./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8 --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 fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 --- 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-e04fb08 [2022-11-16 12:01:26,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:01:26,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:01:27,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:01:27,045 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:01:27,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:01:27,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:01:27,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:01:27,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:01:27,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:01:27,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:01:27,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:01:27,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:01:27,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:01:27,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:01:27,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:01:27,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:01:27,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:01:27,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:01:27,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:01:27,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:01:27,101 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:01:27,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:01:27,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:01:27,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:01:27,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:01:27,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:01:27,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:01:27,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:01:27,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:01:27,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:01:27,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:01:27,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:01:27,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:01:27,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:01:27,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:01:27,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:01:27,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:01:27,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:01:27,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:01:27,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:01:27,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:01:27,201 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:01:27,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:01:27,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:01:27,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:01:27,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:01:27,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:01:27,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:01:27,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:01:27,207 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:01:27,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:01:27,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:01:27,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:01:27,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:01:27,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:01:27,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:01:27,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:01:27,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:01:27,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:01:27,212 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:01:27,213 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:01:27,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:01:27,213 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:01:27,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:01:27,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:01:27,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:01:27,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:01:27,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:27,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:01:27,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:01:27,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:01:27,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:01:27,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:01:27,218 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:01:27,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:01:27,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:01:27,219 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_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd55bbfa1518dd7815f07d7de8c2030374bbc7b7998290c12df563b95f65f709 [2022-11-16 12:01:27,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:01:27,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:01:27,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:01:27,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:01:27,695 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:01:27,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i [2022-11-16 12:01:27,793 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/data/6fb04f284/280dd38c7532411a99c78b030f138a45/FLAG22d8c484a [2022-11-16 12:01:28,597 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:01:28,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/sv-benchmarks/c/goblint-regression/06-symbeq_10-equ_rc.i [2022-11-16 12:01:28,617 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/data/6fb04f284/280dd38c7532411a99c78b030f138a45/FLAG22d8c484a [2022-11-16 12:01:28,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/data/6fb04f284/280dd38c7532411a99c78b030f138a45 [2022-11-16 12:01:28,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:01:28,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:01:28,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:28,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:01:28,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:01:28,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:28" (1/1) ... [2022-11-16 12:01:28,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6072431b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:28, skipping insertion in model container [2022-11-16 12:01:28,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:28" (1/1) ... [2022-11-16 12:01:28,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:01:28,879 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:01:29,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:29,618 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:01:29,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:29,731 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:01:29,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29 WrapperNode [2022-11-16 12:01:29,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:29,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:29,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:01:29,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:01:29,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,833 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 68 [2022-11-16 12:01:29,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:29,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:01:29,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:01:29,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:01:29,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:01:29,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:01:29,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:01:29,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:01:29,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (1/1) ... [2022-11-16 12:01:29,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:29,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:29,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:01:29,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:01:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:01:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:01:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:01:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:01:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:01:30,008 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:01:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:01:30,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:01:30,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:01:30,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:01:30,013 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:01:30,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:01:30,183 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:01:30,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:01:30,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:01:30,473 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:01:30,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:30 BoogieIcfgContainer [2022-11-16 12:01:30,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:01:30,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:01:30,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:01:30,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:01:30,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:28" (1/3) ... [2022-11-16 12:01:30,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b2086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:30, skipping insertion in model container [2022-11-16 12:01:30,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:29" (2/3) ... [2022-11-16 12:01:30,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b2086f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:30, skipping insertion in model container [2022-11-16 12:01:30,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:30" (3/3) ... [2022-11-16 12:01:30,486 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_10-equ_rc.i [2022-11-16 12:01:30,497 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:01:30,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:01:30,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:01:30,511 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:01:30,623 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:01:30,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 183 flow [2022-11-16 12:01:30,813 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-11-16 12:01:30,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:01:30,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 1/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2022-11-16 12:01:30,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 89 transitions, 183 flow [2022-11-16 12:01:30,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 88 transitions, 179 flow [2022-11-16 12:01:30,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:01:30,846 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;@3f305301, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:01:30,847 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 12:01:30,901 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-11-16 12:01:30,907 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:01:30,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:30,909 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] [2022-11-16 12:01:30,910 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)] === [2022-11-16 12:01:30,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:30,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1893546033, now seen corresponding path program 1 times [2022-11-16 12:01:30,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:30,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583221930] [2022-11-16 12:01:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:30,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:32,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:32,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583221930] [2022-11-16 12:01:32,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583221930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:32,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:32,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:32,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068528694] [2022-11-16 12:01:32,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:32,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:32,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:32,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:32,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:32,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 89 [2022-11-16 12:01:32,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2022-11-16 12:01:32,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:32,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 89 [2022-11-16 12:01:32,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:32,830 INFO L130 PetriNetUnfolder]: 79/316 cut-off events. [2022-11-16 12:01:32,831 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:01:32,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 316 events. 79/316 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1201 event pairs, 20 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 439. Up to 138 conditions per place. [2022-11-16 12:01:32,839 INFO L137 encePairwiseOnDemand]: 78/89 looper letters, 30 selfloop transitions, 22 changer transitions 4/117 dead transitions. [2022-11-16 12:01:32,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 117 transitions, 349 flow [2022-11-16 12:01:32,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:32,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:32,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 429 transitions. [2022-11-16 12:01:32,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8033707865168539 [2022-11-16 12:01:32,863 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 429 transitions. [2022-11-16 12:01:32,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 429 transitions. [2022-11-16 12:01:32,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:32,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 429 transitions. [2022-11-16 12:01:32,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2022-11-16 12:01:32,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2022-11-16 12:01:32,893 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2022-11-16 12:01:32,895 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 179 flow. Second operand 6 states and 429 transitions. [2022-11-16 12:01:32,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 117 transitions, 349 flow [2022-11-16 12:01:32,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 117 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:01:32,907 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 328 flow [2022-11-16 12:01:32,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2022-11-16 12:01:32,918 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 9 predicate places. [2022-11-16 12:01:32,919 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 328 flow [2022-11-16 12:01:32,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 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) [2022-11-16 12:01:32,920 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:32,921 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] [2022-11-16 12:01:32,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:01:32,922 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)] === [2022-11-16 12:01:32,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1424353823, now seen corresponding path program 1 times [2022-11-16 12:01:32,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:32,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463766600] [2022-11-16 12:01:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:33,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:33,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463766600] [2022-11-16 12:01:33,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463766600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:33,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:33,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:33,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502950831] [2022-11-16 12:01:33,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:33,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:33,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:33,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:33,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:33,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2022-11-16 12:01:33,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2022-11-16 12:01:33,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:33,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2022-11-16 12:01:33,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:33,864 INFO L130 PetriNetUnfolder]: 114/404 cut-off events. [2022-11-16 12:01:33,865 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-11-16 12:01:33,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 404 events. 114/404 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1750 event pairs, 17 based on Foata normal form. 0/392 useless extension candidates. Maximal degree in co-relation 883. Up to 184 conditions per place. [2022-11-16 12:01:33,880 INFO L137 encePairwiseOnDemand]: 78/89 looper letters, 38 selfloop transitions, 26 changer transitions 11/145 dead transitions. [2022-11-16 12:01:33,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 145 transitions, 646 flow [2022-11-16 12:01:33,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 469 transitions. [2022-11-16 12:01:33,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8782771535580525 [2022-11-16 12:01:33,887 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 469 transitions. [2022-11-16 12:01:33,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 469 transitions. [2022-11-16 12:01:33,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:33,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 469 transitions. [2022-11-16 12:01:33,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.16666666666667) internal successors, (469), 6 states have internal predecessors, (469), 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) [2022-11-16 12:01:33,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2022-11-16 12:01:33,894 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 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) [2022-11-16 12:01:33,894 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 328 flow. Second operand 6 states and 469 transitions. [2022-11-16 12:01:33,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 145 transitions, 646 flow [2022-11-16 12:01:33,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 145 transitions, 646 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:33,909 INFO L231 Difference]: Finished difference. Result has 110 places, 130 transitions, 552 flow [2022-11-16 12:01:33,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=110, PETRI_TRANSITIONS=130} [2022-11-16 12:01:33,911 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2022-11-16 12:01:33,911 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 130 transitions, 552 flow [2022-11-16 12:01:33,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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) [2022-11-16 12:01:33,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:33,912 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] [2022-11-16 12:01:33,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:01:33,913 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)] === [2022-11-16 12:01:33,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash 741734705, now seen corresponding path program 1 times [2022-11-16 12:01:33,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:33,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206949860] [2022-11-16 12:01:33,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:33,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:34,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:34,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206949860] [2022-11-16 12:01:34,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206949860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:34,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:34,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:01:34,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753397417] [2022-11-16 12:01:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:34,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:01:34,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:01:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:01:34,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2022-11-16 12:01:34,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 130 transitions, 552 flow. Second operand has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2022-11-16 12:01:34,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:34,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2022-11-16 12:01:34,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:35,519 INFO L130 PetriNetUnfolder]: 260/866 cut-off events. [2022-11-16 12:01:35,519 INFO L131 PetriNetUnfolder]: For 611/611 co-relation queries the response was YES. [2022-11-16 12:01:35,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 866 events. 260/866 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5414 event pairs, 68 based on Foata normal form. 11/872 useless extension candidates. Maximal degree in co-relation 1564. Up to 286 conditions per place. [2022-11-16 12:01:35,527 INFO L137 encePairwiseOnDemand]: 74/89 looper letters, 141 selfloop transitions, 35 changer transitions 19/238 dead transitions. [2022-11-16 12:01:35,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 238 transitions, 1624 flow [2022-11-16 12:01:35,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:01:35,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:01:35,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 576 transitions. [2022-11-16 12:01:35,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5883554647599591 [2022-11-16 12:01:35,532 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 576 transitions. [2022-11-16 12:01:35,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 576 transitions. [2022-11-16 12:01:35,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:35,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 576 transitions. [2022-11-16 12:01:35,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 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) [2022-11-16 12:01:35,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2022-11-16 12:01:35,538 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2022-11-16 12:01:35,539 INFO L175 Difference]: Start difference. First operand has 110 places, 130 transitions, 552 flow. Second operand 11 states and 576 transitions. [2022-11-16 12:01:35,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 238 transitions, 1624 flow [2022-11-16 12:01:35,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 238 transitions, 1588 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:35,558 INFO L231 Difference]: Finished difference. Result has 128 places, 161 transitions, 949 flow [2022-11-16 12:01:35,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=949, PETRI_PLACES=128, PETRI_TRANSITIONS=161} [2022-11-16 12:01:35,560 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 37 predicate places. [2022-11-16 12:01:35,560 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 161 transitions, 949 flow [2022-11-16 12:01:35,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2022-11-16 12:01:35,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:35,561 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] [2022-11-16 12:01:35,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:01:35,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:01:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1865510404, now seen corresponding path program 1 times [2022-11-16 12:01:35,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:35,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502414154] [2022-11-16 12:01:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:36,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:36,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502414154] [2022-11-16 12:01:36,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502414154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:36,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:36,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:01:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823128710] [2022-11-16 12:01:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:36,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:01:36,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:36,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:01:36,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:01:36,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2022-11-16 12:01:36,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 161 transitions, 949 flow. Second operand has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2022-11-16 12:01:36,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:36,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2022-11-16 12:01:36,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:36,997 INFO L130 PetriNetUnfolder]: 251/835 cut-off events. [2022-11-16 12:01:36,997 INFO L131 PetriNetUnfolder]: For 1089/1089 co-relation queries the response was YES. [2022-11-16 12:01:37,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 835 events. 251/835 cut-off events. For 1089/1089 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5045 event pairs, 63 based on Foata normal form. 11/841 useless extension candidates. Maximal degree in co-relation 2156. Up to 285 conditions per place. [2022-11-16 12:01:37,005 INFO L137 encePairwiseOnDemand]: 74/89 looper letters, 85 selfloop transitions, 8 changer transitions 116/248 dead transitions. [2022-11-16 12:01:37,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 248 transitions, 1973 flow [2022-11-16 12:01:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:01:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:01:37,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 581 transitions. [2022-11-16 12:01:37,009 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5934627170582226 [2022-11-16 12:01:37,009 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 581 transitions. [2022-11-16 12:01:37,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 581 transitions. [2022-11-16 12:01:37,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:37,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 581 transitions. [2022-11-16 12:01:37,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.81818181818182) internal successors, (581), 11 states have internal predecessors, (581), 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) [2022-11-16 12:01:37,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2022-11-16 12:01:37,015 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 89.0) internal successors, (1068), 12 states have internal predecessors, (1068), 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) [2022-11-16 12:01:37,015 INFO L175 Difference]: Start difference. First operand has 128 places, 161 transitions, 949 flow. Second operand 11 states and 581 transitions. [2022-11-16 12:01:37,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 248 transitions, 1973 flow [2022-11-16 12:01:37,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 248 transitions, 1970 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:01:37,050 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 744 flow [2022-11-16 12:01:37,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=744, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-16 12:01:37,053 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 51 predicate places. [2022-11-16 12:01:37,053 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 744 flow [2022-11-16 12:01:37,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 46.36363636363637) internal successors, (510), 11 states have internal predecessors, (510), 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) [2022-11-16 12:01:37,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:37,056 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] [2022-11-16 12:01:37,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:01:37,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:01:37,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:37,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2121394182, now seen corresponding path program 1 times [2022-11-16 12:01:37,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:37,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727123370] [2022-11-16 12:01:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:37,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:01:37,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:01:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:01:37,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:01:37,188 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:01:37,189 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-16 12:01:37,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2022-11-16 12:01:37,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-16 12:01:37,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-16 12:01:37,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:01:37,193 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 12:01:37,200 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:01:37,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:01:37,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:01:37 BasicIcfg [2022-11-16 12:01:37,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:01:37,293 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:01:37,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:01:37,294 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:01:37,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:30" (3/4) ... [2022-11-16 12:01:37,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:01:37,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:01:37,302 INFO L158 Benchmark]: Toolchain (without parser) took 8538.66ms. Allocated memory was 109.1MB in the beginning and 182.5MB in the end (delta: 73.4MB). Free memory was 63.4MB in the beginning and 88.6MB in the end (delta: -25.2MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2022-11-16 12:01:37,305 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:01:37,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 967.87ms. Allocated memory is still 109.1MB. Free memory was 63.2MB in the beginning and 66.5MB in the end (delta: -3.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-11-16 12:01:37,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.25ms. Allocated memory is still 109.1MB. Free memory was 66.5MB in the beginning and 64.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:01:37,307 INFO L158 Benchmark]: Boogie Preprocessor took 70.64ms. Allocated memory is still 109.1MB. Free memory was 64.1MB in the beginning and 62.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:01:37,307 INFO L158 Benchmark]: RCFGBuilder took 567.01ms. Allocated memory is still 109.1MB. Free memory was 62.6MB in the beginning and 48.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 12:01:37,310 INFO L158 Benchmark]: TraceAbstraction took 6814.99ms. Allocated memory was 109.1MB in the beginning and 182.5MB in the end (delta: 73.4MB). Free memory was 47.3MB in the beginning and 88.6MB in the end (delta: -41.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2022-11-16 12:01:37,312 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 182.5MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:01:37,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 967.87ms. Allocated memory is still 109.1MB. Free memory was 63.2MB in the beginning and 66.5MB in the end (delta: -3.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.25ms. Allocated memory is still 109.1MB. Free memory was 66.5MB in the beginning and 64.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.64ms. Allocated memory is still 109.1MB. Free memory was 64.1MB in the beginning and 62.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 567.01ms. Allocated memory is still 109.1MB. Free memory was 62.6MB in the beginning and 48.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6814.99ms. Allocated memory was 109.1MB in the beginning and 182.5MB in the end (delta: 73.4MB). Free memory was 47.3MB in the beginning and 88.6MB in the end (delta: -41.2MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 182.5MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 996]: Data race detected Data race detected The following path leads to a data race: [L989-L993] 0 struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; VAL [A={1:0}, B={2:0}] [L1003] 0 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={1:0}, B={2:0}, x=0] [L1004] 0 pthread_t id; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1005] 0 struct s *s; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1006] 0 int *d; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1007] 0 pthread_mutex_t *m; VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1008] COND FALSE 0 !(\read(x)) VAL [A={1:0}, B={2:0}, id={6:0}, x=0] [L1012] 0 s = &B VAL [A={1:0}, B={2:0}, id={6:0}, s={2:0}, x=0] [L1013] 0 x++ VAL [A={1:0}, B={2:0}, id={6:0}, s={2:0}, x=1] [L1015] 0 m = &s->mutex VAL [A={1:0}, B={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L1016] 0 d = &s->datum VAL [A={1:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L1017] FCALL, FORK 0 pthread_create(&id,((void *)0),t_fun,((void *)0)) VAL [A={1:0}, arg={0:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, pthread_create(&id,((void *)0),t_fun,((void *)0))=-1, s={2:0}, x=1] [L1019] 0 *d = 8 VAL [A={1:0}, arg={0:0}, B={2:0}, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38] [L1019] 0 *d = 8 VAL [*d = 8=37, A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38, d={2:0}, id={6:0}, m={2:12}, s={2:0}, x=1] [L996] 1 B.datum = 5 VAL [A={1:0}, arg={0:0}, arg={0:0}, B={2:0}, B.datum = 5=38] Now there is a data race (on the heap) between C: *d = 8 [1019] and C: B.datum = 5 [996] - UnprovableResult [Line: 1019]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1017]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, 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: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 953 IncrementalHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 49 mSDtfsCounter, 953 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=949occurred in iteration=3, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:01:37,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2f10803-27a6-40c3-8099-590761ecfc23/bin/uautomizer-tPACEb0tL8/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