./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN --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 a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 --- 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-6b4ec56 [2022-11-20 11:27:59,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:27:59,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:27:59,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:27:59,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:27:59,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:27:59,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:27:59,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:27:59,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:27:59,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:27:59,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:27:59,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:27:59,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:27:59,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:27:59,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:27:59,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:27:59,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:27:59,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:27:59,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:27:59,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:27:59,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:27:59,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:27:59,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:27:59,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:27:59,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:27:59,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:27:59,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:27:59,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:27:59,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:27:59,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:27:59,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:27:59,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:27:59,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:27:59,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:27:59,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:27:59,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:27:59,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:27:59,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:27:59,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:27:59,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:27:59,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:27:59,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:27:59,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:27:59,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:27:59,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:27:59,191 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:27:59,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:27:59,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:27:59,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:27:59,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:27:59,193 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:27:59,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:27:59,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:27:59,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:27:59,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:27:59,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:27:59,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:27:59,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:27:59,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:27:59,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:27:59,196 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:27:59,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:27:59,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:27:59,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:27:59,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:27:59,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:27:59,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:27:59,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:27:59,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:27:59,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:27:59,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:27:59,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:27:59,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:27:59,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:27:59,199 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:27:59,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:27:59,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:27:59,200 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_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 [2022-11-20 11:27:59,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:27:59,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:27:59,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:27:59,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:27:59,587 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:27:59,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2022-11-20 11:28:02,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:28:02,917 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:28:02,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2022-11-20 11:28:02,934 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/data/687337533/3a3f494ac704468697c09c8dd2b1c770/FLAGbe996e908 [2022-11-20 11:28:02,953 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/data/687337533/3a3f494ac704468697c09c8dd2b1c770 [2022-11-20 11:28:02,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:28:02,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:28:02,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:28:02,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:28:02,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:28:02,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:28:02" (1/1) ... [2022-11-20 11:28:02,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6b351e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:02, skipping insertion in model container [2022-11-20 11:28:02,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:28:02" (1/1) ... [2022-11-20 11:28:02,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:28:03,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:28:03,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:28:03,515 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:28:03,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:28:03,603 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:28:03,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03 WrapperNode [2022-11-20 11:28:03,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:28:03,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:28:03,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:28:03,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:28:03,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,663 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 46 [2022-11-20 11:28:03,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:28:03,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:28:03,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:28:03,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:28:03,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,727 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:28:03,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:28:03,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:28:03,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:28:03,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (1/1) ... [2022-11-20 11:28:03,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:28:03,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:28:03,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:28:03,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:28:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:28:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:28:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:28:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:28:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:28:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:28:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:28:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:28:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:28:03,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:28:03,832 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:28:04,000 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:28:04,002 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:28:04,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:28:04,206 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:28:04,207 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:28:04,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:04 BoogieIcfgContainer [2022-11-20 11:28:04,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:28:04,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:28:04,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:28:04,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:28:04,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:28:02" (1/3) ... [2022-11-20 11:28:04,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57c342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:28:04, skipping insertion in model container [2022-11-20 11:28:04,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:28:03" (2/3) ... [2022-11-20 11:28:04,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c57c342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:28:04, skipping insertion in model container [2022-11-20 11:28:04,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:04" (3/3) ... [2022-11-20 11:28:04,221 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2022-11-20 11:28:04,234 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:28:04,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:28:04,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 11:28:04,244 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:28:04,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 11:28:04,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 75 transitions, 155 flow [2022-11-20 11:28:04,468 INFO L130 PetriNetUnfolder]: 1/74 cut-off events. [2022-11-20 11:28:04,474 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:28:04,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 1/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-11-20 11:28:04,478 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 75 transitions, 155 flow [2022-11-20 11:28:04,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 74 transitions, 151 flow [2022-11-20 11:28:04,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:28:04,500 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;@5b7ef6f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:28:04,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 11:28:04,513 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2022-11-20 11:28:04,513 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:28:04,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:28:04,515 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] [2022-11-20 11:28:04,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:28:04,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2133241789, now seen corresponding path program 1 times [2022-11-20 11:28:04,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:04,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16266696] [2022-11-20 11:28:04,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:04,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:05,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:28:05,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:05,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16266696] [2022-11-20 11:28:05,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16266696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:05,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:05,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:05,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911817482] [2022-11-20 11:28:05,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:05,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:05,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:05,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:05,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:05,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 75 [2022-11-20 11:28:05,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 151 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2022-11-20 11:28:05,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:28:05,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 75 [2022-11-20 11:28:05,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:28:05,993 INFO L130 PetriNetUnfolder]: 192/659 cut-off events. [2022-11-20 11:28:05,993 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:28:05,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1084 conditions, 659 events. 192/659 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3556 event pairs, 86 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 1048. Up to 289 conditions per place. [2022-11-20 11:28:06,001 INFO L137 encePairwiseOnDemand]: 64/75 looper letters, 64 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2022-11-20 11:28:06,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 128 transitions, 431 flow [2022-11-20 11:28:06,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:28:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:28:06,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 345 transitions. [2022-11-20 11:28:06,016 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2022-11-20 11:28:06,017 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 345 transitions. [2022-11-20 11:28:06,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 345 transitions. [2022-11-20 11:28:06,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:28:06,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 345 transitions. [2022-11-20 11:28:06,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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) [2022-11-20 11:28:06,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:06,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:06,037 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 151 flow. Second operand 6 states and 345 transitions. [2022-11-20 11:28:06,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 128 transitions, 431 flow [2022-11-20 11:28:06,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 128 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:28:06,050 INFO L231 Difference]: Finished difference. Result has 86 places, 95 transitions, 300 flow [2022-11-20 11:28:06,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=86, PETRI_TRANSITIONS=95} [2022-11-20 11:28:06,059 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 9 predicate places. [2022-11-20 11:28:06,060 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 95 transitions, 300 flow [2022-11-20 11:28:06,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2022-11-20 11:28:06,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:28:06,061 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] [2022-11-20 11:28:06,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:28:06,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:28:06,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:06,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1518028846, now seen corresponding path program 1 times [2022-11-20 11:28:06,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:06,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208667753] [2022-11-20 11:28:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:06,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:28:06,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:06,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208667753] [2022-11-20 11:28:06,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208667753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:06,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:06,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238594409] [2022-11-20 11:28:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:06,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:06,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:06,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:06,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:06,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 75 [2022-11-20 11:28:06,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 95 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 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) [2022-11-20 11:28:06,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:28:06,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 75 [2022-11-20 11:28:06,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:28:06,659 INFO L130 PetriNetUnfolder]: 209/737 cut-off events. [2022-11-20 11:28:06,659 INFO L131 PetriNetUnfolder]: For 229/237 co-relation queries the response was YES. [2022-11-20 11:28:06,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 737 events. 209/737 cut-off events. For 229/237 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4215 event pairs, 61 based on Foata normal form. 0/687 useless extension candidates. Maximal degree in co-relation 1453. Up to 339 conditions per place. [2022-11-20 11:28:06,665 INFO L137 encePairwiseOnDemand]: 64/75 looper letters, 76 selfloop transitions, 26 changer transitions 0/145 dead transitions. [2022-11-20 11:28:06,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 145 transitions, 694 flow [2022-11-20 11:28:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:28:06,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:28:06,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 346 transitions. [2022-11-20 11:28:06,668 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7688888888888888 [2022-11-20 11:28:06,668 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 346 transitions. [2022-11-20 11:28:06,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 346 transitions. [2022-11-20 11:28:06,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:28:06,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 346 transitions. [2022-11-20 11:28:06,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 57.666666666666664) internal successors, (346), 6 states have internal predecessors, (346), 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) [2022-11-20 11:28:06,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:06,672 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:06,672 INFO L175 Difference]: Start difference. First operand has 86 places, 95 transitions, 300 flow. Second operand 6 states and 346 transitions. [2022-11-20 11:28:06,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 145 transitions, 694 flow [2022-11-20 11:28:06,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 145 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:28:06,678 INFO L231 Difference]: Finished difference. Result has 96 places, 116 transitions, 484 flow [2022-11-20 11:28:06,679 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=484, PETRI_PLACES=96, PETRI_TRANSITIONS=116} [2022-11-20 11:28:06,679 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 19 predicate places. [2022-11-20 11:28:06,679 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 116 transitions, 484 flow [2022-11-20 11:28:06,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.666666666666664) internal successors, (274), 6 states have internal predecessors, (274), 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) [2022-11-20 11:28:06,680 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:28:06,680 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] [2022-11-20 11:28:06,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:28:06,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:28:06,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1478892226, now seen corresponding path program 1 times [2022-11-20 11:28:06,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:06,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190259825] [2022-11-20 11:28:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:28:07,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:07,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190259825] [2022-11-20 11:28:07,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190259825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:07,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:07,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704752128] [2022-11-20 11:28:07,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:07,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:07,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:07,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:07,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:07,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 75 [2022-11-20 11:28:07,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 116 transitions, 484 flow. Second operand has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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) [2022-11-20 11:28:07,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:28:07,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 75 [2022-11-20 11:28:07,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:28:07,433 INFO L130 PetriNetUnfolder]: 301/988 cut-off events. [2022-11-20 11:28:07,433 INFO L131 PetriNetUnfolder]: For 588/601 co-relation queries the response was YES. [2022-11-20 11:28:07,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2370 conditions, 988 events. 301/988 cut-off events. For 588/601 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6162 event pairs, 88 based on Foata normal form. 4/937 useless extension candidates. Maximal degree in co-relation 2325. Up to 540 conditions per place. [2022-11-20 11:28:07,441 INFO L137 encePairwiseOnDemand]: 60/75 looper letters, 83 selfloop transitions, 53 changer transitions 4/180 dead transitions. [2022-11-20 11:28:07,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 180 transitions, 1052 flow [2022-11-20 11:28:07,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:28:07,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:28:07,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2022-11-20 11:28:07,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2022-11-20 11:28:07,444 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 334 transitions. [2022-11-20 11:28:07,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 334 transitions. [2022-11-20 11:28:07,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:28:07,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 334 transitions. [2022-11-20 11:28:07,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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) [2022-11-20 11:28:07,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:07,447 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:07,447 INFO L175 Difference]: Start difference. First operand has 96 places, 116 transitions, 484 flow. Second operand 6 states and 334 transitions. [2022-11-20 11:28:07,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 180 transitions, 1052 flow [2022-11-20 11:28:07,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 180 transitions, 1052 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:28:07,465 INFO L231 Difference]: Finished difference. Result has 106 places, 163 transitions, 966 flow [2022-11-20 11:28:07,465 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=966, PETRI_PLACES=106, PETRI_TRANSITIONS=163} [2022-11-20 11:28:07,470 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 29 predicate places. [2022-11-20 11:28:07,471 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 163 transitions, 966 flow [2022-11-20 11:28:07,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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) [2022-11-20 11:28:07,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:28:07,472 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] [2022-11-20 11:28:07,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:28:07,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:28:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:07,474 INFO L85 PathProgramCache]: Analyzing trace with hash -161019237, now seen corresponding path program 1 times [2022-11-20 11:28:07,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:07,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205081452] [2022-11-20 11:28:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:07,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:28:07,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:28:07,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:28:07,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205081452] [2022-11-20 11:28:07,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205081452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:28:07,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:28:07,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:28:07,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785257630] [2022-11-20 11:28:07,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:28:07,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:28:07,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:28:07,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:28:07,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:28:07,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 75 [2022-11-20 11:28:07,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 163 transitions, 966 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2022-11-20 11:28:07,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:28:07,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 75 [2022-11-20 11:28:07,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:28:08,153 INFO L130 PetriNetUnfolder]: 392/1147 cut-off events. [2022-11-20 11:28:08,153 INFO L131 PetriNetUnfolder]: For 1445/1455 co-relation queries the response was YES. [2022-11-20 11:28:08,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 1147 events. 392/1147 cut-off events. For 1445/1455 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7146 event pairs, 89 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 3480. Up to 687 conditions per place. [2022-11-20 11:28:08,163 INFO L137 encePairwiseOnDemand]: 60/75 looper letters, 119 selfloop transitions, 58 changer transitions 15/234 dead transitions. [2022-11-20 11:28:08,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 234 transitions, 1768 flow [2022-11-20 11:28:08,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:28:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:28:08,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 339 transitions. [2022-11-20 11:28:08,165 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7533333333333333 [2022-11-20 11:28:08,165 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 339 transitions. [2022-11-20 11:28:08,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 339 transitions. [2022-11-20 11:28:08,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:28:08,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 339 transitions. [2022-11-20 11:28:08,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2022-11-20 11:28:08,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:08,169 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2022-11-20 11:28:08,170 INFO L175 Difference]: Start difference. First operand has 106 places, 163 transitions, 966 flow. Second operand 6 states and 339 transitions. [2022-11-20 11:28:08,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 234 transitions, 1768 flow [2022-11-20 11:28:08,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 234 transitions, 1704 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-20 11:28:08,221 INFO L231 Difference]: Finished difference. Result has 116 places, 207 transitions, 1458 flow [2022-11-20 11:28:08,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1458, PETRI_PLACES=116, PETRI_TRANSITIONS=207} [2022-11-20 11:28:08,222 INFO L288 CegarLoopForPetriNet]: 77 programPoint places, 39 predicate places. [2022-11-20 11:28:08,222 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 207 transitions, 1458 flow [2022-11-20 11:28:08,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2022-11-20 11:28:08,223 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:28:08,223 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] [2022-11-20 11:28:08,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:28:08,223 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 11:28:08,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:28:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash -764700992, now seen corresponding path program 1 times [2022-11-20 11:28:08,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:28:08,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677022822] [2022-11-20 11:28:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:28:08,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:28:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:28:08,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:28:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:28:08,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:28:08,312 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:28:08,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-20 11:28:08,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-20 11:28:08,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-20 11:28:08,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-20 11:28:08,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-20 11:28:08,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-20 11:28:08,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-20 11:28:08,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:28:08,316 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 11:28:08,324 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:28:08,324 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:28:08,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:28:08 BasicIcfg [2022-11-20 11:28:08,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:28:08,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:28:08,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:28:08,385 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:28:08,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:28:04" (3/4) ... [2022-11-20 11:28:08,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:28:08,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:28:08,394 INFO L158 Benchmark]: Toolchain (without parser) took 5431.42ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 115.7MB in the beginning and 157.2MB in the end (delta: -41.5MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-20 11:28:08,394 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:28:08,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.09ms. Allocated memory is still 163.6MB. Free memory was 115.7MB in the beginning and 88.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 11:28:08,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.85ms. Allocated memory is still 163.6MB. Free memory was 88.4MB in the beginning and 86.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:28:08,396 INFO L158 Benchmark]: Boogie Preprocessor took 66.38ms. Allocated memory is still 163.6MB. Free memory was 86.3MB in the beginning and 84.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:28:08,401 INFO L158 Benchmark]: RCFGBuilder took 477.65ms. Allocated memory is still 163.6MB. Free memory was 84.2MB in the beginning and 70.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:28:08,406 INFO L158 Benchmark]: TraceAbstraction took 4171.41ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 70.0MB in the beginning and 157.2MB in the end (delta: -87.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:28:08,407 INFO L158 Benchmark]: Witness Printer took 6.34ms. Allocated memory is still 209.7MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:28:08,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 641.09ms. Allocated memory is still 163.6MB. Free memory was 115.7MB in the beginning and 88.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.85ms. Allocated memory is still 163.6MB. Free memory was 88.4MB in the beginning and 86.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.38ms. Allocated memory is still 163.6MB. Free memory was 86.3MB in the beginning and 84.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.65ms. Allocated memory is still 163.6MB. Free memory was 84.2MB in the beginning and 70.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4171.41ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 70.0MB in the beginning and 157.2MB in the end (delta: -87.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.34ms. Allocated memory is still 209.7MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 932]: Data race detected Data race detected The following path leads to a data race: [L918-L921] 0 struct { int x; int y; } data; VAL [data={1:0}] [L927] 0 int *i,j = __VERIFIER_nondet_int(); VAL [data={1:0}] [L927] 0 int *i,j = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, data={1:0}, j=1] [L928] 0 pthread_t id; VAL [data={1:0}, id={5:0}, j=1] [L929] COND TRUE 0 \read(j) VAL [data={1:0}, id={5:0}, j=1] [L929] 0 i = &data.x VAL [data={1:0}, i={1:0}, id={5:0}, j=1] [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] EXPR 0 \read(*i) VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data={1:0}, data.x=0, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data.x=0, data.x++=9data.x++=0] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data={1:0}, data.x=0, data.x++=9, data.x++=0, i={1:0}, id={5:0}, j=1] Now there is a data race (on the heap) between C: data.x++ [923] and C: (*i)++ [932] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 7 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: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 706 IncrementalHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 104 mSDtfsCounter, 706 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1458occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 1.6s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 458 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! [2022-11-20 11:28:08,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1f0d3ec-3b6b-4af5-aa79-586c25851215/bin/uautomizer-ug76WZFUDN/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