./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/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_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/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_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:02,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:02,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:07:02,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:02,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:02,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:02,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:02,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:02,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:07:02,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:07:02,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:02,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:02,377 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:02,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:02,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:07:02,380 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:07:02,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:02,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:07:02,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:02,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:07:02,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:07:02,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:07:02,383 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:07:02,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:07:02,384 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:07:02,384 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:07:02,384 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:02,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:02,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:02,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:07:02,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:02,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:02,388 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:07:02,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:07:02,388 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:07:02,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:07:02,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:07:02,389 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:07:02,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:07:02,390 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:07:02,390 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:07:02,390 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_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2023-11-12 02:07:02,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:02,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:02,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:02,733 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:02,734 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:02,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-12 02:07:05,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:06,170 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:06,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2023-11-12 02:07:06,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/data/debd04abd/db947352813d4e258459c626bafc1953/FLAGb50c124a8 [2023-11-12 02:07:06,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/data/debd04abd/db947352813d4e258459c626bafc1953 [2023-11-12 02:07:06,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:06,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:06,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:06,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:06,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:06,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a375ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06, skipping insertion in model container [2023-11-12 02:07:06,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,262 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:06,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:06,536 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:07:06,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:06,648 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:06,650 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:06,659 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:07:06,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06 WrapperNode [2023-11-12 02:07:06,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:06,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:06,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:07:06,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:07:06,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,768 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 1033 [2023-11-12 02:07:06,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:06,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:07:06,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:07:06,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:07:06,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,848 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:07:06,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:07:06,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:07:06,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:07:06,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (1/1) ... [2023-11-12 02:07:06,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:06,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:06,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:06,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2d59fb8-59ba-481b-bcc0-e005b86c92b1/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:07:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:07:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:07:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:07:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:07:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:07:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:07:06,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:07:06,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:07:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:07:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:07:06,997 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:07:06,997 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:07:06,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:07:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:07:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:07:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:07:07,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:07:07,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:07:07,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:07:07,003 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 02:07:07,205 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:07:07,216 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:08,787 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:10,111 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:10,111 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-12 02:07:10,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:10 BoogieIcfgContainer [2023-11-12 02:07:10,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:10,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:07:10,120 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:07:10,123 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:07:10,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:07:06" (1/3) ... [2023-11-12 02:07:10,124 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da69c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:10, skipping insertion in model container [2023-11-12 02:07:10,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:06" (2/3) ... [2023-11-12 02:07:10,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da69c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:10, skipping insertion in model container [2023-11-12 02:07:10,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:10" (3/3) ... [2023-11-12 02:07:10,128 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2023-11-12 02:07:10,138 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:07:10,149 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:07:10,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 168 error locations. [2023-11-12 02:07:10,150 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:07:10,547 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:07:10,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 650 places, 662 transitions, 1352 flow [2023-11-12 02:07:10,907 INFO L124 PetriNetUnfolderBase]: 25/658 cut-off events. [2023-11-12 02:07:10,907 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:07:10,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 658 events. 25/658 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1106 event pairs, 0 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 565. Up to 2 conditions per place. [2023-11-12 02:07:10,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 650 places, 662 transitions, 1352 flow [2023-11-12 02:07:10,941 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 622 places, 633 transitions, 1290 flow [2023-11-12 02:07:10,947 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:07:10,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 622 places, 633 transitions, 1290 flow [2023-11-12 02:07:10,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 622 places, 633 transitions, 1290 flow [2023-11-12 02:07:10,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 622 places, 633 transitions, 1290 flow [2023-11-12 02:07:11,202 INFO L124 PetriNetUnfolderBase]: 24/633 cut-off events. [2023-11-12 02:07:11,202 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:07:11,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 633 events. 24/633 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1097 event pairs, 0 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 565. Up to 2 conditions per place. [2023-11-12 02:07:11,232 INFO L119 LiptonReduction]: Number of co-enabled transitions 33480 [2023-11-12 02:07:43,250 INFO L134 LiptonReduction]: Checked pairs total: 269250 [2023-11-12 02:07:43,250 INFO L136 LiptonReduction]: Total number of compositions: 656 [2023-11-12 02:07:43,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:07:43,273 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;@1ce0ab7a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:07:43,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 304 error locations. [2023-11-12 02:07:43,276 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:07:43,276 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:07:43,276 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:07:43,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:43,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:07:43,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-12 02:07:43,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:43,282 INFO L85 PathProgramCache]: Analyzing trace with hash 4239, now seen corresponding path program 1 times [2023-11-12 02:07:43,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:43,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978185948] [2023-11-12 02:07:43,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:43,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:43,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:43,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978185948] [2023-11-12 02:07:43,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978185948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:43,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:43,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:07:43,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053691647] [2023-11-12 02:07:43,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:43,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:07:43,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:43,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:07:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:07:43,452 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 1318 [2023-11-12 02:07:43,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 228 transitions, 480 flow. Second operand has 2 states, 2 states have (on average 492.5) internal successors, (985), 2 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:43,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:43,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 1318 [2023-11-12 02:07:43,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:46,330 INFO L124 PetriNetUnfolderBase]: 5716/9350 cut-off events. [2023-11-12 02:07:46,330 INFO L125 PetriNetUnfolderBase]: For 351/351 co-relation queries the response was YES. [2023-11-12 02:07:46,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16941 conditions, 9350 events. 5716/9350 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 62838 event pairs, 3444 based on Foata normal form. 1/6571 useless extension candidates. Maximal degree in co-relation 14930. Up to 7163 conditions per place. [2023-11-12 02:07:46,474 INFO L140 encePairwiseOnDemand]: 1154/1318 looper letters, 39 selfloop transitions, 0 changer transitions 1/64 dead transitions. [2023-11-12 02:07:46,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 232 flow [2023-11-12 02:07:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:07:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:07:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1188 transitions. [2023-11-12 02:07:46,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45068285280728376 [2023-11-12 02:07:46,502 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1188 transitions. [2023-11-12 02:07:46,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1188 transitions. [2023-11-12 02:07:46,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:07:46,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1188 transitions. [2023-11-12 02:07:46,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 594.0) internal successors, (1188), 2 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:46,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1318.0) internal successors, (3954), 3 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:46,537 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1318.0) internal successors, (3954), 3 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:46,539 INFO L175 Difference]: Start difference. First operand has 233 places, 228 transitions, 480 flow. Second operand 2 states and 1188 transitions. [2023-11-12 02:07:46,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 64 transitions, 232 flow [2023-11-12 02:07:46,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 64 transitions, 216 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-12 02:07:46,570 INFO L231 Difference]: Finished difference. Result has 62 places, 63 transitions, 133 flow [2023-11-12 02:07:46,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1318, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=133, PETRI_PLACES=62, PETRI_TRANSITIONS=63} [2023-11-12 02:07:46,577 INFO L281 CegarLoopForPetriNet]: 233 programPoint places, -171 predicate places. [2023-11-12 02:07:46,578 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 133 flow [2023-11-12 02:07:46,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 492.5) internal successors, (985), 2 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:46,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:07:46,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:07:46,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:07:46,580 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 300 more)] === [2023-11-12 02:07:46,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:07:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash 204809086, now seen corresponding path program 1 times [2023-11-12 02:07:46,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:07:46,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51039611] [2023-11-12 02:07:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:07:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:07:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:07:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:07:47,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:07:47,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51039611] [2023-11-12 02:07:47,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51039611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:07:47,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:07:47,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:07:47,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694181122] [2023-11-12 02:07:47,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:07:47,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:07:47,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:07:47,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:07:47,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:07:47,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 1318 [2023-11-12 02:07:47,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 63 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 468.8333333333333) internal successors, (2813), 6 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:07:47,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:07:47,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 1318 [2023-11-12 02:07:47,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:07:53,729 INFO L124 PetriNetUnfolderBase]: 15700/19701 cut-off events. [2023-11-12 02:07:53,731 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-12 02:07:53,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39066 conditions, 19701 events. 15700/19701 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 87887 event pairs, 1574 based on Foata normal form. 0/13761 useless extension candidates. Maximal degree in co-relation 39063. Up to 6754 conditions per place.