./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/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_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:58,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:58,663 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:08:58,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:58,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:58,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:58,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:58,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:58,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:58,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:58,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:58,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:58,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:58,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:58,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:58,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:58,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:58,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:58,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:58,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:58,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:58,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:58,748 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:08:58,748 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:08:58,749 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:58,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:58,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:58,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:58,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:58,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:58,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:58,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:58,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:58,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:58,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:58,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:58,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:58,756 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:58,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:58,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:58,757 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:58,757 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_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fdb5189ea0a06d32886b44c2108d225ef2901fa5113fdc3856a252d0f653190 [2023-11-12 02:08:59,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:59,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:59,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:59,137 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:59,138 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:59,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-12 02:09:02,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:09:02,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:09:02,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/sv-benchmarks/c/weaver/popl20-bad-dot-product-alt.wvr.c [2023-11-12 02:09:02,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/data/b8807383e/d6470329dabd4832a17011a2070b2d00/FLAG9980fe22c [2023-11-12 02:09:02,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/data/b8807383e/d6470329dabd4832a17011a2070b2d00 [2023-11-12 02:09:02,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:09:02,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:09:02,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:02,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:09:02,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:09:02,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:02,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4584c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02, skipping insertion in model container [2023-11-12 02:09:02,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:02,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:09:02,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:02,833 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:09:02,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:09:02,942 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:02,943 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:09:02,950 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:09:02,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02 WrapperNode [2023-11-12 02:09:02,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:09:02,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:02,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:09:02,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:09:02,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:02,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,071 INFO L138 Inliner]: procedures = 28, calls = 75, calls flagged for inlining = 19, calls inlined = 27, statements flattened = 679 [2023-11-12 02:09:03,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:09:03,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:09:03,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:09:03,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:09:03,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:09:03,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:09:03,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:09:03,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:09:03,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (1/1) ... [2023-11-12 02:09:03,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:09:03,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:09:03,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:09:03,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8ac06e7-2682-4c70-a759-0fbb41f81492/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:09:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:09:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:09:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:09:03,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:09:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:09:03,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:09:03,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:09:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:09:03,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:09:03,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:09:03,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:09:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:09:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:09:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:09:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:09:03,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:09:03,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:09:03,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:09:03,288 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:09:03,500 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:09:03,502 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:09:05,022 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:09:05,547 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:09:05,547 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-12 02:09:05,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:05 BoogieIcfgContainer [2023-11-12 02:09:05,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:09:05,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:09:05,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:09:05,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:09:05,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:09:02" (1/3) ... [2023-11-12 02:09:05,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adc92a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:05, skipping insertion in model container [2023-11-12 02:09:05,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:09:02" (2/3) ... [2023-11-12 02:09:05,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adc92a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:09:05, skipping insertion in model container [2023-11-12 02:09:05,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:09:05" (3/3) ... [2023-11-12 02:09:05,567 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product-alt.wvr.c [2023-11-12 02:09:05,579 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:09:05,591 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:09:05,591 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 87 error locations. [2023-11-12 02:09:05,592 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:09:05,851 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 02:09:05,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 658 transitions, 1337 flow [2023-11-12 02:09:06,390 INFO L124 PetriNetUnfolderBase]: 36/655 cut-off events. [2023-11-12 02:09:06,390 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:09:06,413 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. [2023-11-12 02:09:06,414 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 658 transitions, 1337 flow [2023-11-12 02:09:06,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 607 places, 632 transitions, 1282 flow [2023-11-12 02:09:06,444 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:09:06,461 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 607 places, 632 transitions, 1282 flow [2023-11-12 02:09:06,466 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 607 places, 632 transitions, 1282 flow [2023-11-12 02:09:06,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 607 places, 632 transitions, 1282 flow [2023-11-12 02:09:06,723 INFO L124 PetriNetUnfolderBase]: 35/632 cut-off events. [2023-11-12 02:09:06,723 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:09:06,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 632 events. 35/632 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2061 event pairs, 0 based on Foata normal form. 0/511 useless extension candidates. Maximal degree in co-relation 501. Up to 2 conditions per place. [2023-11-12 02:09:06,779 INFO L119 LiptonReduction]: Number of co-enabled transitions 71748