./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.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_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/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_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/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_a210664b-76f7-4053-ae9e-360e716a9c22/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 91e4ed4bfe1f39ec65b13c41c6a7b6461aa954e8b5b654b0aa1c967848462a4b --- 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 11:16:44,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:16:44,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:16:44,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:16:44,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:16:44,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:16:44,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:16:44,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:16:44,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:16:44,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:16:44,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:16:44,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:16:44,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:16:44,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:16:44,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:16:44,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:16:44,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:16:44,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:16:44,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:16:44,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:16:44,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:16:44,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:16:44,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:16:44,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:16:44,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:16:44,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:16:44,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:16:44,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:16:44,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:16:44,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:16:44,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:16:44,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:16:44,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:16:44,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:16:44,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:16:44,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:16:44,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:16:44,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:16:44,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:16:44,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:16:44,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:16:44,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:16:44,890 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:16:44,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:16:44,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:16:44,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:16:44,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:16:44,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:16:44,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:16:44,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:16:44,914 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:16:44,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:16:44,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:16:44,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:16:44,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:16:44,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:16:44,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:16:44,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:16:44,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:16:44,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:16:44,917 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:16:44,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:16:44,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:16:44,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:16:44,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:16:44,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:16:44,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:16:44,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:16:44,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:16:44,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:16:44,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:16:44,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:16:44,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:16:44,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:16:44,922 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:16:44,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:16:44,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:16:44,923 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_a210664b-76f7-4053-ae9e-360e716a9c22/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91e4ed4bfe1f39ec65b13c41c6a7b6461aa954e8b5b654b0aa1c967848462a4b [2022-11-20 11:16:45,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:16:45,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:16:45,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:16:45,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:16:45,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:16:45,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i [2022-11-20 11:16:48,579 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:16:48,832 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:16:48,833 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/sv-benchmarks/c/goblint-regression/04-mutex_37-indirect_rc.i [2022-11-20 11:16:48,848 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/data/8956ec847/da9551a7855b48979b73c7e739d404a8/FLAG2f7d12394 [2022-11-20 11:16:48,865 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/data/8956ec847/da9551a7855b48979b73c7e739d404a8 [2022-11-20 11:16:48,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:16:48,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:16:48,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:16:48,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:16:48,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:16:48,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:16:48" (1/1) ... [2022-11-20 11:16:48,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae8e73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:48, skipping insertion in model container [2022-11-20 11:16:48,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:16:48" (1/1) ... [2022-11-20 11:16:48,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:16:48,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:16:49,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:16:49,282 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:16:49,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:16:49,366 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:16:49,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49 WrapperNode [2022-11-20 11:16:49,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:16:49,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:16:49,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:16:49,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:16:49,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,448 INFO L138 Inliner]: procedures = 162, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 70 [2022-11-20 11:16:49,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:16:49,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:16:49,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:16:49,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:16:49,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,500 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:16:49,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:16:49,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:16:49,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:16:49,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (1/1) ... [2022-11-20 11:16:49,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:16:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:16:49,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:16:49,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:16:49,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:16:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:16:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:16:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:16:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:16:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:16:49,600 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:16:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:16:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:16:49,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:16:49,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:16:49,602 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 11:16:49,742 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:16:49,744 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:16:50,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:16:50,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:16:50,041 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:16:50,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:50 BoogieIcfgContainer [2022-11-20 11:16:50,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:16:50,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:16:50,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:16:50,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:16:50,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:16:48" (1/3) ... [2022-11-20 11:16:50,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb35d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:16:50, skipping insertion in model container [2022-11-20 11:16:50,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:16:49" (2/3) ... [2022-11-20 11:16:50,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb35d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:16:50, skipping insertion in model container [2022-11-20 11:16:50,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:50" (3/3) ... [2022-11-20 11:16:50,055 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_37-indirect_rc.i [2022-11-20 11:16:50,065 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:16:50,077 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:16:50,078 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 11:16:50,078 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:16:50,271 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 11:16:50,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 109 transitions, 226 flow [2022-11-20 11:16:50,383 INFO L130 PetriNetUnfolder]: 0/108 cut-off events. [2022-11-20 11:16:50,383 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:16:50,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 0/108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-20 11:16:50,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 109 transitions, 226 flow [2022-11-20 11:16:50,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 100 transitions, 203 flow [2022-11-20 11:16:50,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:16:50,413 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;@71da86e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:16:50,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-20 11:16:50,424 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2022-11-20 11:16:50,424 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:16:50,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:50,425 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] [2022-11-20 11:16:50,426 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:50,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:50,432 INFO L85 PathProgramCache]: Analyzing trace with hash -757145905, now seen corresponding path program 1 times [2022-11-20 11:16:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:50,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068750620] [2022-11-20 11:16:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:50,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:50,721 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 11:16:50,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:50,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068750620] [2022-11-20 11:16:50,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068750620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:50,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:50,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:16:50,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947278843] [2022-11-20 11:16:50,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:50,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:16:50,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:50,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:16:50,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:16:50,815 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 109 [2022-11-20 11:16:50,822 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 11:16:50,822 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:50,822 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 109 [2022-11-20 11:16:50,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:50,953 INFO L130 PetriNetUnfolder]: 0/99 cut-off events. [2022-11-20 11:16:50,955 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:16:50,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 99 events. 0/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2022-11-20 11:16:50,957 INFO L137 encePairwiseOnDemand]: 106/109 looper letters, 10 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2022-11-20 11:16:50,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 99 transitions, 225 flow [2022-11-20 11:16:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:16:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:16:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2022-11-20 11:16:50,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9113149847094801 [2022-11-20 11:16:50,984 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2022-11-20 11:16:50,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2022-11-20 11:16:50,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:50,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2022-11-20 11:16:51,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 11:16:51,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,013 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 203 flow. Second operand 3 states and 298 transitions. [2022-11-20 11:16:51,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 99 transitions, 225 flow [2022-11-20 11:16:51,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:16:51,026 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 204 flow [2022-11-20 11:16:51,029 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2022-11-20 11:16:51,040 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 0 predicate places. [2022-11-20 11:16:51,040 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 204 flow [2022-11-20 11:16:51,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 11:16:51,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:51,042 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] [2022-11-20 11:16:51,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:16:51,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:51,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1767735309, now seen corresponding path program 1 times [2022-11-20 11:16:51,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:51,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218849828] [2022-11-20 11:16:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:51,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:51,167 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 11:16:51,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218849828] [2022-11-20 11:16:51,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218849828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:51,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:51,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:16:51,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916463128] [2022-11-20 11:16:51,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:51,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:16:51,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:51,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:16:51,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:16:51,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 109 [2022-11-20 11:16:51,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 11:16:51,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:51,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 109 [2022-11-20 11:16:51,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:51,215 INFO L130 PetriNetUnfolder]: 0/97 cut-off events. [2022-11-20 11:16:51,215 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:16:51,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 97 events. 0/97 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-20 11:16:51,225 INFO L137 encePairwiseOnDemand]: 106/109 looper letters, 6 selfloop transitions, 1 changer transitions 0/97 dead transitions. [2022-11-20 11:16:51,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 97 transitions, 214 flow [2022-11-20 11:16:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:16:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:16:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2022-11-20 11:16:51,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.926605504587156 [2022-11-20 11:16:51,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2022-11-20 11:16:51,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2022-11-20 11:16:51,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:51,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2022-11-20 11:16:51,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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 11:16:51,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,237 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 204 flow. Second operand 3 states and 303 transitions. [2022-11-20 11:16:51,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 97 transitions, 214 flow [2022-11-20 11:16:51,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 97 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:16:51,242 INFO L231 Difference]: Finished difference. Result has 102 places, 97 transitions, 198 flow [2022-11-20 11:16:51,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=102, PETRI_TRANSITIONS=97} [2022-11-20 11:16:51,244 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2022-11-20 11:16:51,244 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 97 transitions, 198 flow [2022-11-20 11:16:51,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 11:16:51,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:51,247 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] [2022-11-20 11:16:51,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:16:51,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:51,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2128740494, now seen corresponding path program 1 times [2022-11-20 11:16:51,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:51,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421071690] [2022-11-20 11:16:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:51,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:51,400 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 11:16:51,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:51,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421071690] [2022-11-20 11:16:51,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421071690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:51,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:51,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:16:51,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207325766] [2022-11-20 11:16:51,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:51,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:16:51,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:51,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:16:51,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:16:51,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 109 [2022-11-20 11:16:51,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 11:16:51,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:51,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 109 [2022-11-20 11:16:51,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:51,470 INFO L130 PetriNetUnfolder]: 0/96 cut-off events. [2022-11-20 11:16:51,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:16:51,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 96 events. 0/96 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-20 11:16:51,471 INFO L137 encePairwiseOnDemand]: 106/109 looper letters, 7 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2022-11-20 11:16:51,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 96 transitions, 214 flow [2022-11-20 11:16:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:16:51,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:16:51,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2022-11-20 11:16:51,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9296636085626911 [2022-11-20 11:16:51,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2022-11-20 11:16:51,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2022-11-20 11:16:51,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:51,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2022-11-20 11:16:51,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 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 11:16:51,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,484 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 198 flow. Second operand 3 states and 304 transitions. [2022-11-20 11:16:51,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 96 transitions, 214 flow [2022-11-20 11:16:51,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 96 transitions, 213 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:16:51,487 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 199 flow [2022-11-20 11:16:51,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2022-11-20 11:16:51,488 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -2 predicate places. [2022-11-20 11:16:51,489 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 199 flow [2022-11-20 11:16:51,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 11:16:51,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:51,490 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] [2022-11-20 11:16:51,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:16:51,490 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:51,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:51,491 INFO L85 PathProgramCache]: Analyzing trace with hash -159277023, now seen corresponding path program 1 times [2022-11-20 11:16:51,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:51,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474194330] [2022-11-20 11:16:51,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:51,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:51,555 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 11:16:51,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:51,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474194330] [2022-11-20 11:16:51,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474194330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:51,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:51,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:16:51,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631572675] [2022-11-20 11:16:51,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:51,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:16:51,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:51,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:16:51,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:16:51,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 109 [2022-11-20 11:16:51,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 11:16:51,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:51,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 109 [2022-11-20 11:16:51,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:51,595 INFO L130 PetriNetUnfolder]: 0/95 cut-off events. [2022-11-20 11:16:51,596 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:16:51,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 0/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-11-20 11:16:51,597 INFO L137 encePairwiseOnDemand]: 107/109 looper letters, 4 selfloop transitions, 1 changer transitions 0/95 dead transitions. [2022-11-20 11:16:51,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 95 transitions, 207 flow [2022-11-20 11:16:51,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:16:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:16:51,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2022-11-20 11:16:51,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.944954128440367 [2022-11-20 11:16:51,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2022-11-20 11:16:51,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2022-11-20 11:16:51,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:51,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2022-11-20 11:16:51,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 11:16:51,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 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 11:16:51,620 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 199 flow. Second operand 3 states and 309 transitions. [2022-11-20 11:16:51,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 95 transitions, 207 flow [2022-11-20 11:16:51,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 95 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:16:51,629 INFO L231 Difference]: Finished difference. Result has 101 places, 95 transitions, 195 flow [2022-11-20 11:16:51,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=101, PETRI_TRANSITIONS=95} [2022-11-20 11:16:51,632 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, -3 predicate places. [2022-11-20 11:16:51,632 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 95 transitions, 195 flow [2022-11-20 11:16:51,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 11:16:51,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:51,635 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] [2022-11-20 11:16:51,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:16:51,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash -563524932, now seen corresponding path program 1 times [2022-11-20 11:16:51,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:51,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726582906] [2022-11-20 11:16:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:51,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:52,293 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 11:16:52,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:52,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726582906] [2022-11-20 11:16:52,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726582906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:52,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:52,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:52,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158115545] [2022-11-20 11:16:52,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:52,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:52,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:52,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:52,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:52,301 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 109 [2022-11-20 11:16:52,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 95 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 11:16:52,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:52,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 109 [2022-11-20 11:16:52,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:52,822 INFO L130 PetriNetUnfolder]: 263/777 cut-off events. [2022-11-20 11:16:52,822 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:16:52,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 777 events. 263/777 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4086 event pairs, 158 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 1319. Up to 437 conditions per place. [2022-11-20 11:16:52,830 INFO L137 encePairwiseOnDemand]: 98/109 looper letters, 68 selfloop transitions, 22 changer transitions 0/149 dead transitions. [2022-11-20 11:16:52,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 149 transitions, 483 flow [2022-11-20 11:16:52,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:52,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:52,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2022-11-20 11:16:52,833 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7996941896024465 [2022-11-20 11:16:52,833 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2022-11-20 11:16:52,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2022-11-20 11:16:52,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:52,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2022-11-20 11:16:52,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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 11:16:52,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:52,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:52,838 INFO L175 Difference]: Start difference. First operand has 101 places, 95 transitions, 195 flow. Second operand 6 states and 523 transitions. [2022-11-20 11:16:52,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 149 transitions, 483 flow [2022-11-20 11:16:52,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 149 transitions, 482 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:16:52,842 INFO L231 Difference]: Finished difference. Result has 110 places, 116 transitions, 344 flow [2022-11-20 11:16:52,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=110, PETRI_TRANSITIONS=116} [2022-11-20 11:16:52,843 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 6 predicate places. [2022-11-20 11:16:52,843 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 116 transitions, 344 flow [2022-11-20 11:16:52,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 11:16:52,844 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:52,844 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] [2022-11-20 11:16:52,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:16:52,844 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:52,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:52,845 INFO L85 PathProgramCache]: Analyzing trace with hash -932716891, now seen corresponding path program 1 times [2022-11-20 11:16:52,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:52,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617926873] [2022-11-20 11:16:52,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:52,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:53,155 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 11:16:53,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:53,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617926873] [2022-11-20 11:16:53,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617926873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:53,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:53,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:53,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87604991] [2022-11-20 11:16:53,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:53,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:53,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:53,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:53,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:53,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 109 [2022-11-20 11:16:53,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 116 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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 11:16:53,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:53,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 109 [2022-11-20 11:16:53,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:53,649 INFO L130 PetriNetUnfolder]: 328/953 cut-off events. [2022-11-20 11:16:53,649 INFO L131 PetriNetUnfolder]: For 260/268 co-relation queries the response was YES. [2022-11-20 11:16:53,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1984 conditions, 953 events. 328/953 cut-off events. For 260/268 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5429 event pairs, 109 based on Foata normal form. 0/867 useless extension candidates. Maximal degree in co-relation 1948. Up to 505 conditions per place. [2022-11-20 11:16:53,658 INFO L137 encePairwiseOnDemand]: 98/109 looper letters, 104 selfloop transitions, 26 changer transitions 0/190 dead transitions. [2022-11-20 11:16:53,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 190 transitions, 842 flow [2022-11-20 11:16:53,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-11-20 11:16:53,660 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8379204892966361 [2022-11-20 11:16:53,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-11-20 11:16:53,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-11-20 11:16:53,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:53,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-11-20 11:16:53,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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 11:16:53,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:53,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:53,666 INFO L175 Difference]: Start difference. First operand has 110 places, 116 transitions, 344 flow. Second operand 6 states and 548 transitions. [2022-11-20 11:16:53,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 190 transitions, 842 flow [2022-11-20 11:16:53,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 190 transitions, 842 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:53,672 INFO L231 Difference]: Finished difference. Result has 120 places, 137 transitions, 528 flow [2022-11-20 11:16:53,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=528, PETRI_PLACES=120, PETRI_TRANSITIONS=137} [2022-11-20 11:16:53,674 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 16 predicate places. [2022-11-20 11:16:53,674 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 137 transitions, 528 flow [2022-11-20 11:16:53,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 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 11:16:53,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:53,675 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] [2022-11-20 11:16:53,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:16:53,675 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:53,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1509049556, now seen corresponding path program 1 times [2022-11-20 11:16:53,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444799308] [2022-11-20 11:16:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:54,073 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 11:16:54,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:54,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444799308] [2022-11-20 11:16:54,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444799308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:54,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:54,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:54,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161384241] [2022-11-20 11:16:54,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:54,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:54,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:54,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 109 [2022-11-20 11:16:54,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 137 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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 11:16:54,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:54,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 109 [2022-11-20 11:16:54,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:54,694 INFO L130 PetriNetUnfolder]: 402/1151 cut-off events. [2022-11-20 11:16:54,695 INFO L131 PetriNetUnfolder]: For 762/775 co-relation queries the response was YES. [2022-11-20 11:16:54,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2882 conditions, 1151 events. 402/1151 cut-off events. For 762/775 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6986 event pairs, 154 based on Foata normal form. 4/1075 useless extension candidates. Maximal degree in co-relation 2839. Up to 749 conditions per place. [2022-11-20 11:16:54,705 INFO L137 encePairwiseOnDemand]: 94/109 looper letters, 92 selfloop transitions, 53 changer transitions 0/201 dead transitions. [2022-11-20 11:16:54,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 201 transitions, 1106 flow [2022-11-20 11:16:54,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2022-11-20 11:16:54,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7752293577981652 [2022-11-20 11:16:54,708 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2022-11-20 11:16:54,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2022-11-20 11:16:54,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:54,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2022-11-20 11:16:54,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 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 11:16:54,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:54,712 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:54,713 INFO L175 Difference]: Start difference. First operand has 120 places, 137 transitions, 528 flow. Second operand 6 states and 507 transitions. [2022-11-20 11:16:54,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 201 transitions, 1106 flow [2022-11-20 11:16:54,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 201 transitions, 1106 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:54,723 INFO L231 Difference]: Finished difference. Result has 130 places, 184 transitions, 1010 flow [2022-11-20 11:16:54,723 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1010, PETRI_PLACES=130, PETRI_TRANSITIONS=184} [2022-11-20 11:16:54,724 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 26 predicate places. [2022-11-20 11:16:54,724 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 184 transitions, 1010 flow [2022-11-20 11:16:54,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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 11:16:54,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:54,725 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] [2022-11-20 11:16:54,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:16:54,726 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:54,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:54,726 INFO L85 PathProgramCache]: Analyzing trace with hash 902304810, now seen corresponding path program 1 times [2022-11-20 11:16:54,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:54,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575881017] [2022-11-20 11:16:54,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:54,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:16:55,040 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 11:16:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:16:55,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575881017] [2022-11-20 11:16:55,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575881017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:16:55,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:16:55,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:16:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130660283] [2022-11-20 11:16:55,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:16:55,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:16:55,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:16:55,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:16:55,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:16:55,044 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 109 [2022-11-20 11:16:55,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 184 transitions, 1010 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 11:16:55,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:16:55,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 109 [2022-11-20 11:16:55,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:16:55,688 INFO L130 PetriNetUnfolder]: 563/1472 cut-off events. [2022-11-20 11:16:55,688 INFO L131 PetriNetUnfolder]: For 1778/1794 co-relation queries the response was YES. [2022-11-20 11:16:55,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4446 conditions, 1472 events. 563/1472 cut-off events. For 1778/1794 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 9017 event pairs, 163 based on Foata normal form. 0/1404 useless extension candidates. Maximal degree in co-relation 4400. Up to 979 conditions per place. [2022-11-20 11:16:55,703 INFO L137 encePairwiseOnDemand]: 90/109 looper letters, 133 selfloop transitions, 83 changer transitions 4/279 dead transitions. [2022-11-20 11:16:55,703 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 279 transitions, 1916 flow [2022-11-20 11:16:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:16:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:16:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 541 transitions. [2022-11-20 11:16:55,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.827217125382263 [2022-11-20 11:16:55,706 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 541 transitions. [2022-11-20 11:16:55,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 541 transitions. [2022-11-20 11:16:55,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:16:55,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 541 transitions. [2022-11-20 11:16:55,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.16666666666667) internal successors, (541), 6 states have internal predecessors, (541), 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 11:16:55,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:55,710 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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 11:16:55,710 INFO L175 Difference]: Start difference. First operand has 130 places, 184 transitions, 1010 flow. Second operand 6 states and 541 transitions. [2022-11-20 11:16:55,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 279 transitions, 1916 flow [2022-11-20 11:16:55,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 279 transitions, 1852 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-20 11:16:55,730 INFO L231 Difference]: Finished difference. Result has 140 places, 253 transitions, 1702 flow [2022-11-20 11:16:55,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1702, PETRI_PLACES=140, PETRI_TRANSITIONS=253} [2022-11-20 11:16:55,731 INFO L288 CegarLoopForPetriNet]: 104 programPoint places, 36 predicate places. [2022-11-20 11:16:55,731 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 253 transitions, 1702 flow [2022-11-20 11:16:55,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 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 11:16:55,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:16:55,732 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] [2022-11-20 11:16:55,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:16:55,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-11-20 11:16:55,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:16:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash -462892952, now seen corresponding path program 1 times [2022-11-20 11:16:55,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:16:55,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578825128] [2022-11-20 11:16:55,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:16:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:16:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:16:55,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:16:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:16:55,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:16:55,816 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:16:55,818 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-20 11:16:55,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-20 11:16:55,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-11-20 11:16:55,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-11-20 11:16:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-20 11:16:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-20 11:16:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-20 11:16:55,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-20 11:16:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2022-11-20 11:16:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-20 11:16:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-20 11:16:55,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-20 11:16:55,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-20 11:16:55,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-20 11:16:55,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:16:55,829 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:16:55,838 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:16:55,839 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:16:55,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:16:55 BasicIcfg [2022-11-20 11:16:55,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:16:55,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:16:55,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:16:55,922 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:16:55,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:16:50" (3/4) ... [2022-11-20 11:16:55,926 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:16:55,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:16:55,927 INFO L158 Benchmark]: Toolchain (without parser) took 7057.03ms. Allocated memory was 125.8MB in the beginning and 218.1MB in the end (delta: 92.3MB). Free memory was 83.5MB in the beginning and 116.2MB in the end (delta: -32.6MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2022-11-20 11:16:55,927 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:16:55,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 496.07ms. Allocated memory is still 125.8MB. Free memory was 83.1MB in the beginning and 64.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 11:16:55,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.95ms. Allocated memory is still 125.8MB. Free memory was 64.2MB in the beginning and 62.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:16:55,928 INFO L158 Benchmark]: Boogie Preprocessor took 54.13ms. Allocated memory is still 125.8MB. Free memory was 61.8MB in the beginning and 60.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:16:55,929 INFO L158 Benchmark]: RCFGBuilder took 539.77ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 44.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:16:55,929 INFO L158 Benchmark]: TraceAbstraction took 5874.50ms. Allocated memory was 125.8MB in the beginning and 218.1MB in the end (delta: 92.3MB). Free memory was 43.7MB in the beginning and 116.2MB in the end (delta: -72.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-11-20 11:16:55,930 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 218.1MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:16:55,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 496.07ms. Allocated memory is still 125.8MB. Free memory was 83.1MB in the beginning and 64.2MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.95ms. Allocated memory is still 125.8MB. Free memory was 64.2MB in the beginning and 62.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.13ms. Allocated memory is still 125.8MB. Free memory was 61.8MB in the beginning and 60.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 539.77ms. Allocated memory is still 125.8MB. Free memory was 60.1MB in the beginning and 44.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5874.50ms. Allocated memory was 125.8MB in the beginning and 218.1MB in the end (delta: 92.3MB). Free memory was 43.7MB in the beginning and 116.2MB in the end (delta: -72.5MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 218.1MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 685]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int g; VAL [g={1:0}] [L680] 0 int *g1; VAL [g={1:0}, g1={0:0}] [L681] 0 int *g2; VAL [g={1:0}, g1={0:0}, g2={0:0}] [L682] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [g={1:0}, g1={0:0}, g2={0:0}, mutex={2:0}] [L690] 0 pthread_t id; VAL [g={1:0}, g1={0:0}, g2={0:0}, id={5:0}, mutex={2:0}] [L691] 0 int x; VAL [g={1:0}, g1={0:0}, g2={0:0}, id={5:0}, mutex={2:0}] [L692] EXPR 0 g2 = &g VAL [g={1:0}, g1={0:0}, g2={1:0}, g2 = &g=25, id={5:0}, mutex={2:0}] [L692] 0 g1 = g2 = &g VAL [g={1:0}, g1={1:0}, g1 = g2 = &g=26, g2={1:0}, g2 = &g=25, id={5:0}, mutex={2:0}] [L693] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] EXPR 1 *g1 VAL [arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] EXPR 0 *g2 VAL [arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L694] EXPR 0 \read(*g2) VAL [\read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [\read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] EXPR 1 \read(*g1) VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [\read(*g1)=0, \read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [\read(*g1)=0, \read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [\read(*g1)=0, \read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [\read(*g1)=0, \read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] [L694] 0 (*g2)++ VAL [(*g2)++=0, (*g2)++=27, \read(*g1)=0, \read(*g2)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, id={5:0}, mutex={2:0}] [L685] 1 (*g1)++ VAL [\read(*g1)=0, arg={0:0}, arg={0:0}, g={1:0}, g1={1:0}, g2={1:0}, mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: (*g2)++ [694] * C: g2 = &g [692] * C: g1 = g2 = &g [692] and C: (*g1)++ [685] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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: 685]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 685]: 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, 140 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 145 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1045 IncrementalHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 145 mSDtfsCounter, 1045 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1702occurred in iteration=8, InterpolantAutomatonStates: 36, 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, 1.9s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 663 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 11:16:56,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a210664b-76f7-4053-ae9e-360e716a9c22/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