./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.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_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/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_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/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_d516ce88-a075-45e5-8abd-5bfe46206437/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 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 --- 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 09:27:56,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:56,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:56,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:56,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:56,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:56,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:56,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:56,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:56,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:56,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:56,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:56,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:56,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:56,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:56,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:56,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:56,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:56,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:56,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:56,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:56,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:56,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:56,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:56,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:56,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:56,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:56,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:56,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:56,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:56,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:56,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:56,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:56,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:56,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:56,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:56,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:56,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:56,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:56,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:56,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:56,215 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:27:56,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:56,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:56,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:56,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:56,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:56,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:56,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:56,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:56,258 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:56,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:56,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:56,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:56,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:56,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:56,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:56,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:56,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:56,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:56,262 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:27:56,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:56,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:56,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:56,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:56,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:56,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:56,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:56,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:56,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:56,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:56,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:56,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:56,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:56,266 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:56,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:56,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:56,267 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_d516ce88-a075-45e5-8abd-5bfe46206437/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5c1949da3ffd7703b26279578bf3cad55c86e8b0ffaff69f49645cdd541f53 [2022-11-20 09:27:56,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:56,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:56,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:56,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:56,549 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:56,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-11-20 09:27:59,536 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:59,883 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:59,883 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2022-11-20 09:27:59,923 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/data/70422ca70/9250fa5b17004bdb977633c549a9e139/FLAG7fa8ba89c [2022-11-20 09:27:59,938 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/data/70422ca70/9250fa5b17004bdb977633c549a9e139 [2022-11-20 09:27:59,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:59,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:59,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:59,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:59,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:59,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:59" (1/1) ... [2022-11-20 09:27:59,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b468a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:59, skipping insertion in model container [2022-11-20 09:27:59,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:59" (1/1) ... [2022-11-20 09:27:59,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:00,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:00,180 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-11-20 09:28:00,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:00,585 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:00,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2022-11-20 09:28:00,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:00,729 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:00,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00 WrapperNode [2022-11-20 09:28:00,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:00,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:00,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:00,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:00,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,800 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2022-11-20 09:28:00,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:00,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:00,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:00,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:00,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:00,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:00,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:00,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:00,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (1/1) ... [2022-11-20 09:28:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:28:00,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:00,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:00,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-20 09:28:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-20 09:28:00,948 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-20 09:28:00,948 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-20 09:28:00,948 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:28:00,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:28:00,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:00,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:00,951 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 09:28:01,327 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:01,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:01,639 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:01,648 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:01,648 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:28:01,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:01 BoogieIcfgContainer [2022-11-20 09:28:01,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:01,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:28:01,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:28:01,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:28:01,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:59" (1/3) ... [2022-11-20 09:28:01,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e77bb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:01, skipping insertion in model container [2022-11-20 09:28:01,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:00" (2/3) ... [2022-11-20 09:28:01,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e77bb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:01, skipping insertion in model container [2022-11-20 09:28:01,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:01" (3/3) ... [2022-11-20 09:28:01,668 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2022-11-20 09:28:01,676 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:28:01,686 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:28:01,687 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-20 09:28:01,687 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:28:01,778 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 09:28:01,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 126 transitions, 268 flow [2022-11-20 09:28:01,893 INFO L130 PetriNetUnfolder]: 1/124 cut-off events. [2022-11-20 09:28:01,893 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 09:28:01,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 124 events. 1/124 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2022-11-20 09:28:01,900 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 126 transitions, 268 flow [2022-11-20 09:28:01,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 114 transitions, 237 flow [2022-11-20 09:28:01,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:28:01,933 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;@32208933, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:28:01,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-20 09:28:01,951 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-20 09:28:01,951 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:28:01,952 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:01,953 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] [2022-11-20 09:28:01,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:01,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1668174377, now seen corresponding path program 1 times [2022-11-20 09:28:01,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:01,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48480241] [2022-11-20 09:28:01,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:01,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:02,551 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 09:28:02,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:02,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48480241] [2022-11-20 09:28:02,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48480241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:02,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:02,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:02,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404445792] [2022-11-20 09:28:02,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:02,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:02,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:02,615 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-11-20 09:28:02,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 114 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 09:28:02,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:02,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-11-20 09:28:02,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:02,840 INFO L130 PetriNetUnfolder]: 61/341 cut-off events. [2022-11-20 09:28:02,840 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-20 09:28:02,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 341 events. 61/341 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1387 event pairs, 37 based on Foata normal form. 5/295 useless extension candidates. Maximal degree in co-relation 427. Up to 126 conditions per place. [2022-11-20 09:28:02,848 INFO L137 encePairwiseOnDemand]: 120/126 looper letters, 22 selfloop transitions, 4 changer transitions 0/118 dead transitions. [2022-11-20 09:28:02,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 118 transitions, 300 flow [2022-11-20 09:28:02,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2022-11-20 09:28:02,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8915343915343915 [2022-11-20 09:28:02,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2022-11-20 09:28:02,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2022-11-20 09:28:02,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:02,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2022-11-20 09:28:02,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 09:28:02,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:02,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:02,883 INFO L175 Difference]: Start difference. First operand has 120 places, 114 transitions, 237 flow. Second operand 3 states and 337 transitions. [2022-11-20 09:28:02,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 118 transitions, 300 flow [2022-11-20 09:28:02,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 118 transitions, 294 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 09:28:02,892 INFO L231 Difference]: Finished difference. Result has 120 places, 115 transitions, 258 flow [2022-11-20 09:28:02,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=120, PETRI_TRANSITIONS=115} [2022-11-20 09:28:02,898 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2022-11-20 09:28:02,899 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 115 transitions, 258 flow [2022-11-20 09:28:02,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 09:28:02,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:02,900 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] [2022-11-20 09:28:02,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:28:02,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:02,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:02,901 INFO L85 PathProgramCache]: Analyzing trace with hash -713174707, now seen corresponding path program 1 times [2022-11-20 09:28:02,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:02,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523526513] [2022-11-20 09:28:02,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:03,088 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 09:28:03,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:03,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523526513] [2022-11-20 09:28:03,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523526513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:03,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:03,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:03,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664496745] [2022-11-20 09:28:03,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:03,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:03,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:03,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:03,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 126 [2022-11-20 09:28:03,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 115 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 09:28:03,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:03,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 126 [2022-11-20 09:28:03,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:03,245 INFO L130 PetriNetUnfolder]: 56/355 cut-off events. [2022-11-20 09:28:03,245 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-20 09:28:03,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 355 events. 56/355 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1451 event pairs, 28 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 428. Up to 96 conditions per place. [2022-11-20 09:28:03,253 INFO L137 encePairwiseOnDemand]: 118/126 looper letters, 22 selfloop transitions, 6 changer transitions 0/123 dead transitions. [2022-11-20 09:28:03,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 123 transitions, 334 flow [2022-11-20 09:28:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:03,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2022-11-20 09:28:03,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2022-11-20 09:28:03,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2022-11-20 09:28:03,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2022-11-20 09:28:03,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:03,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2022-11-20 09:28:03,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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 09:28:03,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:03,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:03,267 INFO L175 Difference]: Start difference. First operand has 120 places, 115 transitions, 258 flow. Second operand 3 states and 343 transitions. [2022-11-20 09:28:03,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 123 transitions, 334 flow [2022-11-20 09:28:03,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 123 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:03,276 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 300 flow [2022-11-20 09:28:03,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2022-11-20 09:28:03,278 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 2 predicate places. [2022-11-20 09:28:03,278 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 300 flow [2022-11-20 09:28:03,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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 09:28:03,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:03,279 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] [2022-11-20 09:28:03,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:28:03,280 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -989480385, now seen corresponding path program 1 times [2022-11-20 09:28:03,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:03,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318320430] [2022-11-20 09:28:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:03,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:03,423 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 09:28:03,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:03,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318320430] [2022-11-20 09:28:03,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318320430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:03,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:03,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:03,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288751011] [2022-11-20 09:28:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:03,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:03,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:03,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:03,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:03,429 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-11-20 09:28:03,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 09:28:03,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:03,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-11-20 09:28:03,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:03,599 INFO L130 PetriNetUnfolder]: 92/491 cut-off events. [2022-11-20 09:28:03,600 INFO L131 PetriNetUnfolder]: For 136/146 co-relation queries the response was YES. [2022-11-20 09:28:03,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 491 events. 92/491 cut-off events. For 136/146 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2307 event pairs, 36 based on Foata normal form. 3/449 useless extension candidates. Maximal degree in co-relation 731. Up to 150 conditions per place. [2022-11-20 09:28:03,606 INFO L137 encePairwiseOnDemand]: 118/126 looper letters, 36 selfloop transitions, 11 changer transitions 0/140 dead transitions. [2022-11-20 09:28:03,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 140 transitions, 475 flow [2022-11-20 09:28:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2022-11-20 09:28:03,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9126984126984127 [2022-11-20 09:28:03,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2022-11-20 09:28:03,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2022-11-20 09:28:03,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:03,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2022-11-20 09:28:03,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:03,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:03,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:03,616 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 300 flow. Second operand 3 states and 345 transitions. [2022-11-20 09:28:03,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 140 transitions, 475 flow [2022-11-20 09:28:03,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 140 transitions, 451 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:03,625 INFO L231 Difference]: Finished difference. Result has 124 places, 128 transitions, 376 flow [2022-11-20 09:28:03,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=124, PETRI_TRANSITIONS=128} [2022-11-20 09:28:03,628 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2022-11-20 09:28:03,628 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 128 transitions, 376 flow [2022-11-20 09:28:03,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 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 09:28:03,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:03,629 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] [2022-11-20 09:28:03,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:28:03,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1675794278, now seen corresponding path program 1 times [2022-11-20 09:28:03,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:03,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630500006] [2022-11-20 09:28:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:03,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,228 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 09:28:04,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:04,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630500006] [2022-11-20 09:28:04,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630500006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:04,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:04,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:04,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371110173] [2022-11-20 09:28:04,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:04,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:04,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:04,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:04,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2022-11-20 09:28:04,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 128 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:04,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:04,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2022-11-20 09:28:04,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:04,378 INFO L130 PetriNetUnfolder]: 32/310 cut-off events. [2022-11-20 09:28:04,378 INFO L131 PetriNetUnfolder]: For 94/131 co-relation queries the response was YES. [2022-11-20 09:28:04,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 310 events. 32/310 cut-off events. For 94/131 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1211 event pairs, 2 based on Foata normal form. 16/302 useless extension candidates. Maximal degree in co-relation 487. Up to 57 conditions per place. [2022-11-20 09:28:04,381 INFO L137 encePairwiseOnDemand]: 121/126 looper letters, 14 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2022-11-20 09:28:04,381 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 127 transitions, 410 flow [2022-11-20 09:28:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2022-11-20 09:28:04,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8346560846560847 [2022-11-20 09:28:04,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 631 transitions. [2022-11-20 09:28:04,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 631 transitions. [2022-11-20 09:28:04,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:04,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 631 transitions. [2022-11-20 09:28:04,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.16666666666667) internal successors, (631), 6 states have internal predecessors, (631), 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 09:28:04,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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 09:28:04,389 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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 09:28:04,389 INFO L175 Difference]: Start difference. First operand has 124 places, 128 transitions, 376 flow. Second operand 6 states and 631 transitions. [2022-11-20 09:28:04,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 127 transitions, 410 flow [2022-11-20 09:28:04,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 127 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:04,394 INFO L231 Difference]: Finished difference. Result has 126 places, 127 transitions, 360 flow [2022-11-20 09:28:04,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=126, PETRI_TRANSITIONS=127} [2022-11-20 09:28:04,395 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 6 predicate places. [2022-11-20 09:28:04,395 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 127 transitions, 360 flow [2022-11-20 09:28:04,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:04,396 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:04,396 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:04,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:28:04,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting f1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:04,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:04,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1495446231, now seen corresponding path program 1 times [2022-11-20 09:28:04,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:04,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729914290] [2022-11-20 09:28:04,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:04,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,571 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 09:28:04,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:04,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729914290] [2022-11-20 09:28:04,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729914290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:04,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:04,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:28:04,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849028121] [2022-11-20 09:28:04,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:04,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:04,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:04,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:04,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:04,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 126 [2022-11-20 09:28:04,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 127 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:04,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:04,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 126 [2022-11-20 09:28:04,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:04,636 INFO L130 PetriNetUnfolder]: 8/198 cut-off events. [2022-11-20 09:28:04,636 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-20 09:28:04,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 198 events. 8/198 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 444 event pairs, 2 based on Foata normal form. 4/195 useless extension candidates. Maximal degree in co-relation 240. Up to 23 conditions per place. [2022-11-20 09:28:04,637 INFO L137 encePairwiseOnDemand]: 120/126 looper letters, 11 selfloop transitions, 6 changer transitions 1/109 dead transitions. [2022-11-20 09:28:04,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 109 transitions, 301 flow [2022-11-20 09:28:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:04,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:04,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-11-20 09:28:04,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2022-11-20 09:28:04,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-11-20 09:28:04,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-11-20 09:28:04,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:04,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-11-20 09:28:04,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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 09:28:04,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:04,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:04,644 INFO L175 Difference]: Start difference. First operand has 126 places, 127 transitions, 360 flow. Second operand 3 states and 344 transitions. [2022-11-20 09:28:04,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 109 transitions, 301 flow [2022-11-20 09:28:04,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 109 transitions, 260 flow, removed 11 selfloop flow, removed 10 redundant places. [2022-11-20 09:28:04,648 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 229 flow [2022-11-20 09:28:04,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2022-11-20 09:28:04,651 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -6 predicate places. [2022-11-20 09:28:04,651 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 229 flow [2022-11-20 09:28:04,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:04,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:04,652 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:04,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:28:04,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting f1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1246420009, now seen corresponding path program 1 times [2022-11-20 09:28:04,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:04,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074896728] [2022-11-20 09:28:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:04,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:04,740 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 09:28:04,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074896728] [2022-11-20 09:28:04,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074896728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:04,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:04,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:04,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150215813] [2022-11-20 09:28:04,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:04,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:04,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:04,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:04,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 126 [2022-11-20 09:28:04,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 09:28:04,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:04,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 126 [2022-11-20 09:28:04,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:04,818 INFO L130 PetriNetUnfolder]: 14/214 cut-off events. [2022-11-20 09:28:04,818 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 09:28:04,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 214 events. 14/214 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 566 event pairs, 12 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 179. Up to 47 conditions per place. [2022-11-20 09:28:04,820 INFO L137 encePairwiseOnDemand]: 123/126 looper letters, 14 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-11-20 09:28:04,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 106 transitions, 263 flow [2022-11-20 09:28:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2022-11-20 09:28:04,822 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8624338624338624 [2022-11-20 09:28:04,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2022-11-20 09:28:04,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2022-11-20 09:28:04,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:04,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2022-11-20 09:28:04,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 09:28:04,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:04,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 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 09:28:04,827 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 229 flow. Second operand 3 states and 326 transitions. [2022-11-20 09:28:04,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 106 transitions, 263 flow [2022-11-20 09:28:04,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 106 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:04,830 INFO L231 Difference]: Finished difference. Result has 113 places, 105 transitions, 225 flow [2022-11-20 09:28:04,831 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=113, PETRI_TRANSITIONS=105} [2022-11-20 09:28:04,833 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -7 predicate places. [2022-11-20 09:28:04,833 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 225 flow [2022-11-20 09:28:04,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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 09:28:04,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:04,834 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:28:04,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:28:04,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-11-20 09:28:04,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:04,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1831624657, now seen corresponding path program 1 times [2022-11-20 09:28:04,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:04,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188533729] [2022-11-20 09:28:04,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:04,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:05,557 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 09:28:05,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:05,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188533729] [2022-11-20 09:28:05,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188533729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:05,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:05,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:05,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978764513] [2022-11-20 09:28:05,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:05,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:05,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:05,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:05,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:05,567 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 126 [2022-11-20 09:28:05,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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 09:28:05,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:05,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 126 [2022-11-20 09:28:05,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:05,635 INFO L130 PetriNetUnfolder]: 2/157 cut-off events. [2022-11-20 09:28:05,636 INFO L131 PetriNetUnfolder]: For 2/14 co-relation queries the response was YES. [2022-11-20 09:28:05,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 157 events. 2/157 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 215 event pairs, 2 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 141. Up to 15 conditions per place. [2022-11-20 09:28:05,637 INFO L137 encePairwiseOnDemand]: 121/126 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2022-11-20 09:28:05,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 104 transitions, 257 flow [2022-11-20 09:28:05,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 630 transitions. [2022-11-20 09:28:05,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-20 09:28:05,640 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 630 transitions. [2022-11-20 09:28:05,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 630 transitions. [2022-11-20 09:28:05,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:05,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 630 transitions. [2022-11-20 09:28:05,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.0) internal successors, (630), 6 states have internal predecessors, (630), 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 09:28:05,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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 09:28:05,648 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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 09:28:05,648 INFO L175 Difference]: Start difference. First operand has 113 places, 105 transitions, 225 flow. Second operand 6 states and 630 transitions. [2022-11-20 09:28:05,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 104 transitions, 257 flow [2022-11-20 09:28:05,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:05,650 INFO L231 Difference]: Finished difference. Result has 115 places, 0 transitions, 0 flow [2022-11-20 09:28:05,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=115, PETRI_TRANSITIONS=0} [2022-11-20 09:28:05,652 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -5 predicate places. [2022-11-20 09:28:05,653 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 0 transitions, 0 flow [2022-11-20 09:28:05,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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 09:28:05,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-11-20 09:28:05,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-11-20 09:28:05,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 14 remaining) [2022-11-20 09:28:05,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 14 remaining) [2022-11-20 09:28:05,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-11-20 09:28:05,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-11-20 09:28:05,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err2ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-11-20 09:28:05,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err3ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-11-20 09:28:05,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-11-20 09:28:05,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-11-20 09:28:05,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-11-20 09:28:05,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-11-20 09:28:05,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f1Err3ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-11-20 09:28:05,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-11-20 09:28:05,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:28:05,662 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:05,669 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:28:05,669 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:28:05,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:28:05 BasicIcfg [2022-11-20 09:28:05,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:28:05,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:28:05,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:28:05,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:28:05,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:01" (3/4) ... [2022-11-20 09:28:05,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:28:05,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2022-11-20 09:28:05,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2022-11-20 09:28:05,696 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 09:28:05,696 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 09:28:05,697 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 09:28:05,697 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:28:05,747 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:28:05,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:28:05,748 INFO L158 Benchmark]: Toolchain (without parser) took 5805.74ms. Allocated memory was 142.6MB in the beginning and 237.0MB in the end (delta: 94.4MB). Free memory was 108.8MB in the beginning and 155.0MB in the end (delta: -46.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,748 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:05,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 786.16ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 70.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.10ms. Allocated memory is still 142.6MB. Free memory was 70.6MB in the beginning and 67.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,749 INFO L158 Benchmark]: Boogie Preprocessor took 44.06ms. Allocated memory is still 142.6MB. Free memory was 67.2MB in the beginning and 63.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,750 INFO L158 Benchmark]: RCFGBuilder took 804.55ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 63.9MB in the beginning and 161.6MB in the end (delta: -97.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,750 INFO L158 Benchmark]: TraceAbstraction took 4021.79ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 160.7MB in the beginning and 158.2MB in the end (delta: 2.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,751 INFO L158 Benchmark]: Witness Printer took 71.20ms. Allocated memory is still 237.0MB. Free memory was 158.2MB in the beginning and 155.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:28:05,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 786.16ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 70.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.10ms. Allocated memory is still 142.6MB. Free memory was 70.6MB in the beginning and 67.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.06ms. Allocated memory is still 142.6MB. Free memory was 67.2MB in the beginning and 63.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 804.55ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 63.9MB in the beginning and 161.6MB in the end (delta: -97.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4021.79ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 160.7MB in the beginning and 158.2MB in the end (delta: 2.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Witness Printer took 71.20ms. Allocated memory is still 237.0MB. Free memory was 158.2MB in the beginning and 155.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1378]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1379]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1356]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1358]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1359]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1360]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1366]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 178 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: 3.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 181 IncrementalHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 83 mSDtfsCounter, 181 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 418 ConstructedInterpolants, 0 QuantifiedInterpolants, 672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 09:28:05,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d516ce88-a075-45e5-8abd-5bfe46206437/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 Result: TRUE