./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:06:49,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:06:49,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:06:49,168 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:06:49,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:06:49,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:06:49,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:06:49,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:06:49,204 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:06:49,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:06:49,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:06:49,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:06:49,211 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:06:49,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:06:49,214 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:06:49,214 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:06:49,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:06:49,215 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:06:49,215 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:06:49,216 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:06:49,216 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:06:49,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:06:49,217 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:06:49,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:06:49,219 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:06:49,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:06:49,220 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:06:49,221 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:06:49,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:06:49,222 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:06:49,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:49,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:06:49,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:06:49,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:06:49,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:06:49,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:06:49,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:06:49,232 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:06:49,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:06:49,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:06:49,233 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:06:49,236 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_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2023-11-19 08:06:49,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:06:49,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:06:49,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:06:49,540 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:06:49,540 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:06:49,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-19 08:06:52,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:06:52,940 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:06:52,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-19 08:06:52,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/data/34e4a843b/06f97eea8b924518b44ead13284007a1/FLAG4908aa5e6 [2023-11-19 08:06:52,965 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/data/34e4a843b/06f97eea8b924518b44ead13284007a1 [2023-11-19 08:06:52,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:06:52,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:06:52,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:52,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:06:52,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:06:52,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:52" (1/1) ... [2023-11-19 08:06:52,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6fb8d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:52, skipping insertion in model container [2023-11-19 08:06:52,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:52" (1/1) ... [2023-11-19 08:06:53,013 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:06:53,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:53,243 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:06:53,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:06:53,304 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:06:53,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53 WrapperNode [2023-11-19 08:06:53,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:06:53,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:53,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:06:53,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:06:53,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,372 INFO L138 Inliner]: procedures = 25, calls = 47, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 310 [2023-11-19 08:06:53,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:06:53,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:06:53,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:06:53,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:06:53,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:06:53,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:06:53,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:06:53,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:06:53,451 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (1/1) ... [2023-11-19 08:06:53,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:06:53,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:06:53,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:06:53,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aface74-83ac-4528-a31a-4096f7dd6bed/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:06:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:06:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:06:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:06:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:06:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 08:06:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 08:06:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 08:06:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 08:06:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 08:06:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 08:06:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:06:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:06:53,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:06:53,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:06:53,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:06:53,553 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:06:53,744 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:06:53,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:06:54,726 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:06:54,756 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:06:54,756 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-19 08:06:54,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:54 BoogieIcfgContainer [2023-11-19 08:06:54,764 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:06:54,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:06:54,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:06:54,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:06:54,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:52" (1/3) ... [2023-11-19 08:06:54,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a28460a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:54, skipping insertion in model container [2023-11-19 08:06:54,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:53" (2/3) ... [2023-11-19 08:06:54,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a28460a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:54, skipping insertion in model container [2023-11-19 08:06:54,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:54" (3/3) ... [2023-11-19 08:06:54,774 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2023-11-19 08:06:54,783 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:06:54,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:06:54,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-19 08:06:54,795 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:06:54,944 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 08:06:55,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 523 places, 540 transitions, 1101 flow [2023-11-19 08:06:55,327 INFO L124 PetriNetUnfolderBase]: 27/537 cut-off events. [2023-11-19 08:06:55,327 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:06:55,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 537 events. 27/537 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 757 event pairs, 0 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 396. Up to 2 conditions per place. [2023-11-19 08:06:55,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 523 places, 540 transitions, 1101 flow [2023-11-19 08:06:55,355 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 496 places, 512 transitions, 1042 flow [2023-11-19 08:06:55,360 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:06:55,377 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 496 places, 512 transitions, 1042 flow [2023-11-19 08:06:55,386 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 496 places, 512 transitions, 1042 flow [2023-11-19 08:06:55,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 496 places, 512 transitions, 1042 flow [2023-11-19 08:06:55,523 INFO L124 PetriNetUnfolderBase]: 26/512 cut-off events. [2023-11-19 08:06:55,524 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:06:55,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 512 events. 26/512 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 753 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 396. Up to 2 conditions per place. [2023-11-19 08:06:55,546 INFO L119 LiptonReduction]: Number of co-enabled transitions 21474 [2023-11-19 08:07:10,169 INFO L134 LiptonReduction]: Checked pairs total: 201946 [2023-11-19 08:07:10,170 INFO L136 LiptonReduction]: Total number of compositions: 490 [2023-11-19 08:07:10,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:07:10,194 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;@34b1c2ff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:07:10,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-19 08:07:10,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:07:10,196 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:07:10,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:07:10,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:10,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:07:10,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:10,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:10,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1853, now seen corresponding path program 1 times [2023-11-19 08:07:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:10,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565321469] [2023-11-19 08:07:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:10,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:10,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:10,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:10,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565321469] [2023-11-19 08:07:10,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565321469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:10,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:10,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:07:10,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972066018] [2023-11-19 08:07:10,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:10,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:07:10,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:07:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:07:10,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 1030 [2023-11-19 08:07:10,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 168 transitions, 354 flow. Second operand has 2 states, 2 states have (on average 515.5) internal successors, (1031), 2 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:10,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:10,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 1030 [2023-11-19 08:07:10,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:11,152 INFO L124 PetriNetUnfolderBase]: 997/3953 cut-off events. [2023-11-19 08:07:11,152 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2023-11-19 08:07:11,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5492 conditions, 3953 events. 997/3953 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 36938 event pairs, 777 based on Foata normal form. 217/3416 useless extension candidates. Maximal degree in co-relation 4652. Up to 1436 conditions per place. [2023-11-19 08:07:11,197 INFO L140 encePairwiseOnDemand]: 1004/1030 looper letters, 35 selfloop transitions, 0 changer transitions 1/142 dead transitions. [2023-11-19 08:07:11,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 142 transitions, 374 flow [2023-11-19 08:07:11,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:07:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:07:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1092 transitions. [2023-11-19 08:07:11,223 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5300970873786408 [2023-11-19 08:07:11,225 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1092 transitions. [2023-11-19 08:07:11,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1092 transitions. [2023-11-19 08:07:11,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:11,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1092 transitions. [2023-11-19 08:07:11,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 546.0) internal successors, (1092), 2 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:11,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1030.0) internal successors, (3090), 3 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:11,257 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1030.0) internal successors, (3090), 3 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:11,259 INFO L175 Difference]: Start difference. First operand has 168 places, 168 transitions, 354 flow. Second operand 2 states and 1092 transitions. [2023-11-19 08:07:11,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 142 transitions, 374 flow [2023-11-19 08:07:11,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 362 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 08:07:11,276 INFO L231 Difference]: Finished difference. Result has 140 places, 141 transitions, 287 flow [2023-11-19 08:07:11,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=287, PETRI_PLACES=140, PETRI_TRANSITIONS=141} [2023-11-19 08:07:11,284 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -28 predicate places. [2023-11-19 08:07:11,284 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 141 transitions, 287 flow [2023-11-19 08:07:11,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 515.5) internal successors, (1031), 2 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:11,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:11,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:11,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:07:11,286 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:11,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1861646636, now seen corresponding path program 1 times [2023-11-19 08:07:11,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:11,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756445159] [2023-11-19 08:07:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:11,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:11,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756445159] [2023-11-19 08:07:11,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756445159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:11,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:11,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:11,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574359932] [2023-11-19 08:07:11,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:11,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:11,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 490 out of 1030 [2023-11-19 08:07:11,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 141 transitions, 287 flow. Second operand has 3 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:11,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:11,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 490 of 1030 [2023-11-19 08:07:11,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:12,296 INFO L124 PetriNetUnfolderBase]: 1513/5034 cut-off events. [2023-11-19 08:07:12,296 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-19 08:07:12,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7240 conditions, 5034 events. 1513/5034 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 46549 event pairs, 1221 based on Foata normal form. 0/4071 useless extension candidates. Maximal degree in co-relation 7237. Up to 2166 conditions per place. [2023-11-19 08:07:12,351 INFO L140 encePairwiseOnDemand]: 1027/1030 looper letters, 37 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2023-11-19 08:07:12,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 139 transitions, 359 flow [2023-11-19 08:07:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:07:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:07:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1510 transitions. [2023-11-19 08:07:12,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4886731391585761 [2023-11-19 08:07:12,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1510 transitions. [2023-11-19 08:07:12,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1510 transitions. [2023-11-19 08:07:12,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:12,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1510 transitions. [2023-11-19 08:07:12,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 503.3333333333333) internal successors, (1510), 3 states have internal predecessors, (1510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:12,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:12,376 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:12,376 INFO L175 Difference]: Start difference. First operand has 140 places, 141 transitions, 287 flow. Second operand 3 states and 1510 transitions. [2023-11-19 08:07:12,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 139 transitions, 359 flow [2023-11-19 08:07:12,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 139 transitions, 359 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:07:12,382 INFO L231 Difference]: Finished difference. Result has 139 places, 139 transitions, 285 flow [2023-11-19 08:07:12,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=139, PETRI_TRANSITIONS=139} [2023-11-19 08:07:12,383 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -29 predicate places. [2023-11-19 08:07:12,383 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 139 transitions, 285 flow [2023-11-19 08:07:12,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 493.0) internal successors, (1479), 3 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:12,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:12,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:12,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:07:12,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:12,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:12,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1958504817, now seen corresponding path program 1 times [2023-11-19 08:07:12,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:12,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688122266] [2023-11-19 08:07:12,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:12,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:12,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:12,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:12,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688122266] [2023-11-19 08:07:12,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688122266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:12,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:12,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:12,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220509850] [2023-11-19 08:07:12,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:12,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:12,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:12,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:12,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 1030 [2023-11-19 08:07:12,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:12,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:12,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 1030 [2023-11-19 08:07:12,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:13,992 INFO L124 PetriNetUnfolderBase]: 2961/10719 cut-off events. [2023-11-19 08:07:13,992 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-11-19 08:07:14,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15031 conditions, 10719 events. 2961/10719 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 117771 event pairs, 683 based on Foata normal form. 0/9395 useless extension candidates. Maximal degree in co-relation 15027. Up to 3560 conditions per place. [2023-11-19 08:07:14,080 INFO L140 encePairwiseOnDemand]: 1024/1030 looper letters, 60 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2023-11-19 08:07:14,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 158 transitions, 453 flow [2023-11-19 08:07:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:07:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:07:14,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1581 transitions. [2023-11-19 08:07:14,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5116504854368932 [2023-11-19 08:07:14,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1581 transitions. [2023-11-19 08:07:14,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1581 transitions. [2023-11-19 08:07:14,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:14,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1581 transitions. [2023-11-19 08:07:14,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 527.0) internal successors, (1581), 3 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:14,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:14,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:14,104 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 285 flow. Second operand 3 states and 1581 transitions. [2023-11-19 08:07:14,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 158 transitions, 453 flow [2023-11-19 08:07:14,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 158 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:07:14,109 INFO L231 Difference]: Finished difference. Result has 138 places, 139 transitions, 299 flow [2023-11-19 08:07:14,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=138, PETRI_TRANSITIONS=139} [2023-11-19 08:07:14,110 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -30 predicate places. [2023-11-19 08:07:14,110 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 139 transitions, 299 flow [2023-11-19 08:07:14,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 508.3333333333333) internal successors, (1525), 3 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:14,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:14,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:14,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:07:14,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:14,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1753104297, now seen corresponding path program 1 times [2023-11-19 08:07:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:14,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417533933] [2023-11-19 08:07:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:14,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:14,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:14,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:14,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417533933] [2023-11-19 08:07:14,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417533933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:14,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:14,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:14,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603094109] [2023-11-19 08:07:14,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:14,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:14,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:14,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 1030 [2023-11-19 08:07:14,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 139 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:14,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:14,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 1030 [2023-11-19 08:07:14,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:15,387 INFO L124 PetriNetUnfolderBase]: 2411/8818 cut-off events. [2023-11-19 08:07:15,388 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-11-19 08:07:15,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12631 conditions, 8818 events. 2411/8818 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 94036 event pairs, 1885 based on Foata normal form. 0/7386 useless extension candidates. Maximal degree in co-relation 12627. Up to 3312 conditions per place. [2023-11-19 08:07:15,472 INFO L140 encePairwiseOnDemand]: 1027/1030 looper letters, 36 selfloop transitions, 1 changer transitions 0/137 dead transitions. [2023-11-19 08:07:15,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 137 transitions, 369 flow [2023-11-19 08:07:15,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:07:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:07:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1545 transitions. [2023-11-19 08:07:15,478 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-19 08:07:15,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1545 transitions. [2023-11-19 08:07:15,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1545 transitions. [2023-11-19 08:07:15,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:15,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1545 transitions. [2023-11-19 08:07:15,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 515.0) internal successors, (1545), 3 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:15,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:15,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:15,596 INFO L175 Difference]: Start difference. First operand has 138 places, 139 transitions, 299 flow. Second operand 3 states and 1545 transitions. [2023-11-19 08:07:15,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 137 transitions, 369 flow [2023-11-19 08:07:15,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 137 transitions, 369 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:07:15,600 INFO L231 Difference]: Finished difference. Result has 138 places, 137 transitions, 297 flow [2023-11-19 08:07:15,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=138, PETRI_TRANSITIONS=137} [2023-11-19 08:07:15,601 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -30 predicate places. [2023-11-19 08:07:15,602 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 137 transitions, 297 flow [2023-11-19 08:07:15,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.6666666666667) internal successors, (1517), 3 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:15,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:15,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:15,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:07:15,604 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:15,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1106003117, now seen corresponding path program 1 times [2023-11-19 08:07:15,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:15,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297705810] [2023-11-19 08:07:15,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:15,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:15,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297705810] [2023-11-19 08:07:15,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297705810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:15,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:15,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:07:15,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61467380] [2023-11-19 08:07:15,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:15,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:07:15,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:15,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:07:15,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:07:15,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 505 out of 1030 [2023-11-19 08:07:15,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 137 transitions, 297 flow. Second operand has 3 states, 3 states have (on average 508.6666666666667) internal successors, (1526), 3 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:15,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:15,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 505 of 1030 [2023-11-19 08:07:15,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:16,904 INFO L124 PetriNetUnfolderBase]: 2630/8987 cut-off events. [2023-11-19 08:07:16,905 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2023-11-19 08:07:16,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13154 conditions, 8987 events. 2630/8987 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 95088 event pairs, 749 based on Foata normal form. 0/7960 useless extension candidates. Maximal degree in co-relation 13149. Up to 2787 conditions per place. [2023-11-19 08:07:17,000 INFO L140 encePairwiseOnDemand]: 1026/1030 looper letters, 54 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-11-19 08:07:17,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 154 transitions, 446 flow [2023-11-19 08:07:17,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:07:17,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:07:17,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1573 transitions. [2023-11-19 08:07:17,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5090614886731392 [2023-11-19 08:07:17,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1573 transitions. [2023-11-19 08:07:17,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1573 transitions. [2023-11-19 08:07:17,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:17,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1573 transitions. [2023-11-19 08:07:17,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 524.3333333333334) internal successors, (1573), 3 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:17,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:17,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1030.0) internal successors, (4120), 4 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:17,028 INFO L175 Difference]: Start difference. First operand has 138 places, 137 transitions, 297 flow. Second operand 3 states and 1573 transitions. [2023-11-19 08:07:17,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 154 transitions, 446 flow [2023-11-19 08:07:17,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 154 transitions, 445 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:07:17,034 INFO L231 Difference]: Finished difference. Result has 138 places, 137 transitions, 306 flow [2023-11-19 08:07:17,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=138, PETRI_TRANSITIONS=137} [2023-11-19 08:07:17,036 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -30 predicate places. [2023-11-19 08:07:17,036 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 137 transitions, 306 flow [2023-11-19 08:07:17,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 508.6666666666667) internal successors, (1526), 3 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:17,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:17,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:17,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:07:17,039 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:17,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:17,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1238594903, now seen corresponding path program 1 times [2023-11-19 08:07:17,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:17,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437608164] [2023-11-19 08:07:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:17,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:17,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:17,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437608164] [2023-11-19 08:07:17,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437608164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:17,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:17,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:07:17,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665548935] [2023-11-19 08:07:17,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:17,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:07:17,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:17,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:07:17,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:07:18,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 1030 [2023-11-19 08:07:18,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 137 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 479.6666666666667) internal successors, (2878), 6 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:18,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:18,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 1030 [2023-11-19 08:07:18,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:25,698 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1448] L59-18-->L59-20: Formula: (= |v_#memory_int_48| (store |v_#memory_int_49| v_~C2~0.base_28 (store (select |v_#memory_int_49| v_~C2~0.base_28) (+ v_~C2~0.offset_28 (* v_thread2Thread1of1ForFork0_~i~1_69 4)) (+ |v_thread2Thread1of1ForFork0_#t~mem7_9| |v_thread2Thread1of1ForFork0_#t~mem6_9|)))) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_69, thread2Thread1of1ForFork0_#t~mem6=|v_thread2Thread1of1ForFork0_#t~mem6_9|, ~C2~0.offset=v_~C2~0.offset_28, thread2Thread1of1ForFork0_#t~mem7=|v_thread2Thread1of1ForFork0_#t~mem7_9|, ~C2~0.base=v_~C2~0.base_28, #memory_int=|v_#memory_int_49|} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_69, thread2Thread1of1ForFork0_#t~mem6=|v_thread2Thread1of1ForFork0_#t~mem6_9|, ~C2~0.offset=v_~C2~0.offset_28, thread2Thread1of1ForFork0_#t~mem7=|v_thread2Thread1of1ForFork0_#t~mem7_9|, ~C2~0.base=v_~C2~0.base_28, #memory_int=|v_#memory_int_48|, thread2Thread1of1ForFork0_#t~nondet8=|v_thread2Thread1of1ForFork0_#t~nondet8_21|} AuxVars[] AssignedVars[#memory_int, thread2Thread1of1ForFork0_#t~nondet8][167], [526#true, Black: 542#true, 513#L51-3true, 132#L66-10true, 540#(= |#race~M~0| 0), 347#L59-20true, 535#(= |#race~A~0| 0), 544#(= |#race~C2~0| 0), 552#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 533#true, 352#L90-6true, 531#(= |#race~N~0| 0)]) [2023-11-19 08:07:25,704 INFO L294 olderBase$Statistics]: this new event has 96 ancestors and is cut-off event [2023-11-19 08:07:25,704 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2023-11-19 08:07:25,704 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-19 08:07:25,705 INFO L297 olderBase$Statistics]: existing Event has 70 ancestors and is cut-off event [2023-11-19 08:07:25,831 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1448] L59-18-->L59-20: Formula: (= |v_#memory_int_48| (store |v_#memory_int_49| v_~C2~0.base_28 (store (select |v_#memory_int_49| v_~C2~0.base_28) (+ v_~C2~0.offset_28 (* v_thread2Thread1of1ForFork0_~i~1_69 4)) (+ |v_thread2Thread1of1ForFork0_#t~mem7_9| |v_thread2Thread1of1ForFork0_#t~mem6_9|)))) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_69, thread2Thread1of1ForFork0_#t~mem6=|v_thread2Thread1of1ForFork0_#t~mem6_9|, ~C2~0.offset=v_~C2~0.offset_28, thread2Thread1of1ForFork0_#t~mem7=|v_thread2Thread1of1ForFork0_#t~mem7_9|, ~C2~0.base=v_~C2~0.base_28, #memory_int=|v_#memory_int_49|} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_69, thread2Thread1of1ForFork0_#t~mem6=|v_thread2Thread1of1ForFork0_#t~mem6_9|, ~C2~0.offset=v_~C2~0.offset_28, thread2Thread1of1ForFork0_#t~mem7=|v_thread2Thread1of1ForFork0_#t~mem7_9|, ~C2~0.base=v_~C2~0.base_28, #memory_int=|v_#memory_int_48|, thread2Thread1of1ForFork0_#t~nondet8=|v_thread2Thread1of1ForFork0_#t~nondet8_21|} AuxVars[] AssignedVars[#memory_int, thread2Thread1of1ForFork0_#t~nondet8][167], [526#true, Black: 542#true, 513#L51-3true, 540#(= |#race~M~0| 0), 347#L59-20true, 535#(= |#race~A~0| 0), 544#(= |#race~C2~0| 0), 73#thread3EXITtrue, 552#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 533#true, 352#L90-6true, 531#(= |#race~N~0| 0)]) [2023-11-19 08:07:25,831 INFO L294 olderBase$Statistics]: this new event has 98 ancestors and is cut-off event [2023-11-19 08:07:25,831 INFO L297 olderBase$Statistics]: existing Event has 70 ancestors and is cut-off event [2023-11-19 08:07:25,831 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-19 08:07:25,831 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2023-11-19 08:07:25,889 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1448] L59-18-->L59-20: Formula: (= |v_#memory_int_48| (store |v_#memory_int_49| v_~C2~0.base_28 (store (select |v_#memory_int_49| v_~C2~0.base_28) (+ v_~C2~0.offset_28 (* v_thread2Thread1of1ForFork0_~i~1_69 4)) (+ |v_thread2Thread1of1ForFork0_#t~mem7_9| |v_thread2Thread1of1ForFork0_#t~mem6_9|)))) InVars {thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_69, thread2Thread1of1ForFork0_#t~mem6=|v_thread2Thread1of1ForFork0_#t~mem6_9|, ~C2~0.offset=v_~C2~0.offset_28, thread2Thread1of1ForFork0_#t~mem7=|v_thread2Thread1of1ForFork0_#t~mem7_9|, ~C2~0.base=v_~C2~0.base_28, #memory_int=|v_#memory_int_49|} OutVars{thread2Thread1of1ForFork0_~i~1=v_thread2Thread1of1ForFork0_~i~1_69, thread2Thread1of1ForFork0_#t~mem6=|v_thread2Thread1of1ForFork0_#t~mem6_9|, ~C2~0.offset=v_~C2~0.offset_28, thread2Thread1of1ForFork0_#t~mem7=|v_thread2Thread1of1ForFork0_#t~mem7_9|, ~C2~0.base=v_~C2~0.base_28, #memory_int=|v_#memory_int_48|, thread2Thread1of1ForFork0_#t~nondet8=|v_thread2Thread1of1ForFork0_#t~nondet8_21|} AuxVars[] AssignedVars[#memory_int, thread2Thread1of1ForFork0_#t~nondet8][167], [526#true, Black: 542#true, 513#L51-3true, 347#L59-20true, 540#(= |#race~M~0| 0), 85#L67-1true, 535#(= |#race~A~0| 0), 544#(= |#race~C2~0| 0), 552#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 533#true, 352#L90-6true, 531#(= |#race~N~0| 0)]) [2023-11-19 08:07:25,889 INFO L294 olderBase$Statistics]: this new event has 99 ancestors and is cut-off event [2023-11-19 08:07:25,889 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2023-11-19 08:07:25,889 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2023-11-19 08:07:25,890 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-19 08:07:26,708 INFO L124 PetriNetUnfolderBase]: 42386/71570 cut-off events. [2023-11-19 08:07:26,708 INFO L125 PetriNetUnfolderBase]: For 3889/3905 co-relation queries the response was YES. [2023-11-19 08:07:26,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134943 conditions, 71570 events. 42386/71570 cut-off events. For 3889/3905 co-relation queries the response was YES. Maximal size of possible extension queue 2294. Compared 643101 event pairs, 14485 based on Foata normal form. 5/65105 useless extension candidates. Maximal degree in co-relation 134938. Up to 39377 conditions per place. [2023-11-19 08:07:27,386 INFO L140 encePairwiseOnDemand]: 1012/1030 looper letters, 130 selfloop transitions, 53 changer transitions 0/265 dead transitions. [2023-11-19 08:07:27,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 265 transitions, 970 flow [2023-11-19 08:07:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:07:27,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:07:27,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3036 transitions. [2023-11-19 08:07:27,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4912621359223301 [2023-11-19 08:07:27,399 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3036 transitions. [2023-11-19 08:07:27,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3036 transitions. [2023-11-19 08:07:27,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:27,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3036 transitions. [2023-11-19 08:07:27,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 506.0) internal successors, (3036), 6 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:27,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1030.0) internal successors, (7210), 7 states have internal predecessors, (7210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:27,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1030.0) internal successors, (7210), 7 states have internal predecessors, (7210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:27,425 INFO L175 Difference]: Start difference. First operand has 138 places, 137 transitions, 306 flow. Second operand 6 states and 3036 transitions. [2023-11-19 08:07:27,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 265 transitions, 970 flow [2023-11-19 08:07:27,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 265 transitions, 970 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:07:27,436 INFO L231 Difference]: Finished difference. Result has 148 places, 189 transitions, 656 flow [2023-11-19 08:07:27,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=148, PETRI_TRANSITIONS=189} [2023-11-19 08:07:27,439 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -20 predicate places. [2023-11-19 08:07:27,442 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 189 transitions, 656 flow [2023-11-19 08:07:27,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 479.6666666666667) internal successors, (2878), 6 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:27,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:27,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:07:27,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:07:27,465 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:27,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:27,466 INFO L85 PathProgramCache]: Analyzing trace with hash -802093709, now seen corresponding path program 1 times [2023-11-19 08:07:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354368234] [2023-11-19 08:07:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:27,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:27,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:27,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:27,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354368234] [2023-11-19 08:07:27,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354368234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:27,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:27,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:07:27,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044537786] [2023-11-19 08:07:27,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:27,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:07:27,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:27,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:07:27,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:07:27,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 1030 [2023-11-19 08:07:27,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 189 transitions, 656 flow. Second operand has 5 states, 5 states have (on average 478.6) internal successors, (2393), 5 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:27,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:27,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 1030 [2023-11-19 08:07:27,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:07:34,673 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1331] L67-20-->L67-21: Formula: (= (store |v_#race_82| v_~C2~0.base_9 (store (select |v_#race_82| v_~C2~0.base_9) (+ v_~C2~0.offset_9 (* v_thread3Thread1of1ForFork1_~i~2_39 4)) |v_thread3Thread1of1ForFork1_#t~nondet12_3|)) |v_#race_81|) InVars {#race=|v_#race_82|, thread3Thread1of1ForFork1_~i~2=v_thread3Thread1of1ForFork1_~i~2_39, ~C2~0.offset=v_~C2~0.offset_9, thread3Thread1of1ForFork1_#t~nondet12=|v_thread3Thread1of1ForFork1_#t~nondet12_3|, ~C2~0.base=v_~C2~0.base_9} OutVars{#race=|v_#race_81|, thread3Thread1of1ForFork1_~i~2=v_thread3Thread1of1ForFork1_~i~2_39, ~C2~0.offset=v_~C2~0.offset_9, thread3Thread1of1ForFork1_#t~nondet12=|v_thread3Thread1of1ForFork1_#t~nondet12_3|, ~C2~0.base=v_~C2~0.base_9} AuxVars[] AssignedVars[#race][179], [Black: 542#true, 540#(= |#race~M~0| 0), 314#L67-21true, 535#(= |#race~A~0| 0), 274#L51-24true, Black: 551#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 352#L90-6true, Black: 552#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 559#true, Black: 549#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), 499#L58-8true, Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 526#true, 544#(= |#race~C2~0| 0), Black: 533#true, 547#true, 531#(= |#race~N~0| 0)]) [2023-11-19 08:07:34,673 INFO L294 olderBase$Statistics]: this new event has 95 ancestors and is cut-off event [2023-11-19 08:07:34,673 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-19 08:07:34,673 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2023-11-19 08:07:34,673 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-19 08:07:34,849 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1331] L67-20-->L67-21: Formula: (= (store |v_#race_82| v_~C2~0.base_9 (store (select |v_#race_82| v_~C2~0.base_9) (+ v_~C2~0.offset_9 (* v_thread3Thread1of1ForFork1_~i~2_39 4)) |v_thread3Thread1of1ForFork1_#t~nondet12_3|)) |v_#race_81|) InVars {#race=|v_#race_82|, thread3Thread1of1ForFork1_~i~2=v_thread3Thread1of1ForFork1_~i~2_39, ~C2~0.offset=v_~C2~0.offset_9, thread3Thread1of1ForFork1_#t~nondet12=|v_thread3Thread1of1ForFork1_#t~nondet12_3|, ~C2~0.base=v_~C2~0.base_9} OutVars{#race=|v_#race_81|, thread3Thread1of1ForFork1_~i~2=v_thread3Thread1of1ForFork1_~i~2_39, ~C2~0.offset=v_~C2~0.offset_9, thread3Thread1of1ForFork1_#t~nondet12=|v_thread3Thread1of1ForFork1_#t~nondet12_3|, ~C2~0.base=v_~C2~0.base_9} AuxVars[] AssignedVars[#race][179], [Black: 542#true, 540#(= |#race~M~0| 0), 314#L67-21true, 535#(= |#race~A~0| 0), 274#L51-24true, Black: 551#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 352#L90-6true, Black: 552#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 559#true, Black: 549#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 526#true, 544#(= |#race~C2~0| 0), Black: 533#true, 547#true, 531#(= |#race~N~0| 0), 307#thread2EXITtrue]) [2023-11-19 08:07:34,849 INFO L294 olderBase$Statistics]: this new event has 97 ancestors and is cut-off event [2023-11-19 08:07:34,849 INFO L297 olderBase$Statistics]: existing Event has 97 ancestors and is cut-off event [2023-11-19 08:07:34,849 INFO L297 olderBase$Statistics]: existing Event has 95 ancestors and is cut-off event [2023-11-19 08:07:34,849 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2023-11-19 08:07:34,913 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1331] L67-20-->L67-21: Formula: (= (store |v_#race_82| v_~C2~0.base_9 (store (select |v_#race_82| v_~C2~0.base_9) (+ v_~C2~0.offset_9 (* v_thread3Thread1of1ForFork1_~i~2_39 4)) |v_thread3Thread1of1ForFork1_#t~nondet12_3|)) |v_#race_81|) InVars {#race=|v_#race_82|, thread3Thread1of1ForFork1_~i~2=v_thread3Thread1of1ForFork1_~i~2_39, ~C2~0.offset=v_~C2~0.offset_9, thread3Thread1of1ForFork1_#t~nondet12=|v_thread3Thread1of1ForFork1_#t~nondet12_3|, ~C2~0.base=v_~C2~0.base_9} OutVars{#race=|v_#race_81|, thread3Thread1of1ForFork1_~i~2=v_thread3Thread1of1ForFork1_~i~2_39, ~C2~0.offset=v_~C2~0.offset_9, thread3Thread1of1ForFork1_#t~nondet12=|v_thread3Thread1of1ForFork1_#t~nondet12_3|, ~C2~0.base=v_~C2~0.base_9} AuxVars[] AssignedVars[#race][179], [Black: 542#true, 540#(= |#race~M~0| 0), 314#L67-21true, 535#(= |#race~A~0| 0), 399#L59-1true, 274#L51-24true, 352#L90-6true, Black: 551#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 552#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 559#true, Black: 549#(= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0), Black: 550#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 526#true, 544#(= |#race~C2~0| 0), Black: 533#true, 547#true, 531#(= |#race~N~0| 0)]) [2023-11-19 08:07:34,913 INFO L294 olderBase$Statistics]: this new event has 98 ancestors and is cut-off event [2023-11-19 08:07:34,913 INFO L297 olderBase$Statistics]: existing Event has 72 ancestors and is cut-off event [2023-11-19 08:07:34,914 INFO L297 olderBase$Statistics]: existing Event has 96 ancestors and is cut-off event [2023-11-19 08:07:34,914 INFO L297 olderBase$Statistics]: existing Event has 98 ancestors and is cut-off event [2023-11-19 08:07:35,164 INFO L124 PetriNetUnfolderBase]: 22321/58957 cut-off events. [2023-11-19 08:07:35,164 INFO L125 PetriNetUnfolderBase]: For 8433/17159 co-relation queries the response was YES. [2023-11-19 08:07:35,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109811 conditions, 58957 events. 22321/58957 cut-off events. For 8433/17159 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 699835 event pairs, 9121 based on Foata normal form. 0/52965 useless extension candidates. Maximal degree in co-relation 109801. Up to 15215 conditions per place. [2023-11-19 08:07:36,002 INFO L140 encePairwiseOnDemand]: 1018/1030 looper letters, 79 selfloop transitions, 15 changer transitions 0/246 dead transitions. [2023-11-19 08:07:36,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 246 transitions, 987 flow [2023-11-19 08:07:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:07:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:07:36,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2951 transitions. [2023-11-19 08:07:36,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47750809061488675 [2023-11-19 08:07:36,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2951 transitions. [2023-11-19 08:07:36,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2951 transitions. [2023-11-19 08:07:36,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:07:36,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2951 transitions. [2023-11-19 08:07:36,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 491.8333333333333) internal successors, (2951), 6 states have internal predecessors, (2951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:36,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1030.0) internal successors, (7210), 7 states have internal predecessors, (7210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:36,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1030.0) internal successors, (7210), 7 states have internal predecessors, (7210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:36,058 INFO L175 Difference]: Start difference. First operand has 148 places, 189 transitions, 656 flow. Second operand 6 states and 2951 transitions. [2023-11-19 08:07:36,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 246 transitions, 987 flow [2023-11-19 08:07:36,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 246 transitions, 987 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:07:36,528 INFO L231 Difference]: Finished difference. Result has 156 places, 202 transitions, 752 flow [2023-11-19 08:07:36,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1030, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=752, PETRI_PLACES=156, PETRI_TRANSITIONS=202} [2023-11-19 08:07:36,529 INFO L281 CegarLoopForPetriNet]: 168 programPoint places, -12 predicate places. [2023-11-19 08:07:36,529 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 202 transitions, 752 flow [2023-11-19 08:07:36,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 478.6) internal successors, (2393), 5 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:36,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:07:36,531 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] [2023-11-19 08:07:36,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:07:36,531 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-19 08:07:36,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:07:36,532 INFO L85 PathProgramCache]: Analyzing trace with hash 602372089, now seen corresponding path program 1 times [2023-11-19 08:07:36,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:07:36,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197894914] [2023-11-19 08:07:36,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:07:36,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:07:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:07:36,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:07:36,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:07:36,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197894914] [2023-11-19 08:07:36,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197894914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:07:36,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:07:36,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:07:36,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377683956] [2023-11-19 08:07:36,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:07:36,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:07:36,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:07:36,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:07:36,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:07:37,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 483 out of 1030 [2023-11-19 08:07:37,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 202 transitions, 752 flow. Second operand has 6 states, 6 states have (on average 484.6666666666667) internal successors, (2908), 6 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:07:37,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:07:37,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 483 of 1030 [2023-11-19 08:07:37,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand