./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro --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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- 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-8393723 [2022-11-18 20:04:43,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:04:43,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:04:43,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:04:43,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:04:43,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:04:43,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:04:43,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:04:43,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:04:43,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:04:43,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:04:43,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:04:43,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:04:43,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:04:43,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:04:43,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:04:43,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:04:43,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:04:43,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:04:43,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:04:43,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:04:43,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:04:43,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:04:43,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:04:43,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:04:43,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:04:43,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:04:43,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:04:43,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:04:43,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:04:43,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:04:43,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:04:43,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:04:43,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:04:43,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:04:43,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:04:43,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:04:43,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:04:43,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:04:43,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:04:43,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:04:43,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:04:43,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:04:43,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:04:43,208 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:04:43,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:04:43,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:04:43,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:04:43,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:04:43,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:04:43,211 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:04:43,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:04:43,212 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:04:43,212 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:04:43,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:04:43,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:04:43,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:04:43,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:04:43,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:04:43,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:04:43,214 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:04:43,214 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:04:43,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:04:43,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:04:43,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:04:43,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:04:43,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:04:43,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:04:43,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:43,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:04:43,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:04:43,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:04:43,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:04:43,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:04:43,217 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:04:43,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:04:43,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:04:43,218 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_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2022-11-18 20:04:43,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:04:43,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:04:43,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:04:43,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:04:43,610 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:04:43,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-18 20:04:43,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/data/8afcd3307/f901b007431b4985ae2c14fcbbf8139b/FLAG7e4017c8b [2022-11-18 20:04:44,444 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:04:44,445 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-18 20:04:44,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/data/8afcd3307/f901b007431b4985ae2c14fcbbf8139b/FLAG7e4017c8b [2022-11-18 20:04:44,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/data/8afcd3307/f901b007431b4985ae2c14fcbbf8139b [2022-11-18 20:04:44,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:04:44,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:04:44,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:44,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:04:44,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:04:44,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:44" (1/1) ... [2022-11-18 20:04:44,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60221cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:44, skipping insertion in model container [2022-11-18 20:04:44,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:44" (1/1) ... [2022-11-18 20:04:44,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:04:44,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:04:45,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:45,364 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:04:45,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:45,495 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:04:45,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45 WrapperNode [2022-11-18 20:04:45,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:45,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:45,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:04:45,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:04:45,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,553 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2022-11-18 20:04:45,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:45,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:04:45,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:04:45,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:04:45,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:04:45,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:04:45,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:04:45,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:04:45,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (1/1) ... [2022-11-18 20:04:45,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:45,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:04:45,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:04:45,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:04:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:04:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:04:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:04:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:04:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:04:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:04:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:04:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:04:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:04:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:04:45,706 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:04:45,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:04:45,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:04:46,149 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:04:46,157 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:04:46,157 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:04:46,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:46 BoogieIcfgContainer [2022-11-18 20:04:46,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:04:46,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:04:46,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:04:46,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:04:46,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:04:44" (1/3) ... [2022-11-18 20:04:46,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59268332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:46, skipping insertion in model container [2022-11-18 20:04:46,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:45" (2/3) ... [2022-11-18 20:04:46,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59268332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:46, skipping insertion in model container [2022-11-18 20:04:46,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:46" (3/3) ... [2022-11-18 20:04:46,188 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2022-11-18 20:04:46,197 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:04:46,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:04:46,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:04:46,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:04:46,364 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:04:46,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 92 transitions, 189 flow [2022-11-18 20:04:46,556 INFO L130 PetriNetUnfolder]: 1/94 cut-off events. [2022-11-18 20:04:46,556 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:04:46,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 1/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-11-18 20:04:46,562 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 92 transitions, 189 flow [2022-11-18 20:04:46,571 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 89 transitions, 181 flow [2022-11-18 20:04:46,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:04:46,606 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;@34c78d3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:04:46,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:04:46,649 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2022-11-18 20:04:46,650 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:04:46,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:46,651 INFO L209 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] [2022-11-18 20:04:46,651 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-18 20:04:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -902666532, now seen corresponding path program 1 times [2022-11-18 20:04:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:46,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416002041] [2022-11-18 20:04:46,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:46,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:04:47,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:47,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416002041] [2022-11-18 20:04:47,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416002041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:47,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:47,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:04:47,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490278978] [2022-11-18 20:04:47,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:47,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:04:47,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:47,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:04:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:04:47,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 92 [2022-11-18 20:04:47,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 181 flow. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2022-11-18 20:04:47,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:47,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 92 [2022-11-18 20:04:47,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:48,331 INFO L130 PetriNetUnfolder]: 91/359 cut-off events. [2022-11-18 20:04:48,331 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:04:48,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 359 events. 91/359 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1531 event pairs, 32 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 507. Up to 164 conditions per place. [2022-11-18 20:04:48,339 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 32 selfloop transitions, 22 changer transitions 4/118 dead transitions. [2022-11-18 20:04:48,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 118 transitions, 355 flow [2022-11-18 20:04:48,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:04:48,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:04:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2022-11-18 20:04:48,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-18 20:04:48,372 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 437 transitions. [2022-11-18 20:04:48,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 437 transitions. [2022-11-18 20:04:48,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:48,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 437 transitions. [2022-11-18 20:04:48,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 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) [2022-11-18 20:04:48,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-18 20:04:48,402 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-18 20:04:48,405 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 181 flow. Second operand 6 states and 437 transitions. [2022-11-18 20:04:48,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 118 transitions, 355 flow [2022-11-18 20:04:48,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 118 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:04:48,417 INFO L231 Difference]: Finished difference. Result has 101 places, 110 transitions, 330 flow [2022-11-18 20:04:48,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=101, PETRI_TRANSITIONS=110} [2022-11-18 20:04:48,426 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2022-11-18 20:04:48,427 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 110 transitions, 330 flow [2022-11-18 20:04:48,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 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) [2022-11-18 20:04:48,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:48,429 INFO L209 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] [2022-11-18 20:04:48,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:04:48,431 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-18 20:04:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:48,432 INFO L85 PathProgramCache]: Analyzing trace with hash 398137758, now seen corresponding path program 1 times [2022-11-18 20:04:48,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:48,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163322444] [2022-11-18 20:04:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:48,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:49,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:04:49,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:49,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163322444] [2022-11-18 20:04:49,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163322444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:49,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:49,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:04:49,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194590554] [2022-11-18 20:04:49,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:49,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:04:49,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:49,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:04:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:04:49,073 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 92 [2022-11-18 20:04:49,076 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 110 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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) [2022-11-18 20:04:49,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:49,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 92 [2022-11-18 20:04:49,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:49,319 INFO L130 PetriNetUnfolder]: 114/405 cut-off events. [2022-11-18 20:04:49,320 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-11-18 20:04:49,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 405 events. 114/405 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1758 event pairs, 17 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 883. Up to 184 conditions per place. [2022-11-18 20:04:49,325 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 38 selfloop transitions, 26 changer transitions 11/146 dead transitions. [2022-11-18 20:04:49,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 146 transitions, 648 flow [2022-11-18 20:04:49,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:04:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:04:49,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2022-11-18 20:04:49,328 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8822463768115942 [2022-11-18 20:04:49,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2022-11-18 20:04:49,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2022-11-18 20:04:49,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:49,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2022-11-18 20:04:49,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 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) [2022-11-18 20:04:49,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-18 20:04:49,334 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-18 20:04:49,334 INFO L175 Difference]: Start difference. First operand has 101 places, 110 transitions, 330 flow. Second operand 6 states and 487 transitions. [2022-11-18 20:04:49,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 146 transitions, 648 flow [2022-11-18 20:04:49,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 146 transitions, 648 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:04:49,343 INFO L231 Difference]: Finished difference. Result has 111 places, 131 transitions, 554 flow [2022-11-18 20:04:49,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=554, PETRI_PLACES=111, PETRI_TRANSITIONS=131} [2022-11-18 20:04:49,344 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2022-11-18 20:04:49,344 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 131 transitions, 554 flow [2022-11-18 20:04:49,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 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) [2022-11-18 20:04:49,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:49,345 INFO L209 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] [2022-11-18 20:04:49,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:04:49,346 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-18 20:04:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1422047278, now seen corresponding path program 1 times [2022-11-18 20:04:49,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:49,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077248650] [2022-11-18 20:04:49,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:49,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:04:50,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:50,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077248650] [2022-11-18 20:04:50,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077248650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:50,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:50,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:04:50,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761205999] [2022-11-18 20:04:50,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:50,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:04:50,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:04:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:04:50,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 92 [2022-11-18 20:04:50,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 131 transitions, 554 flow. Second operand has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 7 states have internal predecessors, (460), 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) [2022-11-18 20:04:50,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:50,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 92 [2022-11-18 20:04:50,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:50,360 INFO L130 PetriNetUnfolder]: 98/439 cut-off events. [2022-11-18 20:04:50,360 INFO L131 PetriNetUnfolder]: For 331/347 co-relation queries the response was YES. [2022-11-18 20:04:50,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1187 conditions, 439 events. 98/439 cut-off events. For 331/347 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2127 event pairs, 23 based on Foata normal form. 8/440 useless extension candidates. Maximal degree in co-relation 952. Up to 157 conditions per place. [2022-11-18 20:04:50,367 INFO L137 encePairwiseOnDemand]: 85/92 looper letters, 48 selfloop transitions, 1 changer transitions 18/144 dead transitions. [2022-11-18 20:04:50,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 144 transitions, 734 flow [2022-11-18 20:04:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:04:50,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:04:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2022-11-18 20:04:50,370 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7554347826086957 [2022-11-18 20:04:50,370 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 417 transitions. [2022-11-18 20:04:50,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 417 transitions. [2022-11-18 20:04:50,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:50,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 417 transitions. [2022-11-18 20:04:50,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 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) [2022-11-18 20:04:50,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-18 20:04:50,378 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-18 20:04:50,378 INFO L175 Difference]: Start difference. First operand has 111 places, 131 transitions, 554 flow. Second operand 6 states and 417 transitions. [2022-11-18 20:04:50,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 144 transitions, 734 flow [2022-11-18 20:04:50,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 144 transitions, 716 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 20:04:50,398 INFO L231 Difference]: Finished difference. Result has 119 places, 126 transitions, 542 flow [2022-11-18 20:04:50,398 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=119, PETRI_TRANSITIONS=126} [2022-11-18 20:04:50,401 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, 27 predicate places. [2022-11-18 20:04:50,401 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 126 transitions, 542 flow [2022-11-18 20:04:50,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.71428571428571) internal successors, (460), 7 states have internal predecessors, (460), 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) [2022-11-18 20:04:50,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:50,403 INFO L209 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] [2022-11-18 20:04:50,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:04:50,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-18 20:04:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:50,405 INFO L85 PathProgramCache]: Analyzing trace with hash 374429993, now seen corresponding path program 1 times [2022-11-18 20:04:50,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:50,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943150137] [2022-11-18 20:04:50,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:04:51,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943150137] [2022-11-18 20:04:51,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943150137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:51,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:51,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:04:51,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801841790] [2022-11-18 20:04:51,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:51,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:04:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:04:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:04:51,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 92 [2022-11-18 20:04:51,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 126 transitions, 542 flow. Second operand has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 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) [2022-11-18 20:04:51,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:51,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 92 [2022-11-18 20:04:51,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:51,615 INFO L130 PetriNetUnfolder]: 130/468 cut-off events. [2022-11-18 20:04:51,615 INFO L131 PetriNetUnfolder]: For 327/329 co-relation queries the response was YES. [2022-11-18 20:04:51,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 468 events. 130/468 cut-off events. For 327/329 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2203 event pairs, 32 based on Foata normal form. 11/477 useless extension candidates. Maximal degree in co-relation 1391. Up to 113 conditions per place. [2022-11-18 20:04:51,620 INFO L137 encePairwiseOnDemand]: 82/92 looper letters, 80 selfloop transitions, 29 changer transitions 24/164 dead transitions. [2022-11-18 20:04:51,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 164 transitions, 1012 flow [2022-11-18 20:04:51,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:04:51,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:04:51,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 533 transitions. [2022-11-18 20:04:51,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5793478260869566 [2022-11-18 20:04:51,624 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 533 transitions. [2022-11-18 20:04:51,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 533 transitions. [2022-11-18 20:04:51,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:51,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 533 transitions. [2022-11-18 20:04:51,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.3) internal successors, (533), 10 states have internal predecessors, (533), 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) [2022-11-18 20:04:51,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-11-18 20:04:51,630 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-11-18 20:04:51,630 INFO L175 Difference]: Start difference. First operand has 119 places, 126 transitions, 542 flow. Second operand 10 states and 533 transitions. [2022-11-18 20:04:51,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 164 transitions, 1012 flow [2022-11-18 20:04:51,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 164 transitions, 1005 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-18 20:04:51,641 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 543 flow [2022-11-18 20:04:51,641 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=543, PETRI_PLACES=117, PETRI_TRANSITIONS=113} [2022-11-18 20:04:51,642 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, 25 predicate places. [2022-11-18 20:04:51,643 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 543 flow [2022-11-18 20:04:51,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 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) [2022-11-18 20:04:51,643 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:04:51,644 INFO L209 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] [2022-11-18 20:04:51,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:04:51,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-18 20:04:51,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:51,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1227058476, now seen corresponding path program 1 times [2022-11-18 20:04:51,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:51,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082370541] [2022-11-18 20:04:51,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:51,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:04:52,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:52,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082370541] [2022-11-18 20:04:52,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082370541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:52,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:52,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:04:52,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105755560] [2022-11-18 20:04:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:52,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:04:52,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:04:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:04:52,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 92 [2022-11-18 20:04:52,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 543 flow. Second operand has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 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) [2022-11-18 20:04:52,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:04:52,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 92 [2022-11-18 20:04:52,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:04:52,847 INFO L130 PetriNetUnfolder]: 76/268 cut-off events. [2022-11-18 20:04:52,847 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-18 20:04:52,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 268 events. 76/268 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 896 event pairs, 18 based on Foata normal form. 11/278 useless extension candidates. Maximal degree in co-relation 919. Up to 75 conditions per place. [2022-11-18 20:04:52,851 INFO L137 encePairwiseOnDemand]: 83/92 looper letters, 0 selfloop transitions, 0 changer transitions 151/151 dead transitions. [2022-11-18 20:04:52,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 151 transitions, 1033 flow [2022-11-18 20:04:52,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:04:52,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:04:52,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 534 transitions. [2022-11-18 20:04:52,854 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5804347826086956 [2022-11-18 20:04:52,855 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 534 transitions. [2022-11-18 20:04:52,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 534 transitions. [2022-11-18 20:04:52,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:04:52,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 534 transitions. [2022-11-18 20:04:52,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.4) internal successors, (534), 10 states have internal predecessors, (534), 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) [2022-11-18 20:04:52,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-11-18 20:04:52,862 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 92.0) internal successors, (1012), 11 states have internal predecessors, (1012), 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) [2022-11-18 20:04:52,862 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 543 flow. Second operand 10 states and 534 transitions. [2022-11-18 20:04:52,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 151 transitions, 1033 flow [2022-11-18 20:04:52,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 151 transitions, 862 flow, removed 24 selfloop flow, removed 11 redundant places. [2022-11-18 20:04:52,871 INFO L231 Difference]: Finished difference. Result has 105 places, 0 transitions, 0 flow [2022-11-18 20:04:52,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=105, PETRI_TRANSITIONS=0} [2022-11-18 20:04:52,875 INFO L288 CegarLoopForPetriNet]: 92 programPoint places, 13 predicate places. [2022-11-18 20:04:52,875 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 0 transitions, 0 flow [2022-11-18 20:04:52,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 49.36363636363637) internal successors, (543), 11 states have internal predecessors, (543), 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) [2022-11-18 20:04:52,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-18 20:04:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-18 20:04:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-18 20:04:52,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-18 20:04:52,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:04:52,881 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-18 20:04:52,888 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:04:52,888 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:04:52,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:04:52 BasicIcfg [2022-11-18 20:04:52,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:04:52,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:04:52,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:04:52,904 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:04:52,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:46" (3/4) ... [2022-11-18 20:04:52,909 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:04:52,916 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 20:04:52,924 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-18 20:04:52,924 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:04:52,924 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:04:52,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:04:52,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:04:52,982 INFO L158 Benchmark]: Toolchain (without parser) took 8332.93ms. Allocated memory was 111.1MB in the beginning and 169.9MB in the end (delta: 58.7MB). Free memory was 71.7MB in the beginning and 66.7MB in the end (delta: 5.0MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,983 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:04:52,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.88ms. Allocated memory is still 111.1MB. Free memory was 71.5MB in the beginning and 69.6MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.47ms. Allocated memory is still 111.1MB. Free memory was 69.6MB in the beginning and 67.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,984 INFO L158 Benchmark]: Boogie Preprocessor took 61.90ms. Allocated memory is still 111.1MB. Free memory was 67.2MB in the beginning and 65.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,984 INFO L158 Benchmark]: RCFGBuilder took 550.01ms. Allocated memory is still 111.1MB. Free memory was 65.5MB in the beginning and 50.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,985 INFO L158 Benchmark]: TraceAbstraction took 6734.31ms. Allocated memory was 111.1MB in the beginning and 169.9MB in the end (delta: 58.7MB). Free memory was 50.2MB in the beginning and 68.8MB in the end (delta: -18.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,985 INFO L158 Benchmark]: Witness Printer took 77.49ms. Allocated memory is still 169.9MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:52,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.88ms. Allocated memory is still 111.1MB. Free memory was 71.5MB in the beginning and 69.6MB in the end (delta: 1.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.47ms. Allocated memory is still 111.1MB. Free memory was 69.6MB in the beginning and 67.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.90ms. Allocated memory is still 111.1MB. Free memory was 67.2MB in the beginning and 65.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.01ms. Allocated memory is still 111.1MB. Free memory was 65.5MB in the beginning and 50.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6734.31ms. Allocated memory was 111.1MB in the beginning and 169.9MB in the end (delta: 58.7MB). Free memory was 50.2MB in the beginning and 68.8MB in the end (delta: -18.6MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 77.49ms. Allocated memory is still 169.9MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1022]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 996]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 108 locations, 4 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: 6.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 894 IncrementalHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 55 mSDtfsCounter, 894 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=2, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 1575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 20:04:53,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f9f0b81-4e17-4812-9a1c-57f8d0c3161a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE