./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:37:10,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:37:10,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:37:10,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:37:10,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:37:10,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:37:10,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:37:10,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:37:10,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:37:10,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:37:10,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:37:10,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:37:10,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:37:10,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:37:10,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:37:10,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:37:10,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:37:10,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:37:10,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:37:10,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:37:10,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:37:10,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:37:10,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:37:10,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:37:10,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:37:10,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:37:10,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:37:10,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:37:10,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:37:10,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:37:10,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:37:10,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:37:10,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:37:10,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:37:10,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:37:10,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:37:10,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:37:10,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:37:10,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:37:10,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:37:10,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:37:10,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:37:10,879 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:37:10,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:37:10,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:37:10,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:37:10,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:37:10,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:37:10,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:37:10,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:37:10,881 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:37:10,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:37:10,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:37:10,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:37:10,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:37:10,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:37:10,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:37:10,885 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:37:10,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:37:10,885 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:37:10,885 INFO L138 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_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562 [2022-12-13 13:37:11,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:37:11,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:37:11,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:37:11,094 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:37:11,094 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:37:11,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-12-13 13:37:13,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:37:13,876 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:37:13,876 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c [2022-12-13 13:37:13,881 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/data/edd45142a/d81f30afadfb4771ae79105774ae5cf1/FLAG1706e72a4 [2022-12-13 13:37:13,891 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/data/edd45142a/d81f30afadfb4771ae79105774ae5cf1 [2022-12-13 13:37:13,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:37:13,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:37:13,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:37:13,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:37:13,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:37:13,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:37:13" (1/1) ... [2022-12-13 13:37:13,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f602357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:13, skipping insertion in model container [2022-12-13 13:37:13,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:37:13" (1/1) ... [2022-12-13 13:37:13,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:37:13,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:37:14,028 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:14,031 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:14,038 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:14,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:14,044 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-12-13 13:37:14,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:37:14,057 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:37:14,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:14,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:14,069 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:37:14,070 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:37:14,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284] [2022-12-13 13:37:14,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:37:14,087 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:37:14,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14 WrapperNode [2022-12-13 13:37:14,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:37:14,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:37:14,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:37:14,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:37:14,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,118 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 197 [2022-12-13 13:37:14,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:37:14,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:37:14,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:37:14,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:37:14,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:37:14,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:37:14,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:37:14,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:37:14,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (1/1) ... [2022-12-13 13:37:14,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:37:14,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:37:14,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:37:14,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:37:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:37:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 13:37:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 13:37:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:37:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:37:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:37:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:37:14,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:37:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:37:14,200 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:37:14,273 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:37:14,274 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:37:14,560 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:37:14,654 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:37:14,654 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 13:37:14,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:37:14 BoogieIcfgContainer [2022-12-13 13:37:14,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:37:14,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:37:14,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:37:14,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:37:14,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:37:13" (1/3) ... [2022-12-13 13:37:14,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735cc9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:37:14, skipping insertion in model container [2022-12-13 13:37:14,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:37:14" (2/3) ... [2022-12-13 13:37:14,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735cc9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:37:14, skipping insertion in model container [2022-12-13 13:37:14,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:37:14" (3/3) ... [2022-12-13 13:37:14,662 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c [2022-12-13 13:37:14,668 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:37:14,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:37:14,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-12-13 13:37:14,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:37:14,749 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 13:37:14,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 166 transitions, 348 flow [2022-12-13 13:37:14,840 INFO L130 PetriNetUnfolder]: 9/164 cut-off events. [2022-12-13 13:37:14,840 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:37:14,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 164 events. 9/164 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 142 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2022-12-13 13:37:14,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 166 transitions, 348 flow [2022-12-13 13:37:14,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 146 transitions, 304 flow [2022-12-13 13:37:14,854 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:37:14,865 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 145 places, 146 transitions, 304 flow [2022-12-13 13:37:14,868 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 145 places, 146 transitions, 304 flow [2022-12-13 13:37:14,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 146 transitions, 304 flow [2022-12-13 13:37:14,902 INFO L130 PetriNetUnfolder]: 8/146 cut-off events. [2022-12-13 13:37:14,903 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:37:14,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 146 events. 8/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2022-12-13 13:37:14,906 INFO L119 LiptonReduction]: Number of co-enabled transitions 1700 [2022-12-13 13:37:18,714 INFO L134 LiptonReduction]: Checked pairs total: 10376 [2022-12-13 13:37:18,715 INFO L136 LiptonReduction]: Total number of compositions: 132 [2022-12-13 13:37:18,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:37:18,730 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=LoopsAndPotentialCycles, 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;@5e23e4e2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:37:18,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-13 13:37:18,731 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:37:18,731 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:37:18,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:37:18,731 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:37:18,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:37:18,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:37:18,735 INFO L85 PathProgramCache]: Analyzing trace with hash 760, now seen corresponding path program 1 times [2022-12-13 13:37:18,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:37:18,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446677933] [2022-12-13 13:37:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:37:18,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:37:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:37:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:37:18,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:37:18,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446677933] [2022-12-13 13:37:18,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446677933] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:37:18,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:37:18,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:37:18,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667973801] [2022-12-13 13:37:18,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:37:18,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:37:18,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:37:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:37:18,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:37:18,832 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 298 [2022-12-13 13:37:18,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 106 flow. Second operand has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 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) [2022-12-13 13:37:18,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:37:18,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 298 [2022-12-13 13:37:18,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:37:18,891 INFO L130 PetriNetUnfolder]: 58/184 cut-off events. [2022-12-13 13:37:18,891 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 13:37:18,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 184 events. 58/184 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 773 event pairs, 27 based on Foata normal form. 31/178 useless extension candidates. Maximal degree in co-relation 217. Up to 96 conditions per place. [2022-12-13 13:37:18,893 INFO L137 encePairwiseOnDemand]: 283/298 looper letters, 14 selfloop transitions, 0 changer transitions 1/32 dead transitions. [2022-12-13 13:37:18,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 32 transitions, 106 flow [2022-12-13 13:37:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:37:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:37:18,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 320 transitions. [2022-12-13 13:37:18,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5369127516778524 [2022-12-13 13:37:18,905 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 320 transitions. [2022-12-13 13:37:18,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 320 transitions. [2022-12-13 13:37:18,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:37:18,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 320 transitions. [2022-12-13 13:37:18,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 160.0) internal successors, (320), 2 states have internal predecessors, (320), 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) [2022-12-13 13:37:18,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 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) [2022-12-13 13:37:18,914 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 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) [2022-12-13 13:37:18,915 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 106 flow. Second operand 2 states and 320 transitions. [2022-12-13 13:37:18,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 32 transitions, 106 flow [2022-12-13 13:37:18,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 98 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:37:18,919 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 65 flow [2022-12-13 13:37:18,920 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=65, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2022-12-13 13:37:18,923 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -16 predicate places. [2022-12-13 13:37:18,923 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 65 flow [2022-12-13 13:37:18,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 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) [2022-12-13 13:37:18,924 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:37:18,924 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:37:18,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:37:18,924 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:37:18,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:37:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1202217750, now seen corresponding path program 1 times [2022-12-13 13:37:18,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:37:18,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760648394] [2022-12-13 13:37:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:37:18,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:37:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:37:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:37:18,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:37:18,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760648394] [2022-12-13 13:37:18,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760648394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:37:18,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:37:18,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:37:18,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318000956] [2022-12-13 13:37:18,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:37:18,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:37:18,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:37:18,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:37:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:37:19,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 298 [2022-12-13 13:37:19,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2022-12-13 13:37:19,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:37:19,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 298 [2022-12-13 13:37:19,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:37:19,066 INFO L130 PetriNetUnfolder]: 91/228 cut-off events. [2022-12-13 13:37:19,066 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 13:37:19,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 228 events. 91/228 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 870 event pairs, 66 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 394. Up to 160 conditions per place. [2022-12-13 13:37:19,068 INFO L137 encePairwiseOnDemand]: 295/298 looper letters, 16 selfloop transitions, 1 changer transitions 0/29 dead transitions. [2022-12-13 13:37:19,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 95 flow [2022-12-13 13:37:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:37:19,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:37:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 424 transitions. [2022-12-13 13:37:19,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4742729306487696 [2022-12-13 13:37:19,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 424 transitions. [2022-12-13 13:37:19,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 424 transitions. [2022-12-13 13:37:19,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:37:19,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 424 transitions. [2022-12-13 13:37:19,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2022-12-13 13:37:19,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 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) [2022-12-13 13:37:19,077 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 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) [2022-12-13 13:37:19,077 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 65 flow. Second operand 3 states and 424 transitions. [2022-12-13 13:37:19,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 95 flow [2022-12-13 13:37:19,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 95 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:37:19,079 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 63 flow [2022-12-13 13:37:19,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=63, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2022-12-13 13:37:19,079 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -17 predicate places. [2022-12-13 13:37:19,080 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 63 flow [2022-12-13 13:37:19,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2022-12-13 13:37:19,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:37:19,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:37:19,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:37:19,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:37:19,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:37:19,081 INFO L85 PathProgramCache]: Analyzing trace with hash 970047791, now seen corresponding path program 1 times [2022-12-13 13:37:19,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:37:19,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894286115] [2022-12-13 13:37:19,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:37:19,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:37:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:37:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:37:19,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:37:19,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894286115] [2022-12-13 13:37:19,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894286115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:37:19,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:37:19,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:37:19,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484624450] [2022-12-13 13:37:19,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:37:19,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:37:19,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:37:19,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:37:19,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:37:19,484 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:37:19,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2022-12-13 13:37:19,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:37:19,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:37:19,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:37:19,644 INFO L130 PetriNetUnfolder]: 182/300 cut-off events. [2022-12-13 13:37:19,644 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:37:19,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 300 events. 182/300 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1147 event pairs, 7 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 571. Up to 104 conditions per place. [2022-12-13 13:37:19,646 INFO L137 encePairwiseOnDemand]: 293/298 looper letters, 34 selfloop transitions, 4 changer transitions 0/48 dead transitions. [2022-12-13 13:37:19,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 177 flow [2022-12-13 13:37:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:37:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:37:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 831 transitions. [2022-12-13 13:37:19,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46476510067114096 [2022-12-13 13:37:19,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 831 transitions. [2022-12-13 13:37:19,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 831 transitions. [2022-12-13 13:37:19,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:37:19,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 831 transitions. [2022-12-13 13:37:19,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 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) [2022-12-13 13:37:19,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 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) [2022-12-13 13:37:19,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 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) [2022-12-13 13:37:19,658 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 63 flow. Second operand 6 states and 831 transitions. [2022-12-13 13:37:19,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 177 flow [2022-12-13 13:37:19,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:37:19,660 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 68 flow [2022-12-13 13:37:19,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=68, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2022-12-13 13:37:19,661 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -14 predicate places. [2022-12-13 13:37:19,661 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 68 flow [2022-12-13 13:37:19,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2022-12-13 13:37:19,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:37:19,662 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:37:19,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:37:19,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:37:19,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:37:19,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1557173250, now seen corresponding path program 1 times [2022-12-13 13:37:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:37:19,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474092587] [2022-12-13 13:37:19,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:37:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:37:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:37:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:37:19,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:37:19,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474092587] [2022-12-13 13:37:19,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474092587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:37:19,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:37:19,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:37:19,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188322130] [2022-12-13 13:37:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:37:19,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:37:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:37:19,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:37:19,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:37:20,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:37:20,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 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) [2022-12-13 13:37:20,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:37:20,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:37:20,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:37:20,138 INFO L130 PetriNetUnfolder]: 78/181 cut-off events. [2022-12-13 13:37:20,138 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-13 13:37:20,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 181 events. 78/181 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 682 event pairs, 24 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 352. Up to 86 conditions per place. [2022-12-13 13:37:20,139 INFO L137 encePairwiseOnDemand]: 293/298 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2022-12-13 13:37:20,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 39 transitions, 150 flow [2022-12-13 13:37:20,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:37:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:37:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2022-12-13 13:37:20,141 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4602908277404922 [2022-12-13 13:37:20,141 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2022-12-13 13:37:20,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2022-12-13 13:37:20,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:37:20,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2022-12-13 13:37:20,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 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) [2022-12-13 13:37:20,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 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) [2022-12-13 13:37:20,145 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 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) [2022-12-13 13:37:20,145 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 68 flow. Second operand 6 states and 823 transitions. [2022-12-13 13:37:20,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 39 transitions, 150 flow [2022-12-13 13:37:20,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 39 transitions, 143 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:37:20,146 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2022-12-13 13:37:20,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2022-12-13 13:37:20,147 INFO L288 CegarLoopForPetriNet]: 49 programPoint places, -14 predicate places. [2022-12-13 13:37:20,147 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2022-12-13 13:37:20,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 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) [2022-12-13 13:37:20,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2022-12-13 13:37:20,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2022-12-13 13:37:20,149 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2022-12-13 13:37:20,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2022-12-13 13:37:20,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2022-12-13 13:37:20,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2022-12-13 13:37:20,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:37:20,153 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 13:37:20,156 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:37:20,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:37:20,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:37:20 BasicIcfg [2022-12-13 13:37:20,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:37:20,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:37:20,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:37:20,159 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:37:20,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:37:14" (3/4) ... [2022-12-13 13:37:20,162 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:37:20,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 13:37:20,165 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 13:37:20,168 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 13:37:20,168 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:37:20,169 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:37:20,169 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:37:20,195 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:37:20,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:37:20,196 INFO L158 Benchmark]: Toolchain (without parser) took 6300.48ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 109.6MB in the beginning and 149.4MB in the end (delta: -39.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,196 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:37:20,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.48ms. Allocated memory is still 146.8MB. Free memory was 109.4MB in the beginning and 97.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.70ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 94.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,197 INFO L158 Benchmark]: Boogie Preprocessor took 22.57ms. Allocated memory is still 146.8MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,197 INFO L158 Benchmark]: RCFGBuilder took 514.34ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 52.1MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,197 INFO L158 Benchmark]: TraceAbstraction took 5501.53ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 51.4MB in the beginning and 152.5MB in the end (delta: -101.1MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,197 INFO L158 Benchmark]: Witness Printer took 36.06ms. Allocated memory is still 197.1MB. Free memory was 152.5MB in the beginning and 149.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:37:20,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.48ms. Allocated memory is still 146.8MB. Free memory was 109.4MB in the beginning and 97.0MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.70ms. Allocated memory is still 146.8MB. Free memory was 97.0MB in the beginning and 94.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.57ms. Allocated memory is still 146.8MB. Free memory was 94.4MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.34ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 52.1MB in the end (delta: 40.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5501.53ms. Allocated memory was 146.8MB in the beginning and 197.1MB in the end (delta: 50.3MB). Free memory was 51.4MB in the beginning and 152.5MB in the end (delta: -101.1MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Witness Printer took 36.06ms. Allocated memory is still 197.1MB. Free memory was 152.5MB in the beginning and 149.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 145 PlacesBefore, 49 PlacesAfterwards, 146 TransitionsBefore, 47 TransitionsAfterwards, 1700 CoEnabledTransitionPairs, 8 FixpointIterations, 83 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 132 TotalNumberOfCompositions, 10376 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3819, independent: 3372, independent conditional: 0, independent unconditional: 3372, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 915, independent: 857, independent conditional: 0, independent unconditional: 857, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3819, independent: 2515, independent conditional: 0, independent unconditional: 2515, dependent: 389, dependent conditional: 0, dependent unconditional: 389, unknown: 915, unknown conditional: 0, unknown unconditional: 915] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 192, Positive conditional cache size: 0, Positive unconditional cache size: 192, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: 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: 51]: 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: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: 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: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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 5 procedures, 192 locations, 29 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: 5.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 375 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 14 mSDtfsCounter, 375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:37:20,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1060c916-cf64-40c3-a7a5-a01aee558491/bin/uautomizer-uyxdKDjOR8/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