./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.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_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/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_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/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_b33c188a-edde-4c27-a980-b585b37623ac/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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:20:13,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:20:13,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:20:13,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:20:13,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:20:13,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:20:13,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:20:13,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:20:13,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:20:13,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:20:13,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:20:13,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:20:13,563 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:20:13,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:20:13,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:20:13,566 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:20:13,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:20:13,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:20:13,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:20:13,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:20:13,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:20:13,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:20:13,569 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:20:13,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:20:13,570 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:20:13,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:20:13,571 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:20:13,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:20:13,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:20:13,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:20:13,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:13,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:20:13,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:20:13,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:20:13,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:20:13,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:20:13,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:20:13,581 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:20:13,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:20:13,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:20:13,582 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:20:13,583 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_b33c188a-edde-4c27-a980-b585b37623ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2023-11-12 02:20:13,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:20:13,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:20:13,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:20:13,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:20:13,909 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:20:13,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 02:20:17,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:20:17,381 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:20:17,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 02:20:17,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/data/8dbae0c6d/4db4f88406c54a7a9ffa9963a582d3b4/FLAGa642a1cf6 [2023-11-12 02:20:17,404 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/data/8dbae0c6d/4db4f88406c54a7a9ffa9963a582d3b4 [2023-11-12 02:20:17,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:20:17,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:20:17,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:17,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:20:17,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:20:17,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfc6d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17, skipping insertion in model container [2023-11-12 02:20:17,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,443 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:20:17,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:17,683 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:20:17,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:20:17,741 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:20:17,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17 WrapperNode [2023-11-12 02:20:17,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:20:17,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:17,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:20:17,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:20:17,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,817 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 417 [2023-11-12 02:20:17,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:20:17,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:20:17,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:20:17,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:20:17,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,839 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,868 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,875 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:20:17,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:20:17,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:20:17,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:20:17,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (1/1) ... [2023-11-12 02:20:17,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:20:17,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:20:17,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:20:17,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c188a-edde-4c27-a980-b585b37623ac/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:20:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:20:17,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:20:17,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:20:17,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:20:17,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:20:17,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:20:17,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:20:17,980 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 02:20:18,110 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:20:18,112 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:20:18,883 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:20:18,904 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:20:18,904 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 02:20:18,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:18 BoogieIcfgContainer [2023-11-12 02:20:18,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:20:18,912 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:20:18,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:20:18,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:20:18,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:20:17" (1/3) ... [2023-11-12 02:20:18,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec8c2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:18, skipping insertion in model container [2023-11-12 02:20:18,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:20:17" (2/3) ... [2023-11-12 02:20:18,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec8c2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:20:18, skipping insertion in model container [2023-11-12 02:20:18,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:20:18" (3/3) ... [2023-11-12 02:20:18,921 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2023-11-12 02:20:18,930 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:20:18,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:20:18,942 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-11-12 02:20:18,942 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:20:19,143 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 02:20:19,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 529 places, 548 transitions, 1117 flow [2023-11-12 02:20:19,506 INFO L124 PetriNetUnfolderBase]: 29/545 cut-off events. [2023-11-12 02:20:19,506 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:20:19,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 545 events. 29/545 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 954 event pairs, 0 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 339. Up to 2 conditions per place. [2023-11-12 02:20:19,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 529 places, 548 transitions, 1117 flow [2023-11-12 02:20:19,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 495 transitions, 1008 flow [2023-11-12 02:20:19,545 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:20:19,567 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 495 transitions, 1008 flow [2023-11-12 02:20:19,571 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 495 transitions, 1008 flow [2023-11-12 02:20:19,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 495 transitions, 1008 flow [2023-11-12 02:20:19,722 INFO L124 PetriNetUnfolderBase]: 26/495 cut-off events. [2023-11-12 02:20:19,723 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:20:19,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 495 events. 26/495 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 837 event pairs, 0 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 339. Up to 2 conditions per place. [2023-11-12 02:20:19,764 INFO L119 LiptonReduction]: Number of co-enabled transitions 49288 [2023-11-12 02:20:34,337 INFO L134 LiptonReduction]: Checked pairs total: 173052 [2023-11-12 02:20:34,338 INFO L136 LiptonReduction]: Total number of compositions: 512 [2023-11-12 02:20:34,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:20:34,362 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;@74e29523, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:20:34,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-12 02:20:34,365 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:20:34,365 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:20:34,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:20:34,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:34,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:20:34,367 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:34,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:34,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1997, now seen corresponding path program 1 times [2023-11-12 02:20:34,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:34,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104371449] [2023-11-12 02:20:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:34,495 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 02:20:34,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:34,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104371449] [2023-11-12 02:20:34,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104371449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:34,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:34,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:20:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829692540] [2023-11-12 02:20:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:34,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:20:34,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:34,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:20:34,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:20:34,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 1060 [2023-11-12 02:20:34,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 270 flow. Second operand has 2 states, 2 states have (on average 518.5) internal successors, (1037), 2 states have internal predecessors, (1037), 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 02:20:34,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:34,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 1060 [2023-11-12 02:20:34,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:35,396 INFO L124 PetriNetUnfolderBase]: 1584/4721 cut-off events. [2023-11-12 02:20:35,398 INFO L125 PetriNetUnfolderBase]: For 208/208 co-relation queries the response was YES. [2023-11-12 02:20:35,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7118 conditions, 4721 events. 1584/4721 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 41438 event pairs, 1277 based on Foata normal form. 594/4641 useless extension candidates. Maximal degree in co-relation 5832. Up to 2270 conditions per place. [2023-11-12 02:20:35,446 INFO L140 encePairwiseOnDemand]: 1036/1060 looper letters, 37 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2023-11-12 02:20:35,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 102 transitions, 298 flow [2023-11-12 02:20:35,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:20:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:20:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1098 transitions. [2023-11-12 02:20:35,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179245283018868 [2023-11-12 02:20:35,473 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1098 transitions. [2023-11-12 02:20:35,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1098 transitions. [2023-11-12 02:20:35,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:35,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1098 transitions. [2023-11-12 02:20:35,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 549.0) internal successors, (1098), 2 states have internal predecessors, (1098), 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 02:20:35,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1060.0) internal successors, (3180), 3 states have internal predecessors, (3180), 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 02:20:35,504 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1060.0) internal successors, (3180), 3 states have internal predecessors, (3180), 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 02:20:35,506 INFO L175 Difference]: Start difference. First operand has 127 places, 126 transitions, 270 flow. Second operand 2 states and 1098 transitions. [2023-11-12 02:20:35,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 102 transitions, 298 flow [2023-11-12 02:20:35,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 286 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:20:35,519 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 207 flow [2023-11-12 02:20:35,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=207, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2023-11-12 02:20:35,526 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -26 predicate places. [2023-11-12 02:20:35,526 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 207 flow [2023-11-12 02:20:35,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 518.5) internal successors, (1037), 2 states have internal predecessors, (1037), 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 02:20:35,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:35,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:35,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:20:35,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:35,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:35,541 INFO L85 PathProgramCache]: Analyzing trace with hash 138613463, now seen corresponding path program 1 times [2023-11-12 02:20:35,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:35,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673708606] [2023-11-12 02:20:35,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:35,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:35,742 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 02:20:35,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:35,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673708606] [2023-11-12 02:20:35,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673708606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:35,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:35,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:35,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454548852] [2023-11-12 02:20:35,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:35,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:35,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:35,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:35,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:35,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 1060 [2023-11-12 02:20:35,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 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 02:20:35,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:35,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 1060 [2023-11-12 02:20:35,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:36,733 INFO L124 PetriNetUnfolderBase]: 2426/6396 cut-off events. [2023-11-12 02:20:36,733 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-12 02:20:36,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9902 conditions, 6396 events. 2426/6396 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 53607 event pairs, 2025 based on Foata normal form. 0/5511 useless extension candidates. Maximal degree in co-relation 9899. Up to 3460 conditions per place. [2023-11-12 02:20:36,791 INFO L140 encePairwiseOnDemand]: 1056/1060 looper letters, 39 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2023-11-12 02:20:36,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 98 transitions, 281 flow [2023-11-12 02:20:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:20:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1540 transitions. [2023-11-12 02:20:36,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48427672955974843 [2023-11-12 02:20:36,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1540 transitions. [2023-11-12 02:20:36,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1540 transitions. [2023-11-12 02:20:36,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:36,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1540 transitions. [2023-11-12 02:20:36,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 513.3333333333334) internal successors, (1540), 3 states have internal predecessors, (1540), 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 02:20:36,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 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 02:20:36,818 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 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 02:20:36,818 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 207 flow. Second operand 3 states and 1540 transitions. [2023-11-12 02:20:36,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 98 transitions, 281 flow [2023-11-12 02:20:36,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 98 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:20:36,822 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 203 flow [2023-11-12 02:20:36,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-12 02:20:36,824 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-12 02:20:36,824 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 203 flow [2023-11-12 02:20:36,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 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 02:20:36,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:36,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:36,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:20:36,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:36,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:36,827 INFO L85 PathProgramCache]: Analyzing trace with hash 63855875, now seen corresponding path program 1 times [2023-11-12 02:20:36,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:36,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882356498] [2023-11-12 02:20:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:36,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:36,921 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 02:20:36,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:36,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882356498] [2023-11-12 02:20:36,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882356498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:36,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:36,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:36,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030520970] [2023-11-12 02:20:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:36,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:36,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:36,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:36,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1060 [2023-11-12 02:20:36,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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 02:20:36,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:36,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1060 [2023-11-12 02:20:36,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:37,839 INFO L124 PetriNetUnfolderBase]: 2557/6399 cut-off events. [2023-11-12 02:20:37,840 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-12 02:20:37,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 6399 events. 2557/6399 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 54572 event pairs, 495 based on Foata normal form. 0/5601 useless extension candidates. Maximal degree in co-relation 10114. Up to 2923 conditions per place. [2023-11-12 02:20:37,886 INFO L140 encePairwiseOnDemand]: 1056/1060 looper letters, 59 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2023-11-12 02:20:37,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 118 transitions, 369 flow [2023-11-12 02:20:37,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:37,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:20:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1596 transitions. [2023-11-12 02:20:37,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018867924528302 [2023-11-12 02:20:37,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1596 transitions. [2023-11-12 02:20:37,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1596 transitions. [2023-11-12 02:20:37,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:37,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1596 transitions. [2023-11-12 02:20:37,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.0) internal successors, (1596), 3 states have internal predecessors, (1596), 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 02:20:37,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 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 02:20:37,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 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 02:20:37,913 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 203 flow. Second operand 3 states and 1596 transitions. [2023-11-12 02:20:37,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 118 transitions, 369 flow [2023-11-12 02:20:37,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 118 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:20:37,919 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 212 flow [2023-11-12 02:20:37,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-12 02:20:37,921 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-12 02:20:37,922 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 212 flow [2023-11-12 02:20:37,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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 02:20:37,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:37,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:37,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:20:37,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:37,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:37,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1270403807, now seen corresponding path program 1 times [2023-11-12 02:20:37,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:37,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171712433] [2023-11-12 02:20:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:37,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:38,031 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 02:20:38,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:38,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171712433] [2023-11-12 02:20:38,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171712433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:38,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:38,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:20:38,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725075907] [2023-11-12 02:20:38,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:38,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:20:38,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:38,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:20:38,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:20:38,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1060 [2023-11-12 02:20:38,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 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 02:20:38,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:38,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1060 [2023-11-12 02:20:38,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:39,203 INFO L124 PetriNetUnfolderBase]: 3698/8424 cut-off events. [2023-11-12 02:20:39,204 INFO L125 PetriNetUnfolderBase]: For 520/520 co-relation queries the response was YES. [2023-11-12 02:20:39,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14494 conditions, 8424 events. 3698/8424 cut-off events. For 520/520 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 71676 event pairs, 953 based on Foata normal form. 0/7330 useless extension candidates. Maximal degree in co-relation 14490. Up to 3780 conditions per place. [2023-11-12 02:20:39,284 INFO L140 encePairwiseOnDemand]: 1056/1060 looper letters, 63 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-11-12 02:20:39,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 120 transitions, 399 flow [2023-11-12 02:20:39,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:20:39,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:20:39,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1596 transitions. [2023-11-12 02:20:39,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018867924528302 [2023-11-12 02:20:39,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1596 transitions. [2023-11-12 02:20:39,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1596 transitions. [2023-11-12 02:20:39,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:39,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1596 transitions. [2023-11-12 02:20:39,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.0) internal successors, (1596), 3 states have internal predecessors, (1596), 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 02:20:39,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 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 02:20:39,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 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 02:20:39,320 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 212 flow. Second operand 3 states and 1596 transitions. [2023-11-12 02:20:39,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 120 transitions, 399 flow [2023-11-12 02:20:39,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 120 transitions, 399 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:20:39,325 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 222 flow [2023-11-12 02:20:39,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2023-11-12 02:20:39,328 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-11-12 02:20:39,328 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 222 flow [2023-11-12 02:20:39,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 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 02:20:39,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:39,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:39,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:20:39,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:39,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:39,331 INFO L85 PathProgramCache]: Analyzing trace with hash -92101910, now seen corresponding path program 1 times [2023-11-12 02:20:39,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:39,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564531296] [2023-11-12 02:20:39,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:39,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:39,931 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 02:20:39,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:39,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564531296] [2023-11-12 02:20:39,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564531296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:39,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:39,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:20:39,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320120929] [2023-11-12 02:20:39,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:39,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:20:39,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:39,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:20:39,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:20:40,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 1060 [2023-11-12 02:20:40,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 494.5) internal successors, (2967), 6 states have internal predecessors, (2967), 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 02:20:40,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:40,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 1060 [2023-11-12 02:20:40,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:44,401 INFO L124 PetriNetUnfolderBase]: 18400/30721 cut-off events. [2023-11-12 02:20:44,401 INFO L125 PetriNetUnfolderBase]: For 3265/3265 co-relation queries the response was YES. [2023-11-12 02:20:44,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60478 conditions, 30721 events. 18400/30721 cut-off events. For 3265/3265 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 230715 event pairs, 4999 based on Foata normal form. 0/26219 useless extension candidates. Maximal degree in co-relation 60473. Up to 12638 conditions per place. [2023-11-12 02:20:44,647 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 145 selfloop transitions, 21 changer transitions 0/214 dead transitions. [2023-11-12 02:20:44,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 214 transitions, 848 flow [2023-11-12 02:20:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:20:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:20:44,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3104 transitions. [2023-11-12 02:20:44,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880503144654088 [2023-11-12 02:20:44,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3104 transitions. [2023-11-12 02:20:44,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3104 transitions. [2023-11-12 02:20:44,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:44,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3104 transitions. [2023-11-12 02:20:44,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 517.3333333333334) internal successors, (3104), 6 states have internal predecessors, (3104), 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 02:20:44,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:44,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:44,699 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 222 flow. Second operand 6 states and 3104 transitions. [2023-11-12 02:20:44,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 214 transitions, 848 flow [2023-11-12 02:20:44,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 214 transitions, 848 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:20:44,710 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 364 flow [2023-11-12 02:20:44,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2023-11-12 02:20:44,714 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -17 predicate places. [2023-11-12 02:20:44,714 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 364 flow [2023-11-12 02:20:44,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 494.5) internal successors, (2967), 6 states have internal predecessors, (2967), 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 02:20:44,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:44,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:44,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:20:44,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:44,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:44,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1929258759, now seen corresponding path program 1 times [2023-11-12 02:20:44,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:44,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621991557] [2023-11-12 02:20:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:44,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:44,870 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 02:20:44,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:44,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621991557] [2023-11-12 02:20:44,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621991557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:44,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:44,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:44,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844545976] [2023-11-12 02:20:44,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:44,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:20:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:44,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:45,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 1060 [2023-11-12 02:20:45,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 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 02:20:45,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:45,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 1060 [2023-11-12 02:20:45,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:48,731 INFO L124 PetriNetUnfolderBase]: 10098/25954 cut-off events. [2023-11-12 02:20:48,731 INFO L125 PetriNetUnfolderBase]: For 2699/2819 co-relation queries the response was YES. [2023-11-12 02:20:48,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47311 conditions, 25954 events. 10098/25954 cut-off events. For 2699/2819 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 272713 event pairs, 4930 based on Foata normal form. 0/23107 useless extension candidates. Maximal degree in co-relation 47301. Up to 8269 conditions per place. [2023-11-12 02:20:49,060 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 89 selfloop transitions, 12 changer transitions 0/179 dead transitions. [2023-11-12 02:20:49,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 179 transitions, 715 flow [2023-11-12 02:20:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:20:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:20:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3059 transitions. [2023-11-12 02:20:49,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4809748427672956 [2023-11-12 02:20:49,073 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3059 transitions. [2023-11-12 02:20:49,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3059 transitions. [2023-11-12 02:20:49,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:49,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3059 transitions. [2023-11-12 02:20:49,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 509.8333333333333) internal successors, (3059), 6 states have internal predecessors, (3059), 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 02:20:49,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:49,116 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:49,117 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 364 flow. Second operand 6 states and 3059 transitions. [2023-11-12 02:20:49,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 179 transitions, 715 flow [2023-11-12 02:20:49,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 179 transitions, 715 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:20:49,217 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 439 flow [2023-11-12 02:20:49,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=118, PETRI_TRANSITIONS=128} [2023-11-12 02:20:49,221 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -9 predicate places. [2023-11-12 02:20:49,222 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 439 flow [2023-11-12 02:20:49,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 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 02:20:49,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:49,223 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 02:20:49,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:20:49,223 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:49,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1108891965, now seen corresponding path program 1 times [2023-11-12 02:20:49,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:49,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411508953] [2023-11-12 02:20:49,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:49,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:49,379 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 02:20:49,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:49,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411508953] [2023-11-12 02:20:49,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411508953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:49,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:49,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:49,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215422451] [2023-11-12 02:20:49,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:49,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:20:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:49,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:49,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 1060 [2023-11-12 02:20:49,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 439 flow. Second operand has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 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 02:20:49,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:49,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 1060 [2023-11-12 02:20:49,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:52,295 INFO L124 PetriNetUnfolderBase]: 8169/20993 cut-off events. [2023-11-12 02:20:52,295 INFO L125 PetriNetUnfolderBase]: For 4360/4453 co-relation queries the response was YES. [2023-11-12 02:20:52,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40522 conditions, 20993 events. 8169/20993 cut-off events. For 4360/4453 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 212487 event pairs, 4742 based on Foata normal form. 0/18765 useless extension candidates. Maximal degree in co-relation 40508. Up to 8269 conditions per place. [2023-11-12 02:20:52,478 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 81 selfloop transitions, 12 changer transitions 0/171 dead transitions. [2023-11-12 02:20:52,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 171 transitions, 740 flow [2023-11-12 02:20:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:20:52,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:20:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3053 transitions. [2023-11-12 02:20:52,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4800314465408805 [2023-11-12 02:20:52,491 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3053 transitions. [2023-11-12 02:20:52,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3053 transitions. [2023-11-12 02:20:52,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:52,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3053 transitions. [2023-11-12 02:20:52,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 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 02:20:52,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:52,520 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:52,520 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 439 flow. Second operand 6 states and 3053 transitions. [2023-11-12 02:20:52,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 171 transitions, 740 flow [2023-11-12 02:20:52,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 171 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:20:52,555 INFO L231 Difference]: Finished difference. Result has 125 places, 130 transitions, 479 flow [2023-11-12 02:20:52,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=125, PETRI_TRANSITIONS=130} [2023-11-12 02:20:52,559 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2023-11-12 02:20:52,559 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 130 transitions, 479 flow [2023-11-12 02:20:52,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 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 02:20:52,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:52,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:52,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:20:52,561 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:52,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:52,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1162852759, now seen corresponding path program 1 times [2023-11-12 02:20:52,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:52,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6594461] [2023-11-12 02:20:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:52,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:52,725 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 02:20:52,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:52,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6594461] [2023-11-12 02:20:52,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6594461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:52,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:52,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:20:52,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320426487] [2023-11-12 02:20:52,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:52,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:20:52,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:52,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:20:52,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:20:53,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 1060 [2023-11-12 02:20:53,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 130 transitions, 479 flow. Second operand has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 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 02:20:53,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:53,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 1060 [2023-11-12 02:20:53,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:20:55,188 INFO L124 PetriNetUnfolderBase]: 6716/16851 cut-off events. [2023-11-12 02:20:55,188 INFO L125 PetriNetUnfolderBase]: For 4048/4123 co-relation queries the response was YES. [2023-11-12 02:20:55,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34233 conditions, 16851 events. 6716/16851 cut-off events. For 4048/4123 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 160535 event pairs, 4011 based on Foata normal form. 0/14867 useless extension candidates. Maximal degree in co-relation 34216. Up to 8269 conditions per place. [2023-11-12 02:20:55,542 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 63 selfloop transitions, 12 changer transitions 0/153 dead transitions. [2023-11-12 02:20:55,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 153 transitions, 702 flow [2023-11-12 02:20:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:20:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:20:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3037 transitions. [2023-11-12 02:20:55,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47751572327044023 [2023-11-12 02:20:55,554 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3037 transitions. [2023-11-12 02:20:55,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3037 transitions. [2023-11-12 02:20:55,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:20:55,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3037 transitions. [2023-11-12 02:20:55,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 506.1666666666667) internal successors, (3037), 6 states have internal predecessors, (3037), 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 02:20:55,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:55,578 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:20:55,579 INFO L175 Difference]: Start difference. First operand has 125 places, 130 transitions, 479 flow. Second operand 6 states and 3037 transitions. [2023-11-12 02:20:55,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 153 transitions, 702 flow [2023-11-12 02:20:55,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 153 transitions, 684 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:20:55,608 INFO L231 Difference]: Finished difference. Result has 129 places, 132 transitions, 501 flow [2023-11-12 02:20:55,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=129, PETRI_TRANSITIONS=132} [2023-11-12 02:20:55,610 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2023-11-12 02:20:55,610 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 132 transitions, 501 flow [2023-11-12 02:20:55,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 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 02:20:55,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:20:55,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:20:55,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:20:55,611 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:20:55,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:20:55,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1812618445, now seen corresponding path program 1 times [2023-11-12 02:20:55,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:20:55,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923073820] [2023-11-12 02:20:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:20:55,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:20:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:20:56,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:20:56,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:20:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923073820] [2023-11-12 02:20:56,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923073820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:20:56,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:20:56,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:20:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505948532] [2023-11-12 02:20:56,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:20:56,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:20:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:20:56,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:20:56,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:20:56,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1060 [2023-11-12 02:20:56,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 493.6666666666667) internal successors, (2962), 6 states have internal predecessors, (2962), 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 02:20:56,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:20:56,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1060 [2023-11-12 02:20:56,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:21:01,687 INFO L124 PetriNetUnfolderBase]: 19309/36976 cut-off events. [2023-11-12 02:21:01,688 INFO L125 PetriNetUnfolderBase]: For 12857/13157 co-relation queries the response was YES. [2023-11-12 02:21:01,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83634 conditions, 36976 events. 19309/36976 cut-off events. For 12857/13157 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 326847 event pairs, 7081 based on Foata normal form. 0/32712 useless extension candidates. Maximal degree in co-relation 83615. Up to 20100 conditions per place. [2023-11-12 02:21:02,007 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 162 selfloop transitions, 85 changer transitions 0/300 dead transitions. [2023-11-12 02:21:02,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 300 transitions, 1703 flow [2023-11-12 02:21:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:21:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:21:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3093 transitions. [2023-11-12 02:21:02,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4863207547169811 [2023-11-12 02:21:02,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3093 transitions. [2023-11-12 02:21:02,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3093 transitions. [2023-11-12 02:21:02,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:21:02,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3093 transitions. [2023-11-12 02:21:02,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 515.5) internal successors, (3093), 6 states have internal predecessors, (3093), 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 02:21:02,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:21:02,043 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 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 02:21:02,043 INFO L175 Difference]: Start difference. First operand has 129 places, 132 transitions, 501 flow. Second operand 6 states and 3093 transitions. [2023-11-12 02:21:02,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 300 transitions, 1703 flow [2023-11-12 02:21:02,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 300 transitions, 1685 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:21:02,104 INFO L231 Difference]: Finished difference. Result has 135 places, 216 transitions, 1247 flow [2023-11-12 02:21:02,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1247, PETRI_PLACES=135, PETRI_TRANSITIONS=216} [2023-11-12 02:21:02,105 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 8 predicate places. [2023-11-12 02:21:02,105 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 216 transitions, 1247 flow [2023-11-12 02:21:02,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 493.6666666666667) internal successors, (2962), 6 states have internal predecessors, (2962), 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 02:21:02,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:21:02,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:02,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:21:02,107 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-12 02:21:02,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:02,107 INFO L85 PathProgramCache]: Analyzing trace with hash 2129709039, now seen corresponding path program 1 times [2023-11-12 02:21:02,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:21:02,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17879512] [2023-11-12 02:21:02,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:02,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:21:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:21:02,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:21:02,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17879512] [2023-11-12 02:21:02,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17879512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:02,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:02,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:21:02,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18990910] [2023-11-12 02:21:02,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:02,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:21:02,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:21:02,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:21:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30