,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:40,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:40,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:40,732 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:40,732 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:26:40,740 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:40,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40 WrapperNode [2023-11-12 02:26:40,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:40,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:40,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:40,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:40,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,829 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 289 [2023-11-12 02:26:40,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:40,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:40,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:40,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:40,840 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,861 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:40,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:40,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:40,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:40,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (1/1) ... [2023-11-12 02:26:40,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:26:40,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:40,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:40,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:26:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:26:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:26:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:26:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:26:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:26:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:26:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:26:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:26:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:26:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:26:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:26:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:26:40,978 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:26:41,132 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:41,134 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:41,708 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:42,000 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:42,000 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 02:26:42,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:42 BoogieIcfgContainer [2023-11-12 02:26:42,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:42,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:26:42,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:26:42,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:26:42,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:26:40" (1/3) ... [2023-11-12 02:26:42,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667ff10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:42, skipping insertion in model container [2023-11-12 02:26:42,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:40" (2/3) ... [2023-11-12 02:26:42,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667ff10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:26:42, skipping insertion in model container [2023-11-12 02:26:42,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:42" (3/3) ... [2023-11-12 02:26:42,018 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-channel-sum.wvr.c [2023-11-12 02:26:42,028 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:26:42,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:26:42,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2023-11-12 02:26:42,042 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:26:42,173 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 02:26:42,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 271 transitions, 556 flow [2023-11-12 02:26:42,398 INFO L124 PetriNetUnfolderBase]: 13/269 cut-off events. [2023-11-12 02:26:42,398 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:26:42,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 269 events. 13/269 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 436 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 188. Up to 2 conditions per place. [2023-11-12 02:26:42,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 271 transitions, 556 flow [2023-11-12 02:26:42,421 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 245 transitions, 502 flow [2023-11-12 02:26:42,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:26:42,442 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 241 places, 245 transitions, 502 flow [2023-11-12 02:26:42,447 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 241 places, 245 transitions, 502 flow [2023-11-12 02:26:42,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 245 transitions, 502 flow [2023-11-12 02:26:42,511 INFO L124 PetriNetUnfolderBase]: 11/245 cut-off events. [2023-11-12 02:26:42,512 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:26:42,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 245 events. 11/245 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 384 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 188. Up to 2 conditions per place. [2023-11-12 02:26:42,524 INFO L119 LiptonReduction]: Number of co-enabled transitions 8200 [2023-11-12 02:26:49,701 INFO L134 LiptonReduction]: Checked pairs total: 38627 [2023-11-12 02:26:49,702 INFO L136 LiptonReduction]: Total number of compositions: 272 [2023-11-12 02:26:49,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:26:49,737 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;@54dd8b82, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:26:49,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2023-11-12 02:26:49,738 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:26:49,739 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:26:49,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:26:49,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:49,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:26:49,740 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-12 02:26:49,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:49,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1182, now seen corresponding path program 1 times [2023-11-12 02:26:49,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:49,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490071977] [2023-11-12 02:26:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:49,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:49,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:49,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:49,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490071977] [2023-11-12 02:26:49,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490071977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:49,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:49,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:26:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103568868] [2023-11-12 02:26:49,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:49,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:26:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:49,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:26:49,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:26:49,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 543 [2023-11-12 02:26:49,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 170 flow. Second operand has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:49,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:49,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 543 [2023-11-12 02:26:49,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:50,034 INFO L124 PetriNetUnfolderBase]: 214/488 cut-off events. [2023-11-12 02:26:50,035 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-12 02:26:50,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 488 events. 214/488 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2255 event pairs, 159 based on Foata normal form. 15/432 useless extension candidates. Maximal degree in co-relation 769. Up to 356 conditions per place. [2023-11-12 02:26:50,042 INFO L140 encePairwiseOnDemand]: 507/543 looper letters, 25 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-11-12 02:26:50,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 150 flow [2023-11-12 02:26:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:26:50,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:26:50,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 532 transitions. [2023-11-12 02:26:50,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48987108655616945 [2023-11-12 02:26:50,062 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 532 transitions. [2023-11-12 02:26:50,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 532 transitions. [2023-11-12 02:26:50,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:50,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 532 transitions. [2023-11-12 02:26:50,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 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) [2023-11-12 02:26:50,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 543.0) internal successors, (1629), 3 states have internal predecessors, (1629), 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) [2023-11-12 02:26:50,085 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 543.0) internal successors, (1629), 3 states have internal predecessors, (1629), 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) [2023-11-12 02:26:50,087 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 170 flow. Second operand 2 states and 532 transitions. [2023-11-12 02:26:50,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 150 flow [2023-11-12 02:26:50,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 142 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:26:50,095 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 87 flow [2023-11-12 02:26:50,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-11-12 02:26:50,105 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -38 predicate places. [2023-11-12 02:26:50,105 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 87 flow [2023-11-12 02:26:50,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:50,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:50,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:26:50,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:26:50,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-12 02:26:50,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:50,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1371459508, now seen corresponding path program 1 times [2023-11-12 02:26:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:50,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759361167] [2023-11-12 02:26:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:50,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:50,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:50,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759361167] [2023-11-12 02:26:50,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759361167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:50,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:50,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:50,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025158088] [2023-11-12 02:26:50,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:50,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:50,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:50,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:50,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 543 [2023-11-12 02:26:50,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 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) [2023-11-12 02:26:50,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:50,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 543 [2023-11-12 02:26:50,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:50,483 INFO L124 PetriNetUnfolderBase]: 214/485 cut-off events. [2023-11-12 02:26:50,483 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:26:50,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 485 events. 214/485 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2247 event pairs, 159 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 849. Up to 354 conditions per place. [2023-11-12 02:26:50,488 INFO L140 encePairwiseOnDemand]: 541/543 looper letters, 24 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-11-12 02:26:50,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 135 flow [2023-11-12 02:26:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:50,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:50,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2023-11-12 02:26:50,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358502148557397 [2023-11-12 02:26:50,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2023-11-12 02:26:50,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2023-11-12 02:26:50,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:50,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2023-11-12 02:26:50,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 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) [2023-11-12 02:26:50,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 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) [2023-11-12 02:26:50,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 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) [2023-11-12 02:26:50,503 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 87 flow. Second operand 3 states and 710 transitions. [2023-11-12 02:26:50,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 135 flow [2023-11-12 02:26:50,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 135 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:50,505 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 87 flow [2023-11-12 02:26:50,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-11-12 02:26:50,506 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -38 predicate places. [2023-11-12 02:26:50,507 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 87 flow [2023-11-12 02:26:50,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 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) [2023-11-12 02:26:50,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:50,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:50,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:26:50,509 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-12 02:26:50,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:50,509 INFO L85 PathProgramCache]: Analyzing trace with hash -582062633, now seen corresponding path program 1 times [2023-11-12 02:26:50,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:50,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195533206] [2023-11-12 02:26:50,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:50,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:50,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195533206] [2023-11-12 02:26:50,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195533206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:50,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:50,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:50,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617826664] [2023-11-12 02:26:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:50,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:50,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 543 [2023-11-12 02:26:50,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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) [2023-11-12 02:26:50,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:50,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 543 [2023-11-12 02:26:50,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:50,747 INFO L124 PetriNetUnfolderBase]: 299/618 cut-off events. [2023-11-12 02:26:50,748 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-12 02:26:50,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 618 events. 299/618 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2771 event pairs, 75 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 1126. Up to 375 conditions per place. [2023-11-12 02:26:50,753 INFO L140 encePairwiseOnDemand]: 539/543 looper letters, 37 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2023-11-12 02:26:50,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 197 flow [2023-11-12 02:26:50,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:50,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2023-11-12 02:26:50,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45058317986494784 [2023-11-12 02:26:50,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2023-11-12 02:26:50,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2023-11-12 02:26:50,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:50,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2023-11-12 02:26:50,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 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) [2023-11-12 02:26:50,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 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) [2023-11-12 02:26:50,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 543.0) internal successors, (2172), 4 states have internal predecessors, (2172), 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) [2023-11-12 02:26:50,768 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 87 flow. Second operand 3 states and 734 transitions. [2023-11-12 02:26:50,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 197 flow [2023-11-12 02:26:50,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 55 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:26:50,770 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 105 flow [2023-11-12 02:26:50,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2023-11-12 02:26:50,772 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -37 predicate places. [2023-11-12 02:26:50,772 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 105 flow [2023-11-12 02:26:50,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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) [2023-11-12 02:26:50,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:50,773 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:50,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:26:50,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-12 02:26:50,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:50,774 INFO L85 PathProgramCache]: Analyzing trace with hash 506381169, now seen corresponding path program 1 times [2023-11-12 02:26:50,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:50,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144327294] [2023-11-12 02:26:50,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:50,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:51,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144327294] [2023-11-12 02:26:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144327294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:51,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:51,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:26:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066537064] [2023-11-12 02:26:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:51,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:51,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:51,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:51,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:26:51,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 543 [2023-11-12 02:26:51,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 222.66666666666666) internal successors, (1336), 6 states have internal predecessors, (1336), 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) [2023-11-12 02:26:51,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:51,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 543 [2023-11-12 02:26:51,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:51,958 INFO L124 PetriNetUnfolderBase]: 939/1505 cut-off events. [2023-11-12 02:26:51,958 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-11-12 02:26:51,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3279 conditions, 1505 events. 939/1505 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6838 event pairs, 74 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 3275. Up to 510 conditions per place. [2023-11-12 02:26:51,971 INFO L140 encePairwiseOnDemand]: 538/543 looper letters, 104 selfloop transitions, 4 changer transitions 0/118 dead transitions. [2023-11-12 02:26:51,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 118 transitions, 531 flow [2023-11-12 02:26:51,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:26:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:26:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1420 transitions. [2023-11-12 02:26:51,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358502148557397 [2023-11-12 02:26:51,978 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1420 transitions. [2023-11-12 02:26:51,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1420 transitions. [2023-11-12 02:26:51,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:51,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1420 transitions. [2023-11-12 02:26:51,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.66666666666666) internal successors, (1420), 6 states have internal predecessors, (1420), 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) [2023-11-12 02:26:51,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 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) [2023-11-12 02:26:51,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 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) [2023-11-12 02:26:51,996 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 105 flow. Second operand 6 states and 1420 transitions. [2023-11-12 02:26:51,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 118 transitions, 531 flow [2023-11-12 02:26:51,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 118 transitions, 531 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:26:52,001 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 111 flow [2023-11-12 02:26:52,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-11-12 02:26:52,002 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -33 predicate places. [2023-11-12 02:26:52,002 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 111 flow [2023-11-12 02:26:52,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.66666666666666) internal successors, (1336), 6 states have internal predecessors, (1336), 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) [2023-11-12 02:26:52,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:52,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:52,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:26:52,004 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-12 02:26:52,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:52,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1850074731, now seen corresponding path program 1 times [2023-11-12 02:26:52,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232171218] [2023-11-12 02:26:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:52,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:52,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:52,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232171218] [2023-11-12 02:26:52,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232171218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:52,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:52,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:26:52,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439160167] [2023-11-12 02:26:52,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:52,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:52,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:52,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:26:52,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 543 [2023-11-12 02:26:52,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 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) [2023-11-12 02:26:52,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:52,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 543 [2023-11-12 02:26:52,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:52,931 INFO L124 PetriNetUnfolderBase]: 387/707 cut-off events. [2023-11-12 02:26:52,931 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2023-11-12 02:26:52,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1618 conditions, 707 events. 387/707 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2898 event pairs, 212 based on Foata normal form. 0/586 useless extension candidates. Maximal degree in co-relation 1613. Up to 494 conditions per place. [2023-11-12 02:26:52,938 INFO L140 encePairwiseOnDemand]: 537/543 looper letters, 67 selfloop transitions, 5 changer transitions 0/81 dead transitions. [2023-11-12 02:26:52,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 81 transitions, 361 flow [2023-11-12 02:26:52,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:26:52,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:26:52,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1390 transitions. [2023-11-12 02:26:52,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4266421117249847 [2023-11-12 02:26:52,945 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1390 transitions. [2023-11-12 02:26:52,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1390 transitions. [2023-11-12 02:26:52,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:52,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1390 transitions. [2023-11-12 02:26:52,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.66666666666666) internal successors, (1390), 6 states have internal predecessors, (1390), 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) [2023-11-12 02:26:52,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 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) [2023-11-12 02:26:52,964 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 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) [2023-11-12 02:26:52,964 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 111 flow. Second operand 6 states and 1390 transitions. [2023-11-12 02:26:52,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 81 transitions, 361 flow [2023-11-12 02:26:52,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 81 transitions, 346 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:26:52,968 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 112 flow [2023-11-12 02:26:52,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-11-12 02:26:52,970 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -33 predicate places. [2023-11-12 02:26:52,970 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 112 flow [2023-11-12 02:26:52,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 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) [2023-11-12 02:26:52,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:52,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:52,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:26:52,972 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-12 02:26:52,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1943927396, now seen corresponding path program 1 times [2023-11-12 02:26:52,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:52,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832066757] [2023-11-12 02:26:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:52,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832066757] [2023-11-12 02:26:53,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832066757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:53,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:53,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:26:53,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061265278] [2023-11-12 02:26:53,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:53,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:26:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:53,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:26:53,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:26:53,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 543 [2023-11-12 02:26:53,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 223.33333333333334) internal successors, (1340), 6 states have internal predecessors, (1340), 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) [2023-11-12 02:26:53,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:53,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 543 [2023-11-12 02:26:53,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:53,827 INFO L124 PetriNetUnfolderBase]: 347/641 cut-off events. [2023-11-12 02:26:53,827 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-12 02:26:53,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1447 conditions, 641 events. 347/641 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2613 event pairs, 204 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 1442. Up to 472 conditions per place. [2023-11-12 02:26:53,830 INFO L140 encePairwiseOnDemand]: 538/543 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2023-11-12 02:26:53,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 358 flow [2023-11-12 02:26:53,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:26:53,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:26:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1384 transitions. [2023-11-12 02:26:53,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42480049109883367 [2023-11-12 02:26:53,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1384 transitions. [2023-11-12 02:26:53,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1384 transitions. [2023-11-12 02:26:53,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:53,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1384 transitions. [2023-11-12 02:26:53,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.66666666666666) internal successors, (1384), 6 states have internal predecessors, (1384), 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) [2023-11-12 02:26:53,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 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) [2023-11-12 02:26:53,854 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 543.0) internal successors, (3801), 7 states have internal predecessors, (3801), 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) [2023-11-12 02:26:53,854 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 112 flow. Second operand 6 states and 1384 transitions. [2023-11-12 02:26:53,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 358 flow [2023-11-12 02:26:53,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 76 transitions, 348 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:26:53,858 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-11-12 02:26:53,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=543, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-11-12 02:26:53,861 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -34 predicate places. [2023-11-12 02:26:53,865 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-11-12 02:26:53,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.33333333333334) internal successors, (1340), 6 states have internal predecessors, (1340), 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) [2023-11-12 02:26:53,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (70 of 71 remaining) [2023-11-12 02:26:53,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (69 of 71 remaining) [2023-11-12 02:26:53,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (68 of 71 remaining) [2023-11-12 02:26:53,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (67 of 71 remaining) [2023-11-12 02:26:53,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (66 of 71 remaining) [2023-11-12 02:26:53,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (65 of 71 remaining) [2023-11-12 02:26:53,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (64 of 71 remaining) [2023-11-12 02:26:53,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (63 of 71 remaining) [2023-11-12 02:26:53,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (62 of 71 remaining) [2023-11-12 02:26:53,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (61 of 71 remaining) [2023-11-12 02:26:53,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (60 of 71 remaining) [2023-11-12 02:26:53,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (59 of 71 remaining) [2023-11-12 02:26:53,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (58 of 71 remaining) [2023-11-12 02:26:53,872 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (57 of 71 remaining) [2023-11-12 02:26:53,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (56 of 71 remaining) [2023-11-12 02:26:53,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (55 of 71 remaining) [2023-11-12 02:26:53,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (54 of 71 remaining) [2023-11-12 02:26:53,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (53 of 71 remaining) [2023-11-12 02:26:53,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (52 of 71 remaining) [2023-11-12 02:26:53,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (51 of 71 remaining) [2023-11-12 02:26:53,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (50 of 71 remaining) [2023-11-12 02:26:53,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (49 of 71 remaining) [2023-11-12 02:26:53,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (48 of 71 remaining) [2023-11-12 02:26:53,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (47 of 71 remaining) [2023-11-12 02:26:53,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (46 of 71 remaining) [2023-11-12 02:26:53,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (45 of 71 remaining) [2023-11-12 02:26:53,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (44 of 71 remaining) [2023-11-12 02:26:53,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (43 of 71 remaining) [2023-11-12 02:26:53,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (42 of 71 remaining) [2023-11-12 02:26:53,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 71 remaining) [2023-11-12 02:26:53,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 71 remaining) [2023-11-12 02:26:53,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 71 remaining) [2023-11-12 02:26:53,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 71 remaining) [2023-11-12 02:26:53,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 71 remaining) [2023-11-12 02:26:53,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 71 remaining) [2023-11-12 02:26:53,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 71 remaining) [2023-11-12 02:26:53,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 71 remaining) [2023-11-12 02:26:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 71 remaining) [2023-11-12 02:26:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (32 of 71 remaining) [2023-11-12 02:26:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 71 remaining) [2023-11-12 02:26:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 71 remaining) [2023-11-12 02:26:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 71 remaining) [2023-11-12 02:26:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 71 remaining) [2023-11-12 02:26:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 71 remaining) [2023-11-12 02:26:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 71 remaining) [2023-11-12 02:26:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 71 remaining) [2023-11-12 02:26:53,894 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 71 remaining) [2023-11-12 02:26:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 71 remaining) [2023-11-12 02:26:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (22 of 71 remaining) [2023-11-12 02:26:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (21 of 71 remaining) [2023-11-12 02:26:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (20 of 71 remaining) [2023-11-12 02:26:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (19 of 71 remaining) [2023-11-12 02:26:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 71 remaining) [2023-11-12 02:26:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (17 of 71 remaining) [2023-11-12 02:26:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (16 of 71 remaining) [2023-11-12 02:26:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (15 of 71 remaining) [2023-11-12 02:26:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (14 of 71 remaining) [2023-11-12 02:26:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (13 of 71 remaining) [2023-11-12 02:26:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 71 remaining) [2023-11-12 02:26:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 71 remaining) [2023-11-12 02:26:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (10 of 71 remaining) [2023-11-12 02:26:53,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (9 of 71 remaining) [2023-11-12 02:26:53,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (8 of 71 remaining) [2023-11-12 02:26:53,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 71 remaining) [2023-11-12 02:26:53,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 71 remaining) [2023-11-12 02:26:53,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 71 remaining) [2023-11-12 02:26:53,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 71 remaining) [2023-11-12 02:26:53,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (3 of 71 remaining) [2023-11-12 02:26:53,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 71 remaining) [2023-11-12 02:26:53,900 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 71 remaining) [2023-11-12 02:26:53,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 71 remaining) [2023-11-12 02:26:53,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:26:53,901 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-12 02:26:53,908 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:26:53,908 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:26:53,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:26:53 BasicIcfg [2023-11-12 02:26:53,916 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:26:53,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:53,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:53,917 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:53,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:42" (3/4) ... [2023-11-12 02:26:53,919 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:26:53,922 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-12 02:26:53,923 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-12 02:26:53,931 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-12 02:26:53,931 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:26:53,932 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:26:53,932 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:26:54,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:26:54,032 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:26:54,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:54,033 INFO L158 Benchmark]: Toolchain (without parser) took 13663.44ms. Allocated memory was 178.3MB in the beginning and 264.2MB in the end (delta: 86.0MB). Free memory was 133.0MB in the beginning and 122.9MB in the end (delta: 10.2MB). Peak memory consumption was 99.3MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,034 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory was 98.9MB in the beginning and 98.9MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:54,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.87ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 119.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.53ms. Allocated memory is still 178.3MB. Free memory was 119.8MB in the beginning and 117.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,035 INFO L158 Benchmark]: Boogie Preprocessor took 45.52ms. Allocated memory is still 178.3MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,035 INFO L158 Benchmark]: RCFGBuilder took 1128.17ms. Allocated memory is still 178.3MB. Free memory was 114.9MB in the beginning and 137.7MB in the end (delta: -22.9MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,036 INFO L158 Benchmark]: TraceAbstraction took 11907.92ms. Allocated memory was 178.3MB in the beginning and 264.2MB in the end (delta: 86.0MB). Free memory was 136.7MB in the beginning and 128.1MB in the end (delta: 8.6MB). Peak memory consumption was 96.6MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,036 INFO L158 Benchmark]: Witness Printer took 116.65ms. Allocated memory is still 264.2MB. Free memory was 128.1MB in the beginning and 122.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:26:54,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory was 98.9MB in the beginning and 98.9MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.87ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 119.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.53ms. Allocated memory is still 178.3MB. Free memory was 119.8MB in the beginning and 117.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.52ms. Allocated memory is still 178.3MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1128.17ms. Allocated memory is still 178.3MB. Free memory was 114.9MB in the beginning and 137.7MB in the end (delta: -22.9MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11907.92ms. Allocated memory was 178.3MB in the beginning and 264.2MB in the end (delta: 86.0MB). Free memory was 136.7MB in the beginning and 128.1MB in the end (delta: 8.6MB). Peak memory consumption was 96.6MB. Max. memory is 16.1GB. * Witness Printer took 116.65ms. Allocated memory is still 264.2MB. Free memory was 128.1MB in the beginning and 122.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 241 PlacesBefore, 81 PlacesAfterwards, 245 TransitionsBefore, 79 TransitionsAfterwards, 8200 CoEnabledTransitionPairs, 9 FixpointIterations, 131 TrivialSequentialCompositions, 106 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 17 ConcurrentYvCompositions, 6 ChoiceCompositions, 272 TotalNumberOfCompositions, 38627 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15904, independent: 15139, independent conditional: 0, independent unconditional: 15139, dependent: 765, dependent conditional: 0, dependent unconditional: 765, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4404, independent: 4304, independent conditional: 0, independent unconditional: 4304, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15904, independent: 10835, independent conditional: 0, independent unconditional: 10835, dependent: 665, dependent conditional: 0, dependent unconditional: 665, unknown: 4404, unknown conditional: 0, unknown unconditional: 4404] , Statistics on independence cache: Total cache size (in pairs): 681, Positive cache size: 631, Positive conditional cache size: 0, Positive unconditional cache size: 631, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 364 locations, 71 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 284 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 162 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1013 IncrementalHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 162 mSolverCounterUnsat, 1 mSDtfsCounter, 1013 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 40 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:26:54,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d699cca-30a2-4060-a7d0-387183951062/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE