./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-difference-det.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_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/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_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/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_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/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 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:24:46,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:24:46,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:24:46,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:24:46,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:24:46,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:24:46,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:24:46,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:24:46,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:24:46,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:24:46,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:24:46,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:24:46,844 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:24:46,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:24:46,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:24:46,846 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:24:46,847 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:24:46,847 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:24:46,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:24:46,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:24:46,849 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:24:46,850 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:24:46,850 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:24:46,851 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:24:46,851 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:24:46,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:24:46,852 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:24:46,853 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:24:46,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:24:46,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:24:46,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:46,855 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:24:46,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:24:46,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:24:46,869 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:24:46,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:24:46,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:24:46,870 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:24:46,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:24:46,871 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:24:46,871 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:24:46,871 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_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38e3acb82ec05e672eff9207911c10948d6c695f982992ce82b68981a799bba7 [2023-11-12 02:24:47,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:24:47,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:24:47,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:24:47,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:24:47,218 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:24:47,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-12 02:24:50,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:24:50,604 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:24:50,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/sv-benchmarks/c/weaver/popl20-difference-det.wvr.c [2023-11-12 02:24:50,615 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/data/445718626/d0ad987c81b24e51b3726f1f803f074f/FLAG455ed8cff [2023-11-12 02:24:50,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/data/445718626/d0ad987c81b24e51b3726f1f803f074f [2023-11-12 02:24:50,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:24:50,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:24:50,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:50,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:24:50,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:24:50,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:50" (1/1) ... [2023-11-12 02:24:50,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37497370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:50, skipping insertion in model container [2023-11-12 02:24:50,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:50" (1/1) ... [2023-11-12 02:24:50,701 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:24:50,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:50,951 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:24:50,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:50,996 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:50,996 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:51,005 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:24:51,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51 WrapperNode [2023-11-12 02:24:51,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:51,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:51,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:24:51,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:24:51,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,069 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 179 [2023-11-12 02:24:51,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:51,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:24:51,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:24:51,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:24:51,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:24:51,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:24:51,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:24:51,117 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:24:51,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (1/1) ... [2023-11-12 02:24:51,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:51,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:51,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:24:51,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:24:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:24:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:24:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:24:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:24:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:24:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:24:51,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:24:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:24:51,262 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:24:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:24:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:24:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:24:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:24:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:24:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:24:51,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:24:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:24:51,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:24:51,265 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 02:24:51,392 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:24:51,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:24:51,839 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:24:51,977 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:24:51,977 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:24:51,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:51 BoogieIcfgContainer [2023-11-12 02:24:51,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:24:51,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:24:51,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:24:51,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:24:51,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:24:50" (1/3) ... [2023-11-12 02:24:51,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58556cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:51, skipping insertion in model container [2023-11-12 02:24:51,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:51" (2/3) ... [2023-11-12 02:24:51,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58556cc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:51, skipping insertion in model container [2023-11-12 02:24:51,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:51" (3/3) ... [2023-11-12 02:24:51,992 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2023-11-12 02:24:52,002 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:24:52,014 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:24:52,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-12 02:24:52,015 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:24:52,140 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:24:52,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 198 transitions, 424 flow [2023-11-12 02:24:52,289 INFO L124 PetriNetUnfolderBase]: 9/194 cut-off events. [2023-11-12 02:24:52,289 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:24:52,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 194 events. 9/194 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 228 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 114. Up to 2 conditions per place. [2023-11-12 02:24:52,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 198 transitions, 424 flow [2023-11-12 02:24:52,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 169 transitions, 362 flow [2023-11-12 02:24:52,309 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:24:52,321 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 169 transitions, 362 flow [2023-11-12 02:24:52,324 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 169 transitions, 362 flow [2023-11-12 02:24:52,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 169 transitions, 362 flow [2023-11-12 02:24:52,381 INFO L124 PetriNetUnfolderBase]: 8/169 cut-off events. [2023-11-12 02:24:52,381 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:24:52,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 169 events. 8/169 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 225 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2023-11-12 02:24:52,390 INFO L119 LiptonReduction]: Number of co-enabled transitions 8090 [2023-11-12 02:24:58,299 INFO L134 LiptonReduction]: Checked pairs total: 21900 [2023-11-12 02:24:58,299 INFO L136 LiptonReduction]: Total number of compositions: 153 [2023-11-12 02:24:58,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:24:58,322 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;@65d420d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:24:58,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-12 02:24:58,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:24:58,324 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:24:58,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:58,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:58,325 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:24:58,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:24:58,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:58,331 INFO L85 PathProgramCache]: Analyzing trace with hash 820, now seen corresponding path program 1 times [2023-11-12 02:24:58,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:58,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343482452] [2023-11-12 02:24:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:58,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:58,446 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 02:24:58,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343482452] [2023-11-12 02:24:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343482452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:58,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:58,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:24:58,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883491844] [2023-11-12 02:24:58,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:58,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:24:58,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:58,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:24:58,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:24:58,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 351 [2023-11-12 02:24:58,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 148 flow. Second operand has 2 states, 2 states have (on average 170.5) internal successors, (341), 2 states have internal predecessors, (341), 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 02:24:58,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:58,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 351 [2023-11-12 02:24:58,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:58,946 INFO L124 PetriNetUnfolderBase]: 1627/2323 cut-off events. [2023-11-12 02:24:58,946 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2023-11-12 02:24:58,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4645 conditions, 2323 events. 1627/2323 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 10306 event pairs, 1113 based on Foata normal form. 515/2585 useless extension candidates. Maximal degree in co-relation 3570. Up to 2150 conditions per place. [2023-11-12 02:24:58,976 INFO L140 encePairwiseOnDemand]: 329/351 looper letters, 29 selfloop transitions, 0 changer transitions 1/40 dead transitions. [2023-11-12 02:24:58,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 40 transitions, 164 flow [2023-11-12 02:24:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:24:58,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:24:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 392 transitions. [2023-11-12 02:24:59,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5584045584045584 [2023-11-12 02:24:59,004 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 392 transitions. [2023-11-12 02:24:59,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 392 transitions. [2023-11-12 02:24:59,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:59,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 392 transitions. [2023-11-12 02:24:59,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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 02:24:59,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 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 02:24:59,024 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 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 02:24:59,027 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 148 flow. Second operand 2 states and 392 transitions. [2023-11-12 02:24:59,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 40 transitions, 164 flow [2023-11-12 02:24:59,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 148 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-12 02:24:59,038 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 85 flow [2023-11-12 02:24:59,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=85, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-11-12 02:24:59,046 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -25 predicate places. [2023-11-12 02:24:59,046 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 85 flow [2023-11-12 02:24:59,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 170.5) internal successors, (341), 2 states have internal predecessors, (341), 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 02:24:59,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:59,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:24:59,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:24:59,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:24:59,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:59,049 INFO L85 PathProgramCache]: Analyzing trace with hash 779613828, now seen corresponding path program 1 times [2023-11-12 02:24:59,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:59,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904390489] [2023-11-12 02:24:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:59,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:59,215 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 02:24:59,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:59,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904390489] [2023-11-12 02:24:59,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904390489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:59,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:59,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:59,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502744767] [2023-11-12 02:24:59,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:59,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:24:59,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:24:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:24:59,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 351 [2023-11-12 02:24:59,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 02:24:59,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:59,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 351 [2023-11-12 02:24:59,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:59,795 INFO L124 PetriNetUnfolderBase]: 3389/4500 cut-off events. [2023-11-12 02:24:59,796 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-12 02:24:59,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9058 conditions, 4500 events. 3389/4500 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 19925 event pairs, 517 based on Foata normal form. 0/3933 useless extension candidates. Maximal degree in co-relation 9055. Up to 4000 conditions per place. [2023-11-12 02:24:59,832 INFO L140 encePairwiseOnDemand]: 347/351 looper letters, 48 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-11-12 02:24:59,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 55 transitions, 220 flow [2023-11-12 02:24:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:24:59,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:24:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2023-11-12 02:24:59,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137701804368471 [2023-11-12 02:24:59,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2023-11-12 02:24:59,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2023-11-12 02:24:59,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:59,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2023-11-12 02:24:59,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 02:24:59,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 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 02:24:59,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 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 02:24:59,847 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 85 flow. Second operand 3 states and 541 transitions. [2023-11-12 02:24:59,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 55 transitions, 220 flow [2023-11-12 02:24:59,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:59,850 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 95 flow [2023-11-12 02:24:59,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-11-12 02:24:59,851 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -25 predicate places. [2023-11-12 02:24:59,852 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 95 flow [2023-11-12 02:24:59,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 02:24:59,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:59,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:59,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:24:59,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-12 02:24:59,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:59,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1934728267, now seen corresponding path program 1 times [2023-11-12 02:24:59,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:59,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238948683] [2023-11-12 02:24:59,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:59,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:59,920 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 02:24:59,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:59,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238948683] [2023-11-12 02:24:59,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238948683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:59,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:59,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:59,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767740428] [2023-11-12 02:24:59,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:59,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:24:59,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:59,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:24:59,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:24:59,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 351 [2023-11-12 02:24:59,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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 02:24:59,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:59,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 351 [2023-11-12 02:24:59,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:00,606 INFO L124 PetriNetUnfolderBase]: 4946/6531 cut-off events. [2023-11-12 02:25:00,606 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2023-11-12 02:25:00,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13207 conditions, 6531 events. 4946/6531 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 31540 event pairs, 773 based on Foata normal form. 0/5501 useless extension candidates. Maximal degree in co-relation 13203. Up to 5608 conditions per place. [2023-11-12 02:25:00,630 INFO L140 encePairwiseOnDemand]: 347/351 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2023-11-12 02:25:00,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 55 transitions, 230 flow [2023-11-12 02:25:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:00,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:25:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2023-11-12 02:25:00,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137701804368471 [2023-11-12 02:25:00,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2023-11-12 02:25:00,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2023-11-12 02:25:00,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:00,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2023-11-12 02:25:00,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 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 02:25:00,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 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 02:25:00,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 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 02:25:00,642 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 95 flow. Second operand 3 states and 541 transitions. [2023-11-12 02:25:00,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 55 transitions, 230 flow [2023-11-12 02:25:00,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:25:00,645 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2023-11-12 02:25:00,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2023-11-12 02:25:00,646 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -25 predicate places. [2023-11-12 02:25:00,646 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2023-11-12 02:25:00,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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 02:25:00,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-12 02:25:00,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-12 02:25:00,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-12 02:25:00,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-12 02:25:00,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-12 02:25:00,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-12 02:25:00,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-12 02:25:00,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-12 02:25:00,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-12 02:25:00,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-12 02:25:00,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-11-12 02:25:00,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-12 02:25:00,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-12 02:25:00,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-12 02:25:00,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-12 02:25:00,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-12 02:25:00,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-12 02:25:00,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-12 02:25:00,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 40 remaining) [2023-11-12 02:25:00,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 40 remaining) [2023-11-12 02:25:00,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-11-12 02:25:00,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 40 remaining) [2023-11-12 02:25:00,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-12 02:25:00,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-12 02:25:00,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-11-12 02:25:00,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-12 02:25:00,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-12 02:25:00,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-12 02:25:00,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-12 02:25:00,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-12 02:25:00,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-12 02:25:00,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-12 02:25:00,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-12 02:25:00,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-12 02:25:00,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-12 02:25:00,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-12 02:25:00,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-12 02:25:00,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-12 02:25:00,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-12 02:25:00,662 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-11-12 02:25:00,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:25:00,663 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 02:25:00,669 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:25:00,669 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:25:00,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:25:00 BasicIcfg [2023-11-12 02:25:00,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:25:00,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:25:00,675 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:25:00,675 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:25:00,676 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:51" (3/4) ... [2023-11-12 02:25:00,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:25:00,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-12 02:25:00,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-12 02:25:00,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-12 02:25:00,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2023-11-12 02:25:00,691 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:25:00,692 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:25:00,692 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:25:00,693 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:25:00,800 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:25:00,801 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:25:00,801 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:25:00,802 INFO L158 Benchmark]: Toolchain (without parser) took 10159.29ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 138.3MB in the beginning and 154.3MB in the end (delta: -15.9MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,802 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:25:00,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.87ms. Allocated memory is still 169.9MB. Free memory was 138.1MB in the beginning and 129.1MB in the end (delta: 9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.00ms. Allocated memory is still 169.9MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,804 INFO L158 Benchmark]: Boogie Preprocessor took 45.10ms. Allocated memory is still 169.9MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,804 INFO L158 Benchmark]: RCFGBuilder took 864.35ms. Allocated memory is still 169.9MB. Free memory was 124.9MB in the beginning and 110.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,805 INFO L158 Benchmark]: TraceAbstraction took 8690.22ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 109.1MB in the beginning and 158.5MB in the end (delta: -49.3MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,805 INFO L158 Benchmark]: Witness Printer took 126.53ms. Allocated memory is still 247.5MB. Free memory was 158.5MB in the beginning and 154.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:25:00,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.87ms. Allocated memory is still 169.9MB. Free memory was 138.1MB in the beginning and 129.1MB in the end (delta: 9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.00ms. Allocated memory is still 169.9MB. Free memory was 129.1MB in the beginning and 127.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.10ms. Allocated memory is still 169.9MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 864.35ms. Allocated memory is still 169.9MB. Free memory was 124.9MB in the beginning and 110.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8690.22ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 109.1MB in the beginning and 158.5MB in the end (delta: -49.3MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. * Witness Printer took 126.53ms. Allocated memory is still 247.5MB. Free memory was 158.5MB in the beginning and 154.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 174 PlacesBefore, 67 PlacesAfterwards, 169 TransitionsBefore, 62 TransitionsAfterwards, 8090 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 97 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 153 TotalNumberOfCompositions, 21900 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11766, independent: 11445, independent conditional: 0, independent unconditional: 11445, dependent: 321, dependent conditional: 0, dependent unconditional: 321, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4744, independent: 4710, independent conditional: 0, independent unconditional: 4710, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11766, independent: 6735, independent conditional: 0, independent unconditional: 6735, dependent: 287, dependent conditional: 0, dependent unconditional: 287, unknown: 4744, unknown conditional: 0, unknown unconditional: 4744] , Statistics on independence cache: Total cache size (in pairs): 551, Positive cache size: 532, Positive conditional cache size: 0, Positive unconditional cache size: 532, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 260 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 84 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 15 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:25:00,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82c85b9b-f406-43d4-9d48-22fed6f9aa5d/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE