./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme --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 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:58,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:58,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:45:58,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:58,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:58,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:58,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:58,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:58,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:58,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:58,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:58,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:58,790 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:58,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:58,791 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:58,792 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:58,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:58,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:58,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:58,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:58,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:58,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:58,796 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:45:58,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:58,797 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:58,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:58,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:58,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:58,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:58,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:58,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:58,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:58,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:58,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:58,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:58,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:45:58,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:58,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:58,805 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:58,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:58,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:58,807 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_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 [2023-11-26 10:45:59,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:59,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:59,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:59,126 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:59,126 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:59,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-26 10:46:02,372 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:02,576 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:02,576 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-26 10:46:02,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/data/550b62819/243df055db1d4137abf81ac0f2f22395/FLAGd9ab154c0 [2023-11-26 10:46:02,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/data/550b62819/243df055db1d4137abf81ac0f2f22395 [2023-11-26 10:46:02,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:02,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:02,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:02,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:02,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:02,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:02" (1/1) ... [2023-11-26 10:46:02,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6299bfae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:02, skipping insertion in model container [2023-11-26 10:46:02,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:02" (1/1) ... [2023-11-26 10:46:02,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:03,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:03,043 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:03,120 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:03,136 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:03,136 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 10:46:03,143 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:03,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03 WrapperNode [2023-11-26 10:46:03,143 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:03,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:03,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:03,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:03,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,253 INFO L138 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 19, calls inlined = 27, statements flattened = 679 [2023-11-26 10:46:03,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:03,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:03,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:03,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:03,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:03,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:03,374 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:03,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:03,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (1/1) ... [2023-11-26 10:46:03,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:03,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:03,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c6e937c-0539-4e51-8456-64cc3a37a7c5/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 10:46:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:46:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:46:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:46:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 10:46:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:46:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:46:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:46:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:46:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 10:46:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 10:46:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:46:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-26 10:46:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-26 10:46:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:46:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:03,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:46:03,483 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:46:03,686 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:03,689 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:04,978 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:05,657 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:05,657 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-26 10:46:05,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:05 BoogieIcfgContainer [2023-11-26 10:46:05,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:05,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:05,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:05,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:05,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:02" (1/3) ... [2023-11-26 10:46:05,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c44038b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:05, skipping insertion in model container [2023-11-26 10:46:05,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:03" (2/3) ... [2023-11-26 10:46:05,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c44038b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:05, skipping insertion in model container [2023-11-26 10:46:05,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:05" (3/3) ... [2023-11-26 10:46:05,677 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2023-11-26 10:46:05,692 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:46:05,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:05,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2023-11-26 10:46:05,705 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:46:05,957 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 10:46:06,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 658 transitions, 1337 flow [2023-11-26 10:46:06,421 INFO L124 PetriNetUnfolderBase]: 36/655 cut-off events. [2023-11-26 10:46:06,421 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:46:06,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 655 events. 36/655 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2052 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 501. Up to 2 conditions per place. [2023-11-26 10:46:06,448 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 658 transitions, 1337 flow [2023-11-26 10:46:06,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 607 places, 632 transitions, 1282 flow [2023-11-26 10:46:06,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:06,496 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;@2b0dbc3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:06,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 151 error locations. [2023-11-26 10:46:06,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:46:06,502 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-26 10:46:06,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:46:06,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:06,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:06,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-26 10:46:06,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash 175564931, now seen corresponding path program 1 times [2023-11-26 10:46:06,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:06,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855950164] [2023-11-26 10:46:06,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:06,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:06,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:06,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855950164] [2023-11-26 10:46:06,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855950164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:06,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:06,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:06,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189921164] [2023-11-26 10:46:06,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:06,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:06,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:06,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:06,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 658 [2023-11-26 10:46:06,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 632 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 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) [2023-11-26 10:46:06,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:06,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 658 [2023-11-26 10:46:06,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:08,112 INFO L124 PetriNetUnfolderBase]: 109/1764 cut-off events. [2023-11-26 10:46:08,112 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-26 10:46:08,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1893 conditions, 1764 events. 109/1764 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11517 event pairs, 38 based on Foata normal form. 60/1508 useless extension candidates. Maximal degree in co-relation 1078. Up to 92 conditions per place. [2023-11-26 10:46:08,150 INFO L140 encePairwiseOnDemand]: 610/658 looper letters, 16 selfloop transitions, 2 changer transitions 8/586 dead transitions. [2023-11-26 10:46:08,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 586 transitions, 1226 flow [2023-11-26 10:46:08,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:08,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1837 transitions. [2023-11-26 10:46:08,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.930597771023303 [2023-11-26 10:46:08,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1837 transitions. [2023-11-26 10:46:08,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1837 transitions. [2023-11-26 10:46:08,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:08,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1837 transitions. [2023-11-26 10:46:08,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.3333333333334) internal successors, (1837), 3 states have internal predecessors, (1837), 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) [2023-11-26 10:46:08,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-26 10:46:08,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-26 10:46:08,212 INFO L175 Difference]: Start difference. First operand has 607 places, 632 transitions, 1282 flow. Second operand 3 states and 1837 transitions. [2023-11-26 10:46:08,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 586 transitions, 1226 flow [2023-11-26 10:46:08,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 586 transitions, 1214 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 10:46:08,242 INFO L231 Difference]: Finished difference. Result has 575 places, 578 transitions, 1166 flow [2023-11-26 10:46:08,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1178, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=584, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1166, PETRI_PLACES=575, PETRI_TRANSITIONS=578} [2023-11-26 10:46:08,250 INFO L281 CegarLoopForPetriNet]: 607 programPoint places, -32 predicate places. [2023-11-26 10:46:08,251 INFO L495 AbstractCegarLoop]: Abstraction has has 575 places, 578 transitions, 1166 flow [2023-11-26 10:46:08,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 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) [2023-11-26 10:46:08,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:08,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:08,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:46:08,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-26 10:46:08,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:08,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1136976156, now seen corresponding path program 1 times [2023-11-26 10:46:08,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:08,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775422611] [2023-11-26 10:46:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:08,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:08,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:08,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775422611] [2023-11-26 10:46:08,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775422611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:08,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:08,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:08,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097437886] [2023-11-26 10:46:08,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:08,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:08,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:08,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:08,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:08,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 658 [2023-11-26 10:46:08,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 575 places, 578 transitions, 1166 flow. Second operand has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 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) [2023-11-26 10:46:08,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:08,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 658 [2023-11-26 10:46:08,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:09,481 INFO L124 PetriNetUnfolderBase]: 90/1466 cut-off events. [2023-11-26 10:46:09,482 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2023-11-26 10:46:09,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 1466 events. 90/1466 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8559 event pairs, 34 based on Foata normal form. 0/1219 useless extension candidates. Maximal degree in co-relation 1535. Up to 87 conditions per place. [2023-11-26 10:46:09,513 INFO L140 encePairwiseOnDemand]: 655/658 looper letters, 17 selfloop transitions, 2 changer transitions 0/577 dead transitions. [2023-11-26 10:46:09,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 577 transitions, 1202 flow [2023-11-26 10:46:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:09,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1790 transitions. [2023-11-26 10:46:09,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9067882472137792 [2023-11-26 10:46:09,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1790 transitions. [2023-11-26 10:46:09,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1790 transitions. [2023-11-26 10:46:09,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:09,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1790 transitions. [2023-11-26 10:46:09,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 596.6666666666666) internal successors, (1790), 3 states have internal predecessors, (1790), 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) [2023-11-26 10:46:09,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-26 10:46:09,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-26 10:46:09,545 INFO L175 Difference]: Start difference. First operand has 575 places, 578 transitions, 1166 flow. Second operand 3 states and 1790 transitions. [2023-11-26 10:46:09,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 577 transitions, 1202 flow [2023-11-26 10:46:09,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 566 places, 577 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:09,569 INFO L231 Difference]: Finished difference. Result has 566 places, 577 transitions, 1164 flow [2023-11-26 10:46:09,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1164, PETRI_PLACES=566, PETRI_TRANSITIONS=577} [2023-11-26 10:46:09,572 INFO L281 CegarLoopForPetriNet]: 607 programPoint places, -41 predicate places. [2023-11-26 10:46:09,572 INFO L495 AbstractCegarLoop]: Abstraction has has 566 places, 577 transitions, 1164 flow [2023-11-26 10:46:09,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 3 states have internal predecessors, (1774), 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) [2023-11-26 10:46:09,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:09,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:09,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:46:09,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-26 10:46:09,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:09,584 INFO L85 PathProgramCache]: Analyzing trace with hash -592773028, now seen corresponding path program 1 times [2023-11-26 10:46:09,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:09,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171004730] [2023-11-26 10:46:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:09,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:09,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:09,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171004730] [2023-11-26 10:46:09,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171004730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:09,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:09,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:09,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82168546] [2023-11-26 10:46:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:09,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:09,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:09,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:09,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 658 [2023-11-26 10:46:09,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 577 transitions, 1164 flow. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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) [2023-11-26 10:46:09,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:09,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 658 [2023-11-26 10:46:09,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:10,537 INFO L124 PetriNetUnfolderBase]: 138/1891 cut-off events. [2023-11-26 10:46:10,537 INFO L125 PetriNetUnfolderBase]: For 14/20 co-relation queries the response was YES. [2023-11-26 10:46:10,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 1891 events. 138/1891 cut-off events. For 14/20 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12828 event pairs, 59 based on Foata normal form. 0/1569 useless extension candidates. Maximal degree in co-relation 2006. Up to 138 conditions per place. [2023-11-26 10:46:10,581 INFO L140 encePairwiseOnDemand]: 652/658 looper letters, 19 selfloop transitions, 1 changer transitions 0/572 dead transitions. [2023-11-26 10:46:10,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 572 transitions, 1194 flow [2023-11-26 10:46:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:10,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2023-11-26 10:46:10,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.903242147922999 [2023-11-26 10:46:10,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1783 transitions. [2023-11-26 10:46:10,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1783 transitions. [2023-11-26 10:46:10,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:10,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1783 transitions. [2023-11-26 10:46:10,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 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) [2023-11-26 10:46:10,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-26 10:46:10,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 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) [2023-11-26 10:46:10,605 INFO L175 Difference]: Start difference. First operand has 566 places, 577 transitions, 1164 flow. Second operand 3 states and 1783 transitions. [2023-11-26 10:46:10,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 572 transitions, 1194 flow [2023-11-26 10:46:10,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 572 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:10,623 INFO L231 Difference]: Finished difference. Result has 561 places, 572 transitions, 1152 flow [2023-11-26 10:46:10,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1152, PETRI_PLACES=561, PETRI_TRANSITIONS=572} [2023-11-26 10:46:10,626 INFO L281 CegarLoopForPetriNet]: 607 programPoint places, -46 predicate places. [2023-11-26 10:46:10,626 INFO L495 AbstractCegarLoop]: Abstraction has has 561 places, 572 transitions, 1152 flow [2023-11-26 10:46:10,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 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) [2023-11-26 10:46:10,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:10,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:10,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:46:10,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 147 more)] === [2023-11-26 10:46:10,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash -144756380, now seen corresponding path program 1 times [2023-11-26 10:46:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942124557] [2023-11-26 10:46:10,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:10,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:11,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942124557] [2023-11-26 10:46:11,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942124557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:11,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:11,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:11,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615626371] [2023-11-26 10:46:11,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:11,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:11,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:11,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:11,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:12,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 496 out of 658 [2023-11-26 10:46:12,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 572 transitions, 1152 flow. Second operand has 6 states, 6 states have (on average 497.5) internal successors, (2985), 6 states have internal predecessors, (2985), 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) [2023-11-26 10:46:12,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:12,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 496 of 658 [2023-11-26 10:46:12,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand