./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8 --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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- 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-2329fc7 [2022-12-13 20:42:28,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:42:28,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:42:28,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:42:28,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:42:28,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:42:28,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:42:28,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:42:28,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:42:28,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:42:28,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:42:28,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:42:28,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:42:28,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:42:28,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:42:28,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:42:28,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:42:28,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:42:28,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:42:28,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:42:28,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:42:28,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:42:28,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:42:28,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:42:28,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:42:28,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:42:28,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:42:28,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:42:28,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:42:28,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:42:28,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:42:28,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:42:28,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:42:28,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:42:28,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:42:28,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:42:28,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:42:28,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:42:28,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:42:28,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:42:28,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:42:28,248 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:42:28,273 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:42:28,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:42:28,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:42:28,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:42:28,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:42:28,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:42:28,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:42:28,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:42:28,279 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:42:28,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:42:28,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:42:28,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:42:28,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:42:28,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:42:28,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:42:28,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:42:28,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:42:28,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:42:28,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:42:28,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:42:28,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:42:28,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:42:28,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:42:28,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:42:28,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:42:28,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:42:28,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:42:28,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:42:28,283 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:42:28,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:42:28,284 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:42:28,284 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2022-12-13 20:42:28,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:42:28,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:42:28,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:42:28,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:42:28,475 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:42:28,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-12-13 20:42:30,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:42:31,146 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:42:31,147 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2022-12-13 20:42:31,155 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/data/1d08749ac/59564a7299164486a43cb7613e50212d/FLAGf1fc091a8 [2022-12-13 20:42:31,526 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/data/1d08749ac/59564a7299164486a43cb7613e50212d [2022-12-13 20:42:31,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:42:31,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:42:31,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:42:31,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:42:31,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:42:31,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a15ee37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31, skipping insertion in model container [2022-12-13 20:42:31,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:42:31,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:42:31,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:42:31,764 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:42:31,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:42:31,816 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:42:31,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31 WrapperNode [2022-12-13 20:42:31,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:42:31,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:42:31,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:42:31,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:42:31,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,849 INFO L138 Inliner]: procedures = 161, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-12-13 20:42:31,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:42:31,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:42:31,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:42:31,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:42:31,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,871 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:42:31,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:42:31,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:42:31,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:42:31,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (1/1) ... [2022-12-13 20:42:31,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:42:31,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:42:31,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:42:31,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:42:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:42:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:42:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:42:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:42:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:42:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 20:42:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 20:42:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:42:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:42:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:42:31,935 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:42:32,041 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:42:32,042 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:42:32,226 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:42:32,232 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:42:32,232 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:42:32,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:42:32 BoogieIcfgContainer [2022-12-13 20:42:32,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:42:32,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:42:32,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:42:32,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:42:32,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:42:31" (1/3) ... [2022-12-13 20:42:32,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d55967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:42:32, skipping insertion in model container [2022-12-13 20:42:32,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:42:31" (2/3) ... [2022-12-13 20:42:32,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d55967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:42:32, skipping insertion in model container [2022-12-13 20:42:32,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:42:32" (3/3) ... [2022-12-13 20:42:32,240 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2022-12-13 20:42:32,247 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:42:32,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:42:32,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 20:42:32,255 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:42:32,300 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:42:32,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 105 transitions, 215 flow [2022-12-13 20:42:32,363 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-13 20:42:32,364 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:42:32,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-13 20:42:32,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 105 transitions, 215 flow [2022-12-13 20:42:32,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 104 transitions, 211 flow [2022-12-13 20:42:32,372 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:42:32,380 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 104 transitions, 211 flow [2022-12-13 20:42:32,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 104 transitions, 211 flow [2022-12-13 20:42:32,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 104 transitions, 211 flow [2022-12-13 20:42:32,403 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-13 20:42:32,403 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:42:32,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2022-12-13 20:42:32,405 INFO L119 LiptonReduction]: Number of co-enabled transitions 2600 [2022-12-13 20:42:33,422 INFO L134 LiptonReduction]: Checked pairs total: 13320 [2022-12-13 20:42:33,422 INFO L136 LiptonReduction]: Total number of compositions: 53 [2022-12-13 20:42:33,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:42:33,444 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;@5e78cbf5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:42:33,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-13 20:42:33,449 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-13 20:42:33,449 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:42:33,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:33,450 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:33,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:33,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:33,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1841938459, now seen corresponding path program 1 times [2022-12-13 20:42:33,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:33,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889802024] [2022-12-13 20:42:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:33,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:33,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:33,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889802024] [2022-12-13 20:42:33,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889802024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:33,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:33,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:42:33,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537241998] [2022-12-13 20:42:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:33,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:42:33,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:33,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:42:33,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:42:33,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 158 [2022-12-13 20:42:33,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2022-12-13 20:42:33,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:33,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 158 [2022-12-13 20:42:33,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:33,763 INFO L130 PetriNetUnfolder]: 61/286 cut-off events. [2022-12-13 20:42:33,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:42:33,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 286 events. 61/286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1228 event pairs, 60 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 417. Up to 141 conditions per place. [2022-12-13 20:42:33,766 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 19 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2022-12-13 20:42:33,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 151 flow [2022-12-13 20:42:33,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:42:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:42:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2022-12-13 20:42:33,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6729957805907173 [2022-12-13 20:42:33,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 319 transitions. [2022-12-13 20:42:33,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 319 transitions. [2022-12-13 20:42:33,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:33,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 319 transitions. [2022-12-13 20:42:33,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-12-13 20:42:33,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 20:42:33,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 20:42:33,787 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 107 flow. Second operand 3 states and 319 transitions. [2022-12-13 20:42:33,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 151 flow [2022-12-13 20:42:33,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:42:33,791 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 118 flow [2022-12-13 20:42:33,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2022-12-13 20:42:33,795 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 2 predicate places. [2022-12-13 20:42:33,795 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 118 flow [2022-12-13 20:42:33,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2022-12-13 20:42:33,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:33,796 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:33,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:42:33,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1441952774, now seen corresponding path program 1 times [2022-12-13 20:42:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:33,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108689736] [2022-12-13 20:42:33,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:33,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:33,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:33,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108689736] [2022-12-13 20:42:33,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108689736] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:42:33,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590744587] [2022-12-13 20:42:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:33,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:42:33,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:42:33,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:42:33,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:42:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:33,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:42:33,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:42:33,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:33,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:42:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:33,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590744587] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:42:33,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:42:33,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 20:42:33,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877565287] [2022-12-13 20:42:33,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:42:33,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:42:33,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:33,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:42:33,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:42:33,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 158 [2022-12-13 20:42:33,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 99.57142857142857) internal successors, (697), 7 states have internal predecessors, (697), 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) [2022-12-13 20:42:33,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:33,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 158 [2022-12-13 20:42:33,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:34,080 INFO L130 PetriNetUnfolder]: 61/289 cut-off events. [2022-12-13 20:42:34,080 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:42:34,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 289 events. 61/289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1228 event pairs, 60 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 436. Up to 141 conditions per place. [2022-12-13 20:42:34,082 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 19 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2022-12-13 20:42:34,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 178 flow [2022-12-13 20:42:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:42:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:42:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 615 transitions. [2022-12-13 20:42:34,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6487341772151899 [2022-12-13 20:42:34,085 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 615 transitions. [2022-12-13 20:42:34,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 615 transitions. [2022-12-13 20:42:34,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:34,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 615 transitions. [2022-12-13 20:42:34,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.5) internal successors, (615), 6 states have internal predecessors, (615), 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) [2022-12-13 20:42:34,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:34,089 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:34,089 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 118 flow. Second operand 6 states and 615 transitions. [2022-12-13 20:42:34,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 178 flow [2022-12-13 20:42:34,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 174 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 20:42:34,090 INFO L231 Difference]: Finished difference. Result has 64 places, 56 transitions, 150 flow [2022-12-13 20:42:34,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=150, PETRI_PLACES=64, PETRI_TRANSITIONS=56} [2022-12-13 20:42:34,091 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2022-12-13 20:42:34,091 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 56 transitions, 150 flow [2022-12-13 20:42:34,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 99.57142857142857) internal successors, (697), 7 states have internal predecessors, (697), 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) [2022-12-13 20:42:34,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:34,092 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:34,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:42:34,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:42:34,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1941118245, now seen corresponding path program 2 times [2022-12-13 20:42:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:34,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153624179] [2022-12-13 20:42:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 20:42:34,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:34,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153624179] [2022-12-13 20:42:34,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153624179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:34,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:34,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:42:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817132317] [2022-12-13 20:42:34,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:34,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:42:34,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:34,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:42:34,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:42:34,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 158 [2022-12-13 20:42:34,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 56 transitions, 150 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2022-12-13 20:42:34,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:34,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 158 [2022-12-13 20:42:34,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:35,097 INFO L130 PetriNetUnfolder]: 391/935 cut-off events. [2022-12-13 20:42:35,097 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:42:35,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1808 conditions, 935 events. 391/935 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4874 event pairs, 118 based on Foata normal form. 0/904 useless extension candidates. Maximal degree in co-relation 1775. Up to 387 conditions per place. [2022-12-13 20:42:35,103 INFO L137 encePairwiseOnDemand]: 136/158 looper letters, 134 selfloop transitions, 42 changer transitions 0/190 dead transitions. [2022-12-13 20:42:35,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 190 transitions, 770 flow [2022-12-13 20:42:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:42:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:42:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2022-12-13 20:42:35,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.689873417721519 [2022-12-13 20:42:35,106 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 654 transitions. [2022-12-13 20:42:35,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 654 transitions. [2022-12-13 20:42:35,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:35,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 654 transitions. [2022-12-13 20:42:35,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 109.0) internal successors, (654), 6 states have internal predecessors, (654), 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) [2022-12-13 20:42:35,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:35,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:35,112 INFO L175 Difference]: Start difference. First operand has 64 places, 56 transitions, 150 flow. Second operand 6 states and 654 transitions. [2022-12-13 20:42:35,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 190 transitions, 770 flow [2022-12-13 20:42:35,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 190 transitions, 756 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 20:42:35,117 INFO L231 Difference]: Finished difference. Result has 73 places, 102 transitions, 452 flow [2022-12-13 20:42:35,117 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=452, PETRI_PLACES=73, PETRI_TRANSITIONS=102} [2022-12-13 20:42:35,118 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 18 predicate places. [2022-12-13 20:42:35,118 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 102 transitions, 452 flow [2022-12-13 20:42:35,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2022-12-13 20:42:35,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:35,119 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:35,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:42:35,119 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:35,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:35,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2079616254, now seen corresponding path program 1 times [2022-12-13 20:42:35,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:35,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741886013] [2022-12-13 20:42:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:35,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 20:42:35,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:35,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741886013] [2022-12-13 20:42:35,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741886013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:35,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:35,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:42:35,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816977976] [2022-12-13 20:42:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:35,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:42:35,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:35,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:42:35,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:42:35,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 158 [2022-12-13 20:42:35,565 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 102 transitions, 452 flow. Second operand has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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) [2022-12-13 20:42:35,565 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:35,565 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 158 [2022-12-13 20:42:35,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:35,735 INFO L130 PetriNetUnfolder]: 229/700 cut-off events. [2022-12-13 20:42:35,735 INFO L131 PetriNetUnfolder]: For 287/319 co-relation queries the response was YES. [2022-12-13 20:42:35,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 700 events. 229/700 cut-off events. For 287/319 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3923 event pairs, 100 based on Foata normal form. 2/672 useless extension candidates. Maximal degree in co-relation 1699. Up to 295 conditions per place. [2022-12-13 20:42:35,741 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 67 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2022-12-13 20:42:35,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 125 transitions, 666 flow [2022-12-13 20:42:35,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:42:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:42:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 599 transitions. [2022-12-13 20:42:35,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6318565400843882 [2022-12-13 20:42:35,743 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 599 transitions. [2022-12-13 20:42:35,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 599 transitions. [2022-12-13 20:42:35,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:35,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 599 transitions. [2022-12-13 20:42:35,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.83333333333333) internal successors, (599), 6 states have internal predecessors, (599), 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) [2022-12-13 20:42:35,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:35,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:35,748 INFO L175 Difference]: Start difference. First operand has 73 places, 102 transitions, 452 flow. Second operand 6 states and 599 transitions. [2022-12-13 20:42:35,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 125 transitions, 666 flow [2022-12-13 20:42:35,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 125 transitions, 666 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:42:35,754 INFO L231 Difference]: Finished difference. Result has 77 places, 101 transitions, 460 flow [2022-12-13 20:42:35,755 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=460, PETRI_PLACES=77, PETRI_TRANSITIONS=101} [2022-12-13 20:42:35,755 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 22 predicate places. [2022-12-13 20:42:35,755 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 101 transitions, 460 flow [2022-12-13 20:42:35,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 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) [2022-12-13 20:42:35,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:35,756 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:35,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:42:35,756 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:35,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:35,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1730328618, now seen corresponding path program 1 times [2022-12-13 20:42:35,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:35,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155853832] [2022-12-13 20:42:35,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:35,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:35,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:35,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155853832] [2022-12-13 20:42:35,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155853832] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:42:35,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829400809] [2022-12-13 20:42:35,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:35,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:42:35,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:42:35,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:42:35,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:42:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:35,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 20:42:35,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:42:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:35,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:42:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:42:35,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829400809] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:42:35,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:42:35,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 20:42:35,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040096077] [2022-12-13 20:42:35,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:42:35,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:42:35,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:35,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:42:35,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:42:35,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 158 [2022-12-13 20:42:35,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 101 transitions, 460 flow. Second operand has 13 states, 13 states have (on average 99.46153846153847) internal successors, (1293), 13 states have internal predecessors, (1293), 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) [2022-12-13 20:42:35,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:35,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 158 [2022-12-13 20:42:35,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:36,072 INFO L130 PetriNetUnfolder]: 182/627 cut-off events. [2022-12-13 20:42:36,073 INFO L131 PetriNetUnfolder]: For 277/304 co-relation queries the response was YES. [2022-12-13 20:42:36,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 627 events. 182/627 cut-off events. For 277/304 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3536 event pairs, 89 based on Foata normal form. 8/607 useless extension candidates. Maximal degree in co-relation 1504. Up to 266 conditions per place. [2022-12-13 20:42:36,076 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 35 selfloop transitions, 11 changer transitions 0/107 dead transitions. [2022-12-13 20:42:36,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 107 transitions, 588 flow [2022-12-13 20:42:36,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 20:42:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 20:42:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1212 transitions. [2022-12-13 20:42:36,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6392405063291139 [2022-12-13 20:42:36,078 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1212 transitions. [2022-12-13 20:42:36,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1212 transitions. [2022-12-13 20:42:36,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:36,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1212 transitions. [2022-12-13 20:42:36,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 101.0) internal successors, (1212), 12 states have internal predecessors, (1212), 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) [2022-12-13 20:42:36,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 158.0) internal successors, (2054), 13 states have internal predecessors, (2054), 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) [2022-12-13 20:42:36,082 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 158.0) internal successors, (2054), 13 states have internal predecessors, (2054), 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) [2022-12-13 20:42:36,082 INFO L175 Difference]: Start difference. First operand has 77 places, 101 transitions, 460 flow. Second operand 12 states and 1212 transitions. [2022-12-13 20:42:36,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 107 transitions, 588 flow [2022-12-13 20:42:36,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 578 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 20:42:36,086 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 534 flow [2022-12-13 20:42:36,086 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=534, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2022-12-13 20:42:36,086 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 34 predicate places. [2022-12-13 20:42:36,086 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 534 flow [2022-12-13 20:42:36,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 99.46153846153847) internal successors, (1293), 13 states have internal predecessors, (1293), 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) [2022-12-13 20:42:36,087 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:36,087 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:36,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 20:42:36,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:42:36,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:36,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash -157052938, now seen corresponding path program 2 times [2022-12-13 20:42:36,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:36,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51420256] [2022-12-13 20:42:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:36,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:36,519 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 20:42:36,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:36,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51420256] [2022-12-13 20:42:36,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51420256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:36,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:36,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:42:36,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893368180] [2022-12-13 20:42:36,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:36,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:42:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:42:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:42:36,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 158 [2022-12-13 20:42:36,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 534 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2022-12-13 20:42:36,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:36,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 158 [2022-12-13 20:42:36,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:37,010 INFO L130 PetriNetUnfolder]: 493/1175 cut-off events. [2022-12-13 20:42:37,010 INFO L131 PetriNetUnfolder]: For 613/622 co-relation queries the response was YES. [2022-12-13 20:42:37,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3401 conditions, 1175 events. 493/1175 cut-off events. For 613/622 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6272 event pairs, 193 based on Foata normal form. 28/1196 useless extension candidates. Maximal degree in co-relation 3321. Up to 791 conditions per place. [2022-12-13 20:42:37,014 INFO L137 encePairwiseOnDemand]: 142/158 looper letters, 140 selfloop transitions, 46 changer transitions 6/206 dead transitions. [2022-12-13 20:42:37,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 206 transitions, 1294 flow [2022-12-13 20:42:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:42:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:42:37,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 600 transitions. [2022-12-13 20:42:37,016 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6329113924050633 [2022-12-13 20:42:37,016 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 600 transitions. [2022-12-13 20:42:37,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 600 transitions. [2022-12-13 20:42:37,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:37,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 600 transitions. [2022-12-13 20:42:37,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2022-12-13 20:42:37,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:37,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:37,019 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 534 flow. Second operand 6 states and 600 transitions. [2022-12-13 20:42:37,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 206 transitions, 1294 flow [2022-12-13 20:42:37,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 206 transitions, 1246 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-12-13 20:42:37,023 INFO L231 Difference]: Finished difference. Result has 93 places, 150 transitions, 909 flow [2022-12-13 20:42:37,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=909, PETRI_PLACES=93, PETRI_TRANSITIONS=150} [2022-12-13 20:42:37,024 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 38 predicate places. [2022-12-13 20:42:37,024 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 150 transitions, 909 flow [2022-12-13 20:42:37,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 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) [2022-12-13 20:42:37,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:37,024 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:37,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:42:37,025 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:37,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1629245405, now seen corresponding path program 1 times [2022-12-13 20:42:37,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:37,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171835034] [2022-12-13 20:42:37,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:37,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:37,209 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 20:42:37,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:37,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171835034] [2022-12-13 20:42:37,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171835034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:37,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:37,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:42:37,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197999164] [2022-12-13 20:42:37,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:37,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:42:37,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:37,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:42:37,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:42:37,441 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 158 [2022-12-13 20:42:37,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 150 transitions, 909 flow. Second operand has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 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) [2022-12-13 20:42:37,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:37,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 158 [2022-12-13 20:42:37,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:37,609 INFO L130 PetriNetUnfolder]: 307/897 cut-off events. [2022-12-13 20:42:37,609 INFO L131 PetriNetUnfolder]: For 1214/1277 co-relation queries the response was YES. [2022-12-13 20:42:37,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2853 conditions, 897 events. 307/897 cut-off events. For 1214/1277 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5175 event pairs, 108 based on Foata normal form. 18/889 useless extension candidates. Maximal degree in co-relation 2793. Up to 363 conditions per place. [2022-12-13 20:42:37,613 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 87 selfloop transitions, 5 changer transitions 0/173 dead transitions. [2022-12-13 20:42:37,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 173 transitions, 1187 flow [2022-12-13 20:42:37,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:42:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:42:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 581 transitions. [2022-12-13 20:42:37,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6128691983122363 [2022-12-13 20:42:37,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 581 transitions. [2022-12-13 20:42:37,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 581 transitions. [2022-12-13 20:42:37,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:37,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 581 transitions. [2022-12-13 20:42:37,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.83333333333333) internal successors, (581), 6 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:42:37,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:37,619 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:37,619 INFO L175 Difference]: Start difference. First operand has 93 places, 150 transitions, 909 flow. Second operand 6 states and 581 transitions. [2022-12-13 20:42:37,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 173 transitions, 1187 flow [2022-12-13 20:42:37,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 173 transitions, 1153 flow, removed 17 selfloop flow, removed 0 redundant places. [2022-12-13 20:42:37,630 INFO L231 Difference]: Finished difference. Result has 97 places, 149 transitions, 883 flow [2022-12-13 20:42:37,630 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=883, PETRI_PLACES=97, PETRI_TRANSITIONS=149} [2022-12-13 20:42:37,631 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 42 predicate places. [2022-12-13 20:42:37,631 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 149 transitions, 883 flow [2022-12-13 20:42:37,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 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) [2022-12-13 20:42:37,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:37,631 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:37,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:42:37,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:37,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:37,632 INFO L85 PathProgramCache]: Analyzing trace with hash 421210502, now seen corresponding path program 1 times [2022-12-13 20:42:37,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:37,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887178839] [2022-12-13 20:42:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:37,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 20:42:37,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:37,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887178839] [2022-12-13 20:42:37,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887178839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:37,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:37,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:42:37,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116661171] [2022-12-13 20:42:37,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:37,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:42:37,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:37,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:42:37,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:42:38,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 158 [2022-12-13 20:42:38,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 149 transitions, 883 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2022-12-13 20:42:38,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:38,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 158 [2022-12-13 20:42:38,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:38,349 INFO L130 PetriNetUnfolder]: 603/1392 cut-off events. [2022-12-13 20:42:38,350 INFO L131 PetriNetUnfolder]: For 1913/1931 co-relation queries the response was YES. [2022-12-13 20:42:38,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4892 conditions, 1392 events. 603/1392 cut-off events. For 1913/1931 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7638 event pairs, 204 based on Foata normal form. 26/1408 useless extension candidates. Maximal degree in co-relation 4831. Up to 905 conditions per place. [2022-12-13 20:42:38,356 INFO L137 encePairwiseOnDemand]: 141/158 looper letters, 144 selfloop transitions, 58 changer transitions 28/243 dead transitions. [2022-12-13 20:42:38,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 243 transitions, 1823 flow [2022-12-13 20:42:38,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:42:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:42:38,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 582 transitions. [2022-12-13 20:42:38,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6139240506329114 [2022-12-13 20:42:38,357 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 582 transitions. [2022-12-13 20:42:38,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 582 transitions. [2022-12-13 20:42:38,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:38,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 582 transitions. [2022-12-13 20:42:38,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.0) internal successors, (582), 6 states have internal predecessors, (582), 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) [2022-12-13 20:42:38,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:38,359 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 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) [2022-12-13 20:42:38,359 INFO L175 Difference]: Start difference. First operand has 97 places, 149 transitions, 883 flow. Second operand 6 states and 582 transitions. [2022-12-13 20:42:38,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 243 transitions, 1823 flow [2022-12-13 20:42:38,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 243 transitions, 1813 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 20:42:38,368 INFO L231 Difference]: Finished difference. Result has 101 places, 181 transitions, 1302 flow [2022-12-13 20:42:38,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1302, PETRI_PLACES=101, PETRI_TRANSITIONS=181} [2022-12-13 20:42:38,368 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 46 predicate places. [2022-12-13 20:42:38,368 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 181 transitions, 1302 flow [2022-12-13 20:42:38,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2022-12-13 20:42:38,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:42:38,369 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:42:38,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:42:38,369 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2022-12-13 20:42:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:42:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash -619584515, now seen corresponding path program 1 times [2022-12-13 20:42:38,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:42:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424739595] [2022-12-13 20:42:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:42:38,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:42:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:42:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 20:42:38,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:42:38,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424739595] [2022-12-13 20:42:38,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424739595] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:42:38,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:42:38,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:42:38,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150319767] [2022-12-13 20:42:38,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:42:38,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:42:38,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:42:38,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:42:38,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:42:38,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 158 [2022-12-13 20:42:38,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 181 transitions, 1302 flow. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2022-12-13 20:42:38,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:42:38,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 158 [2022-12-13 20:42:38,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:42:38,552 INFO L130 PetriNetUnfolder]: 32/193 cut-off events. [2022-12-13 20:42:38,553 INFO L131 PetriNetUnfolder]: For 303/303 co-relation queries the response was YES. [2022-12-13 20:42:38,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 193 events. 32/193 cut-off events. For 303/303 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 608 event pairs, 6 based on Foata normal form. 10/201 useless extension candidates. Maximal degree in co-relation 574. Up to 70 conditions per place. [2022-12-13 20:42:38,554 INFO L137 encePairwiseOnDemand]: 154/158 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2022-12-13 20:42:38,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 61 transitions, 372 flow [2022-12-13 20:42:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:42:38,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:42:38,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2022-12-13 20:42:38,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6729957805907173 [2022-12-13 20:42:38,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 319 transitions. [2022-12-13 20:42:38,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 319 transitions. [2022-12-13 20:42:38,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:42:38,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 319 transitions. [2022-12-13 20:42:38,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-12-13 20:42:38,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 20:42:38,556 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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) [2022-12-13 20:42:38,556 INFO L175 Difference]: Start difference. First operand has 101 places, 181 transitions, 1302 flow. Second operand 3 states and 319 transitions. [2022-12-13 20:42:38,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 61 transitions, 372 flow [2022-12-13 20:42:38,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 242 flow, removed 27 selfloop flow, removed 28 redundant places. [2022-12-13 20:42:38,558 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2022-12-13 20:42:38,558 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2022-12-13 20:42:38,559 INFO L288 CegarLoopForPetriNet]: 55 programPoint places, 16 predicate places. [2022-12-13 20:42:38,559 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2022-12-13 20:42:38,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2022-12-13 20:42:38,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2022-12-13 20:42:38,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2022-12-13 20:42:38,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:42:38,562 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2022-12-13 20:42:38,566 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:42:38,566 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:42:38,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:42:38 BasicIcfg [2022-12-13 20:42:38,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:42:38,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:42:38,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:42:38,568 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:42:38,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:42:32" (3/4) ... [2022-12-13 20:42:38,571 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 20:42:38,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 20:42:38,578 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-13 20:42:38,578 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 20:42:38,578 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 20:42:38,600 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:42:38,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:42:38,601 INFO L158 Benchmark]: Toolchain (without parser) took 7071.01ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 121.8MB in the beginning and 91.1MB in the end (delta: 30.6MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,601 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 159.4MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:42:38,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.54ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 102.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.33ms. Allocated memory is still 159.4MB. Free memory was 102.9MB in the beginning and 100.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,602 INFO L158 Benchmark]: Boogie Preprocessor took 24.13ms. Allocated memory is still 159.4MB. Free memory was 100.2MB in the beginning and 98.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,602 INFO L158 Benchmark]: RCFGBuilder took 359.64ms. Allocated memory is still 159.4MB. Free memory was 98.1MB in the beginning and 81.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,602 INFO L158 Benchmark]: TraceAbstraction took 6332.44ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 80.8MB in the beginning and 94.3MB in the end (delta: -13.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,602 INFO L158 Benchmark]: Witness Printer took 32.24ms. Allocated memory is still 192.9MB. Free memory was 94.3MB in the beginning and 91.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:42:38,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 159.4MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.54ms. Allocated memory is still 159.4MB. Free memory was 121.8MB in the beginning and 102.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.33ms. Allocated memory is still 159.4MB. Free memory was 102.9MB in the beginning and 100.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.13ms. Allocated memory is still 159.4MB. Free memory was 100.2MB in the beginning and 98.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.64ms. Allocated memory is still 159.4MB. Free memory was 98.1MB in the beginning and 81.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6332.44ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 80.8MB in the beginning and 94.3MB in the end (delta: -13.5MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 32.24ms. Allocated memory is still 192.9MB. Free memory was 94.3MB in the beginning and 91.1MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 106 PlacesBefore, 55 PlacesAfterwards, 104 TransitionsBefore, 52 TransitionsAfterwards, 2600 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 13320 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2787, independent: 2264, independent conditional: 0, independent unconditional: 2264, dependent: 523, dependent conditional: 0, dependent unconditional: 523, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1060, independent: 964, independent conditional: 0, independent unconditional: 964, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2787, independent: 1300, independent conditional: 0, independent unconditional: 1300, dependent: 427, dependent conditional: 0, dependent unconditional: 427, unknown: 1060, unknown conditional: 0, unknown unconditional: 1060] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 64, Negative conditional cache size: 0, Negative unconditional cache size: 64, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 131 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.2s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 906 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 442 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2179 IncrementalHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 442 mSolverCounterUnsat, 18 mSDtfsCounter, 2179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1302occurred in iteration=8, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 950 SizeOfPredicates, 0 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 240/273 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 20:42:38,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674e1944-64e4-4ffb-8fac-6dff370d57de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE