./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc --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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- 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-5e519f3 [2022-11-02 20:07:54,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:07:54,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:07:54,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:07:54,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:07:54,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:07:54,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:07:54,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:07:54,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:07:54,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:07:54,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:07:54,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:07:54,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:07:54,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:07:54,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:07:54,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:07:54,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:07:54,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:07:54,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:07:54,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:07:54,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:07:54,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:07:54,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:07:54,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:07:54,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:07:54,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:07:54,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:07:54,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:07:54,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:07:54,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:07:54,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:07:54,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:07:54,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:07:54,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:07:54,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:07:54,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:07:54,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:07:54,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:07:54,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:07:54,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:07:54,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:07:54,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:07:54,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:07:54,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:07:54,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:07:54,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:07:54,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:07:54,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:07:54,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:07:54,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:07:54,995 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:07:54,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:07:54,996 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:07:54,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:07:54,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:07:54,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:07:54,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:07:54,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:07:54,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:07:54,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:07:54,998 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:07:54,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:07:54,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:07:54,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:07:54,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:07:54,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:07:55,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:07:55,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:07:55,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:55,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:07:55,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:07:55,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:07:55,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:07:55,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:07:55,002 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:07:55,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:07:55,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:07:55,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2022-11-02 20:07:55,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:07:55,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:07:55,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:07:55,278 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:07:55,279 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:07:55,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-11-02 20:07:55,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/data/c2c14bf4b/9a463e490413458fadef66d19eddec75/FLAG51a478d51 [2022-11-02 20:07:55,946 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:07:55,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-11-02 20:07:55,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/data/c2c14bf4b/9a463e490413458fadef66d19eddec75/FLAG51a478d51 [2022-11-02 20:07:56,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/data/c2c14bf4b/9a463e490413458fadef66d19eddec75 [2022-11-02 20:07:56,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:07:56,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:07:56,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:56,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:07:56,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:07:56,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:56" (1/1) ... [2022-11-02 20:07:56,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c3b766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:56, skipping insertion in model container [2022-11-02 20:07:56,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:07:56" (1/1) ... [2022-11-02 20:07:56,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:07:56,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:07:56,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:56,894 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:07:56,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:07:57,004 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:07:57,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57 WrapperNode [2022-11-02 20:07:57,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:07:57,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:57,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:07:57,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:07:57,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,061 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-11-02 20:07:57,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:07:57,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:07:57,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:07:57,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:07:57,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:07:57,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:07:57,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:07:57,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:07:57,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (1/1) ... [2022-11-02 20:07:57,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:07:57,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:07:57,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:07:57,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:07:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:07:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:07:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:07:57,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:07:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:07:57,215 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:07:57,378 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:07:57,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:07:57,905 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:07:57,934 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:07:57,935 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:07:57,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:57 BoogieIcfgContainer [2022-11-02 20:07:57,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:07:57,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:07:57,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:07:57,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:07:57,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:07:56" (1/3) ... [2022-11-02 20:07:57,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d88ee90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:57, skipping insertion in model container [2022-11-02 20:07:57,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:07:57" (2/3) ... [2022-11-02 20:07:57,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d88ee90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:07:57, skipping insertion in model container [2022-11-02 20:07:57,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:57" (3/3) ... [2022-11-02 20:07:57,976 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2022-11-02 20:07:57,994 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:07:58,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:07:58,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-02 20:07:58,006 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:07:58,133 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:07:58,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 365 flow [2022-11-02 20:07:58,290 INFO L130 PetriNetUnfolder]: 0/179 cut-off events. [2022-11-02 20:07:58,291 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:07:58,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-02 20:07:58,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 180 transitions, 365 flow [2022-11-02 20:07:58,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 179 transitions, 361 flow [2022-11-02 20:07:58,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:07:58,320 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;@6cf36082, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:07:58,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-02 20:07:58,330 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-02 20:07:58,330 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:07:58,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:58,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:58,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:07:58,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2052627791, now seen corresponding path program 1 times [2022-11-02 20:07:58,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:58,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466349943] [2022-11-02 20:07:58,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:58,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:07:59,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:07:59,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:07:59,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466349943] [2022-11-02 20:07:59,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466349943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:07:59,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:07:59,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:07:59,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317550223] [2022-11-02 20:07:59,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:07:59,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:07:59,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:07:59,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:07:59,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:07:59,291 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 180 [2022-11-02 20:07:59,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 179 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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) [2022-11-02 20:07:59,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:07:59,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 180 [2022-11-02 20:07:59,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:07:59,739 INFO L130 PetriNetUnfolder]: 144/631 cut-off events. [2022-11-02 20:07:59,740 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:07:59,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 631 events. 144/631 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2675 event pairs, 144 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 850. Up to 346 conditions per place. [2022-11-02 20:07:59,752 INFO L137 encePairwiseOnDemand]: 168/180 looper letters, 57 selfloop transitions, 10 changer transitions 0/177 dead transitions. [2022-11-02 20:07:59,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 177 transitions, 491 flow [2022-11-02 20:07:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:07:59,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:07:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 735 transitions. [2022-11-02 20:07:59,778 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2022-11-02 20:07:59,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 735 transitions. [2022-11-02 20:07:59,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 735 transitions. [2022-11-02 20:07:59,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:07:59,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 735 transitions. [2022-11-02 20:07:59,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 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) [2022-11-02 20:07:59,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:07:59,805 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:07:59,807 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 361 flow. Second operand 6 states and 735 transitions. [2022-11-02 20:07:59,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 177 transitions, 491 flow [2022-11-02 20:07:59,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 177 transitions, 490 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:07:59,818 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 376 flow [2022-11-02 20:07:59,820 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2022-11-02 20:07:59,827 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 2 predicate places. [2022-11-02 20:07:59,827 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 376 flow [2022-11-02 20:07:59,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 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) [2022-11-02 20:07:59,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:07:59,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:07:59,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:07:59,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:07:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:07:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash 320042173, now seen corresponding path program 1 times [2022-11-02 20:07:59,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:07:59,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510992388] [2022-11-02 20:07:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:07:59,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:07:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:00,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:00,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510992388] [2022-11-02 20:08:00,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510992388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:00,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:00,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:00,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710579496] [2022-11-02 20:08:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:00,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:08:00,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:00,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:08:00,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:08:00,329 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 180 [2022-11-02 20:08:00,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2022-11-02 20:08:00,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:00,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 180 [2022-11-02 20:08:00,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:00,684 INFO L130 PetriNetUnfolder]: 144/629 cut-off events. [2022-11-02 20:08:00,684 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:08:00,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 629 events. 144/629 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2655 event pairs, 144 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 884. Up to 344 conditions per place. [2022-11-02 20:08:00,689 INFO L137 encePairwiseOnDemand]: 168/180 looper letters, 55 selfloop transitions, 10 changer transitions 0/175 dead transitions. [2022-11-02 20:08:00,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 175 transitions, 502 flow [2022-11-02 20:08:00,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:08:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:08:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 733 transitions. [2022-11-02 20:08:00,692 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6787037037037037 [2022-11-02 20:08:00,692 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 733 transitions. [2022-11-02 20:08:00,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 733 transitions. [2022-11-02 20:08:00,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:00,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 733 transitions. [2022-11-02 20:08:00,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 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) [2022-11-02 20:08:00,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:00,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:00,698 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 376 flow. Second operand 6 states and 733 transitions. [2022-11-02 20:08:00,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 175 transitions, 502 flow [2022-11-02 20:08:00,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 175 transitions, 482 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:08:00,706 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 372 flow [2022-11-02 20:08:00,707 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2022-11-02 20:08:00,708 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2022-11-02 20:08:00,708 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 372 flow [2022-11-02 20:08:00,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2022-11-02 20:08:00,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:00,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:00,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:08:00,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:00,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash -170333930, now seen corresponding path program 1 times [2022-11-02 20:08:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:00,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107139370] [2022-11-02 20:08:00,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:00,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:00,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:00,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:00,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107139370] [2022-11-02 20:08:00,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107139370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:00,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:00,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:00,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054729031] [2022-11-02 20:08:00,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:00,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:00,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:00,792 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 180 [2022-11-02 20:08:00,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2022-11-02 20:08:00,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:00,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 180 [2022-11-02 20:08:00,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:00,855 INFO L130 PetriNetUnfolder]: 9/290 cut-off events. [2022-11-02 20:08:00,855 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:08:00,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 290 events. 9/290 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 656 event pairs, 9 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 235. Up to 29 conditions per place. [2022-11-02 20:08:00,857 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 10 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2022-11-02 20:08:00,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 174 transitions, 394 flow [2022-11-02 20:08:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:00,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:00,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2022-11-02 20:08:00,859 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9518518518518518 [2022-11-02 20:08:00,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2022-11-02 20:08:00,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2022-11-02 20:08:00,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:00,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2022-11-02 20:08:00,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2022-11-02 20:08:00,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:00,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:00,863 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 372 flow. Second operand 3 states and 514 transitions. [2022-11-02 20:08:00,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 174 transitions, 394 flow [2022-11-02 20:08:00,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 174 transitions, 374 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:08:00,868 INFO L231 Difference]: Finished difference. Result has 179 places, 174 transitions, 354 flow [2022-11-02 20:08:00,868 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=179, PETRI_TRANSITIONS=174} [2022-11-02 20:08:00,869 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, -4 predicate places. [2022-11-02 20:08:00,869 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 174 transitions, 354 flow [2022-11-02 20:08:00,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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) [2022-11-02 20:08:00,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:00,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:00,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:08:00,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2000222690, now seen corresponding path program 1 times [2022-11-02 20:08:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:00,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466422061] [2022-11-02 20:08:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:00,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:00,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466422061] [2022-11-02 20:08:00,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466422061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:00,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:00,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:00,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161477211] [2022-11-02 20:08:00,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:00,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:00,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:00,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:00,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:00,957 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 180 [2022-11-02 20:08:00,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 174 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2022-11-02 20:08:00,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:00,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 180 [2022-11-02 20:08:00,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:00,999 INFO L130 PetriNetUnfolder]: 0/173 cut-off events. [2022-11-02 20:08:01,000 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:08:01,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 173 events. 0/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-02 20:08:01,001 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 7 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-02 20:08:01,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 173 transitions, 370 flow [2022-11-02 20:08:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:01,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2022-11-02 20:08:01,003 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2022-11-02 20:08:01,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 520 transitions. [2022-11-02 20:08:01,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 520 transitions. [2022-11-02 20:08:01,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:01,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 520 transitions. [2022-11-02 20:08:01,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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) [2022-11-02 20:08:01,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:01,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:01,008 INFO L175 Difference]: Start difference. First operand has 179 places, 174 transitions, 354 flow. Second operand 3 states and 520 transitions. [2022-11-02 20:08:01,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 173 transitions, 370 flow [2022-11-02 20:08:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 173 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:01,013 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 352 flow [2022-11-02 20:08:01,014 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2022-11-02 20:08:01,014 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, -5 predicate places. [2022-11-02 20:08:01,015 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 352 flow [2022-11-02 20:08:01,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2022-11-02 20:08:01,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:01,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:01,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:08:01,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:01,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:01,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1678385605, now seen corresponding path program 1 times [2022-11-02 20:08:01,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:01,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317071245] [2022-11-02 20:08:01,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:01,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:01,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:01,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317071245] [2022-11-02 20:08:01,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317071245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:01,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:01,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:08:01,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541695790] [2022-11-02 20:08:01,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:01,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:01,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:01,108 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 180 [2022-11-02 20:08:01,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2022-11-02 20:08:01,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:01,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 180 [2022-11-02 20:08:01,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:01,160 INFO L130 PetriNetUnfolder]: 4/260 cut-off events. [2022-11-02 20:08:01,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:08:01,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 260 events. 4/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 458 event pairs, 2 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2022-11-02 20:08:01,162 INFO L137 encePairwiseOnDemand]: 176/180 looper letters, 7 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-02 20:08:01,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 370 flow [2022-11-02 20:08:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:01,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-11-02 20:08:01,164 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9648148148148148 [2022-11-02 20:08:01,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-11-02 20:08:01,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-11-02 20:08:01,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:01,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-11-02 20:08:01,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 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) [2022-11-02 20:08:01,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:01,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:01,170 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 352 flow. Second operand 3 states and 521 transitions. [2022-11-02 20:08:01,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 370 flow [2022-11-02 20:08:01,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:08:01,174 INFO L231 Difference]: Finished difference. Result has 177 places, 173 transitions, 358 flow [2022-11-02 20:08:01,174 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=177, PETRI_TRANSITIONS=173} [2022-11-02 20:08:01,178 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2022-11-02 20:08:01,179 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 173 transitions, 358 flow [2022-11-02 20:08:01,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2022-11-02 20:08:01,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:01,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:01,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:08:01,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:01,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1501407425, now seen corresponding path program 1 times [2022-11-02 20:08:01,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:01,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623697819] [2022-11-02 20:08:01,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:01,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:01,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623697819] [2022-11-02 20:08:01,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623697819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:01,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:01,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:01,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752808089] [2022-11-02 20:08:01,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:01,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:08:01,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:01,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:08:01,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:08:01,767 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 180 [2022-11-02 20:08:01,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 173 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 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) [2022-11-02 20:08:01,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:01,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 180 [2022-11-02 20:08:01,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:02,105 INFO L130 PetriNetUnfolder]: 211/820 cut-off events. [2022-11-02 20:08:02,105 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:08:02,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 820 events. 211/820 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3876 event pairs, 135 based on Foata normal form. 0/746 useless extension candidates. Maximal degree in co-relation 1197. Up to 418 conditions per place. [2022-11-02 20:08:02,111 INFO L137 encePairwiseOnDemand]: 169/180 looper letters, 68 selfloop transitions, 22 changer transitions 0/207 dead transitions. [2022-11-02 20:08:02,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 207 transitions, 606 flow [2022-11-02 20:08:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:08:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:08:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 811 transitions. [2022-11-02 20:08:02,115 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7509259259259259 [2022-11-02 20:08:02,115 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 811 transitions. [2022-11-02 20:08:02,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 811 transitions. [2022-11-02 20:08:02,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:02,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 811 transitions. [2022-11-02 20:08:02,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.16666666666666) internal successors, (811), 6 states have internal predecessors, (811), 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) [2022-11-02 20:08:02,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:02,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:02,122 INFO L175 Difference]: Start difference. First operand has 177 places, 173 transitions, 358 flow. Second operand 6 states and 811 transitions. [2022-11-02 20:08:02,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 207 transitions, 606 flow [2022-11-02 20:08:02,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 207 transitions, 606 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:08:02,128 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 508 flow [2022-11-02 20:08:02,128 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2022-11-02 20:08:02,131 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 4 predicate places. [2022-11-02 20:08:02,131 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 508 flow [2022-11-02 20:08:02,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 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) [2022-11-02 20:08:02,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:02,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:02,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:08:02,133 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:02,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:02,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1742525625, now seen corresponding path program 1 times [2022-11-02 20:08:02,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:02,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160185105] [2022-11-02 20:08:02,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:02,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:02,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:02,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160185105] [2022-11-02 20:08:02,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160185105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:02,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:02,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:02,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031278899] [2022-11-02 20:08:02,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:02,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:08:02,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:02,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:08:02,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:08:02,809 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 180 [2022-11-02 20:08:02,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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) [2022-11-02 20:08:02,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:02,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 180 [2022-11-02 20:08:02,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:03,570 INFO L130 PetriNetUnfolder]: 409/1307 cut-off events. [2022-11-02 20:08:03,570 INFO L131 PetriNetUnfolder]: For 264/274 co-relation queries the response was YES. [2022-11-02 20:08:03,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2657 conditions, 1307 events. 409/1307 cut-off events. For 264/274 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6829 event pairs, 122 based on Foata normal form. 3/1210 useless extension candidates. Maximal degree in co-relation 2530. Up to 690 conditions per place. [2022-11-02 20:08:03,579 INFO L137 encePairwiseOnDemand]: 157/180 looper letters, 102 selfloop transitions, 84 changer transitions 4/306 dead transitions. [2022-11-02 20:08:03,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 306 transitions, 1232 flow [2022-11-02 20:08:03,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:08:03,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:08:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2022-11-02 20:08:03,582 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8083333333333333 [2022-11-02 20:08:03,583 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2022-11-02 20:08:03,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2022-11-02 20:08:03,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:03,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2022-11-02 20:08:03,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2022-11-02 20:08:03,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:03,588 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:03,588 INFO L175 Difference]: Start difference. First operand has 187 places, 194 transitions, 508 flow. Second operand 6 states and 873 transitions. [2022-11-02 20:08:03,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 306 transitions, 1232 flow [2022-11-02 20:08:03,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 306 transitions, 1232 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:08:03,602 INFO L231 Difference]: Finished difference. Result has 197 places, 273 transitions, 1154 flow [2022-11-02 20:08:03,603 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1154, PETRI_PLACES=197, PETRI_TRANSITIONS=273} [2022-11-02 20:08:03,603 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 14 predicate places. [2022-11-02 20:08:03,603 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 273 transitions, 1154 flow [2022-11-02 20:08:03,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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) [2022-11-02 20:08:03,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:03,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:03,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:08:03,605 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:03,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash -852845884, now seen corresponding path program 1 times [2022-11-02 20:08:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:03,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125007506] [2022-11-02 20:08:03,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:04,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:04,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125007506] [2022-11-02 20:08:04,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125007506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:04,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:04,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:08:04,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517020918] [2022-11-02 20:08:04,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:04,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:08:04,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:04,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:08:04,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:08:04,155 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 180 [2022-11-02 20:08:04,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 273 transitions, 1154 flow. Second operand has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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) [2022-11-02 20:08:04,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:04,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 180 [2022-11-02 20:08:04,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:04,583 INFO L130 PetriNetUnfolder]: 408/1337 cut-off events. [2022-11-02 20:08:04,584 INFO L131 PetriNetUnfolder]: For 930/949 co-relation queries the response was YES. [2022-11-02 20:08:04,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3662 conditions, 1337 events. 408/1337 cut-off events. For 930/949 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7315 event pairs, 97 based on Foata normal form. 0/1283 useless extension candidates. Maximal degree in co-relation 3529. Up to 782 conditions per place. [2022-11-02 20:08:04,596 INFO L137 encePairwiseOnDemand]: 169/180 looper letters, 160 selfloop transitions, 37 changer transitions 0/313 dead transitions. [2022-11-02 20:08:04,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 313 transitions, 1762 flow [2022-11-02 20:08:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:08:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:08:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 800 transitions. [2022-11-02 20:08:04,600 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2022-11-02 20:08:04,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 800 transitions. [2022-11-02 20:08:04,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 800 transitions. [2022-11-02 20:08:04,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:04,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 800 transitions. [2022-11-02 20:08:04,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 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) [2022-11-02 20:08:04,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:04,606 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 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) [2022-11-02 20:08:04,606 INFO L175 Difference]: Start difference. First operand has 197 places, 273 transitions, 1154 flow. Second operand 6 states and 800 transitions. [2022-11-02 20:08:04,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 313 transitions, 1762 flow [2022-11-02 20:08:04,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 313 transitions, 1744 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:08:04,626 INFO L231 Difference]: Finished difference. Result has 207 places, 300 transitions, 1478 flow [2022-11-02 20:08:04,627 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1478, PETRI_PLACES=207, PETRI_TRANSITIONS=300} [2022-11-02 20:08:04,629 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 24 predicate places. [2022-11-02 20:08:04,630 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 300 transitions, 1478 flow [2022-11-02 20:08:04,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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) [2022-11-02 20:08:04,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:04,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:04,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:08:04,631 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:04,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash 284735950, now seen corresponding path program 1 times [2022-11-02 20:08:04,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:04,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516806248] [2022-11-02 20:08:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:04,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:08:04,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:08:04,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:08:04,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516806248] [2022-11-02 20:08:04,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516806248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:08:04,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:08:04,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:08:04,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369714402] [2022-11-02 20:08:04,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:08:04,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:08:04,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:08:04,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:08:04,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:08:04,840 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 180 [2022-11-02 20:08:04,842 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 300 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2022-11-02 20:08:04,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:08:04,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 180 [2022-11-02 20:08:04,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:08:05,105 INFO L130 PetriNetUnfolder]: 256/1055 cut-off events. [2022-11-02 20:08:05,105 INFO L131 PetriNetUnfolder]: For 849/867 co-relation queries the response was YES. [2022-11-02 20:08:05,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 1055 events. 256/1055 cut-off events. For 849/867 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5519 event pairs, 17 based on Foata normal form. 4/1035 useless extension candidates. Maximal degree in co-relation 2511. Up to 257 conditions per place. [2022-11-02 20:08:05,116 INFO L137 encePairwiseOnDemand]: 175/180 looper letters, 11 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2022-11-02 20:08:05,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 303 transitions, 1516 flow [2022-11-02 20:08:05,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:08:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:08:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2022-11-02 20:08:05,118 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9611111111111111 [2022-11-02 20:08:05,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2022-11-02 20:08:05,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2022-11-02 20:08:05,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:08:05,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2022-11-02 20:08:05,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 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) [2022-11-02 20:08:05,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:05,122 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2022-11-02 20:08:05,122 INFO L175 Difference]: Start difference. First operand has 207 places, 300 transitions, 1478 flow. Second operand 3 states and 519 transitions. [2022-11-02 20:08:05,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 303 transitions, 1516 flow [2022-11-02 20:08:05,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 303 transitions, 1460 flow, removed 28 selfloop flow, removed 0 redundant places. [2022-11-02 20:08:05,145 INFO L231 Difference]: Finished difference. Result has 210 places, 302 transitions, 1445 flow [2022-11-02 20:08:05,145 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1445, PETRI_PLACES=210, PETRI_TRANSITIONS=302} [2022-11-02 20:08:05,146 INFO L287 CegarLoopForPetriNet]: 183 programPoint places, 27 predicate places. [2022-11-02 20:08:05,147 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 302 transitions, 1445 flow [2022-11-02 20:08:05,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2022-11-02 20:08:05,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:08:05,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:05,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:08:05,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-02 20:08:05,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:08:05,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2023621152, now seen corresponding path program 2 times [2022-11-02 20:08:05,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:08:05,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298673099] [2022-11-02 20:08:05,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:08:05,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:08:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:08:05,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:08:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:08:05,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:08:05,315 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:08:05,316 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-11-02 20:08:05,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-11-02 20:08:05,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-11-02 20:08:05,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-11-02 20:08:05,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-11-02 20:08:05,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-11-02 20:08:05,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-11-02 20:08:05,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-11-02 20:08:05,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-11-02 20:08:05,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2022-11-02 20:08:05,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-11-02 20:08:05,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2022-11-02 20:08:05,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2022-11-02 20:08:05,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-11-02 20:08:05,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-11-02 20:08:05,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-11-02 20:08:05,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-11-02 20:08:05,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-11-02 20:08:05,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-11-02 20:08:05,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-11-02 20:08:05,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-11-02 20:08:05,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:08:05,329 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:08:05,337 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:08:05,337 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:08:05,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:08:05 BasicIcfg [2022-11-02 20:08:05,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:08:05,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:08:05,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:08:05,412 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:08:05,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:07:57" (3/4) ... [2022-11-02 20:08:05,416 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:08:05,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:08:05,417 INFO L158 Benchmark]: Toolchain (without parser) took 9220.77ms. Allocated memory was 115.3MB in the beginning and 270.5MB in the end (delta: 155.2MB). Free memory was 73.0MB in the beginning and 122.1MB in the end (delta: -49.1MB). Peak memory consumption was 105.4MB. Max. memory is 16.1GB. [2022-11-02 20:08:05,417 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:05,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.75ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 61.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:08:05,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.72ms. Allocated memory is still 115.3MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 20:08:05,418 INFO L158 Benchmark]: Boogie Preprocessor took 71.92ms. Allocated memory is still 115.3MB. Free memory was 58.5MB in the beginning and 55.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:08:05,418 INFO L158 Benchmark]: RCFGBuilder took 830.14ms. Allocated memory is still 115.3MB. Free memory was 55.9MB in the beginning and 82.4MB in the end (delta: -26.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 20:08:05,419 INFO L158 Benchmark]: TraceAbstraction took 7443.68ms. Allocated memory was 115.3MB in the beginning and 270.5MB in the end (delta: 155.2MB). Free memory was 81.7MB in the beginning and 123.2MB in the end (delta: -41.5MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. [2022-11-02 20:08:05,419 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 270.5MB. Free memory was 123.2MB in the beginning and 122.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:08:05,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.75ms. Allocated memory is still 115.3MB. Free memory was 72.8MB in the beginning and 61.7MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.72ms. Allocated memory is still 115.3MB. Free memory was 61.5MB in the beginning and 58.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.92ms. Allocated memory is still 115.3MB. Free memory was 58.5MB in the beginning and 55.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 830.14ms. Allocated memory is still 115.3MB. Free memory was 55.9MB in the beginning and 82.4MB in the end (delta: -26.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7443.68ms. Allocated memory was 115.3MB in the beginning and 270.5MB in the end (delta: 155.2MB). Free memory was 81.7MB in the beginning and 123.2MB in the end (delta: -41.5MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 270.5MB. Free memory was 123.2MB in the beginning and 122.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; VAL [A={0:0}, B={0:0}] [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}] [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}] [L1245] 0 pthread_t t1; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, t1={9:0}] [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}, x=3] [L1229] 0 p->datum = x VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1230] 0 p->next = ((void *)0) VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1231] 0 return p; VAL [\old(x)=3, \result={-2:0}, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) VAL [A={-2:0}, A = new(3)=58, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, new(3)={-2:0}, t1={9:0}] [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, malloc(sizeof(struct s))={-3:0}, p={-3:0}, x=5] [L1229] 0 p->datum = x VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1230] 0 p->next = ((void *)0) VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1231] 0 return p; VAL [\old(x)=5, \result={-3:0}, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B = new(5)=44, B_mutex={2:0}, new(5)={-3:0}, t1={9:0}] [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, t1={9:0}] [L1251] EXPR 0 A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, t1={9:0}] [L1251] 0 data = &A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] EXPR 1 A->datum VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1253] 0 *data = 42 VAL [*data = 42=46, A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: B = new(5) [1247] * C: A = new(3) [1246] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: *data = 42 [1253] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 236 locations, 21 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: 7.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1092 IncrementalHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 299 mSDtfsCounter, 1092 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1478occurred in iteration=8, InterpolantAutomatonStates: 42, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 900 NumberOfCodeBlocks, 900 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 773 ConstructedInterpolants, 0 QuantifiedInterpolants, 1234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 20:08:05,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52a4e25-1af7-4ba6-8bf0-cf3372a07a0c/bin/uautomizer-Dbtcem3rbc/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE