./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:23:12,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:23:12,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:23:12,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:23:12,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:23:12,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:23:12,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:23:12,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:23:12,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:23:12,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:23:12,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:23:12,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:23:12,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:23:12,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:23:12,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:23:12,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:23:12,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:23:12,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:23:12,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:23:12,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:23:12,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:23:12,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:23:12,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:23:12,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:23:12,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:23:12,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:23:12,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:23:12,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:23:12,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:23:12,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:23:12,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:23:12,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:23:12,281 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:23:12,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:23:12,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:23:12,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:23:12,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:23:12,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:23:12,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:23:12,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:23:12,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:23:12,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:23:12,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:23:12,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:23:12,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:23:12,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:23:12,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:23:12,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:23:12,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:23:12,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:23:12,337 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:23:12,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:23:12,339 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:23:12,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:23:12,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:23:12,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:23:12,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:23:12,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:23:12,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:23:12,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:23:12,341 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:23:12,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:23:12,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:23:12,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:23:12,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:23:12,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:23:12,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:23:12,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:23:12,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:23:12,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:23:12,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:23:12,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:23:12,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:23:12,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:23:12,346 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:23:12,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:23:12,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:23:12,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2022-11-16 12:23:12,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:23:12,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:23:12,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:23:12,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:23:12,670 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:23:12,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-11-16 12:23:12,748 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/data/2a561b9a8/bc0cab5bf7ce46ea8dbb20b4ac108e72/FLAG95ea9951b [2022-11-16 12:23:13,368 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:23:13,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-11-16 12:23:13,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/data/2a561b9a8/bc0cab5bf7ce46ea8dbb20b4ac108e72/FLAG95ea9951b [2022-11-16 12:23:13,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/data/2a561b9a8/bc0cab5bf7ce46ea8dbb20b4ac108e72 [2022-11-16 12:23:13,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:23:13,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:23:13,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:23:13,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:23:13,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:23:13,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:23:13" (1/1) ... [2022-11-16 12:23:13,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d875da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:13, skipping insertion in model container [2022-11-16 12:23:13,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:23:13" (1/1) ... [2022-11-16 12:23:13,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:23:13,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:23:14,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:23:14,547 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:23:14,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:23:14,699 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:23:14,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14 WrapperNode [2022-11-16 12:23:14,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:23:14,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:23:14,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:23:14,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:23:14,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,775 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-11-16 12:23:14,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:23:14,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:23:14,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:23:14,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:23:14,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:23:14,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:23:14,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:23:14,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:23:14,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (1/1) ... [2022-11-16 12:23:14,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:23:14,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:23:14,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:23:14,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:23:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:23:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:23:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:23:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:23:14,920 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:23:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:23:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:23:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:23:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:23:14,921 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:23:14,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:23:14,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:23:14,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:23:14,924 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:23:15,148 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:23:15,150 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:23:15,752 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:23:15,762 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:23:15,763 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:23:15,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:15 BoogieIcfgContainer [2022-11-16 12:23:15,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:23:15,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:23:15,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:23:15,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:23:15,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:23:13" (1/3) ... [2022-11-16 12:23:15,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a915992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:23:15, skipping insertion in model container [2022-11-16 12:23:15,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:14" (2/3) ... [2022-11-16 12:23:15,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a915992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:23:15, skipping insertion in model container [2022-11-16 12:23:15,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:15" (3/3) ... [2022-11-16 12:23:15,776 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2022-11-16 12:23:15,786 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:23:15,799 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:23:15,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-16 12:23:15,800 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:23:15,879 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:23:15,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 365 flow [2022-11-16 12:23:16,011 INFO L130 PetriNetUnfolder]: 0/179 cut-off events. [2022-11-16 12:23:16,011 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:23:16,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 12:23:16,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 180 transitions, 365 flow [2022-11-16 12:23:16,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 179 transitions, 361 flow [2022-11-16 12:23:16,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:23:16,067 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;@6a81c1e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:23:16,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-16 12:23:16,091 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2022-11-16 12:23:16,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:23:16,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:16,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:16,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2052627791, now seen corresponding path program 1 times [2022-11-16 12:23:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:16,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335422209] [2022-11-16 12:23:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:16,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:16,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335422209] [2022-11-16 12:23:16,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335422209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:16,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:16,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:16,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76103467] [2022-11-16 12:23:16,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:16,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:16,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:17,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:17,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:17,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 180 [2022-11-16 12:23:17,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 179 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:17,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:17,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 180 [2022-11-16 12:23:17,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:17,525 INFO L130 PetriNetUnfolder]: 144/631 cut-off events. [2022-11-16 12:23:17,525 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:23:17,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 631 events. 144/631 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2638 event pairs, 144 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 850. Up to 346 conditions per place. [2022-11-16 12:23:17,539 INFO L137 encePairwiseOnDemand]: 168/180 looper letters, 57 selfloop transitions, 10 changer transitions 0/177 dead transitions. [2022-11-16 12:23:17,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 177 transitions, 491 flow [2022-11-16 12:23:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:23:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:23:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 735 transitions. [2022-11-16 12:23:17,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2022-11-16 12:23:17,572 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 735 transitions. [2022-11-16 12:23:17,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 735 transitions. [2022-11-16 12:23:17,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:17,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 735 transitions. [2022-11-16 12:23:17,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:17,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:17,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:17,601 INFO L175 Difference]: Start difference. First operand has 183 places, 179 transitions, 361 flow. Second operand 6 states and 735 transitions. [2022-11-16 12:23:17,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 177 transitions, 491 flow [2022-11-16 12:23:17,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 177 transitions, 490 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:23:17,612 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 376 flow [2022-11-16 12:23:17,615 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2022-11-16 12:23:17,625 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, 2 predicate places. [2022-11-16 12:23:17,626 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 376 flow [2022-11-16 12:23:17,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:17,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:17,628 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:17,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:23:17,629 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:17,631 INFO L85 PathProgramCache]: Analyzing trace with hash 320042173, now seen corresponding path program 1 times [2022-11-16 12:23:17,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:17,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564996320] [2022-11-16 12:23:17,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:17,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:18,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:18,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564996320] [2022-11-16 12:23:18,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564996320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:18,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:18,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253296757] [2022-11-16 12:23:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:18,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:18,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:18,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:18,209 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 180 [2022-11-16 12:23:18,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:18,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 180 [2022-11-16 12:23:18,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:18,641 INFO L130 PetriNetUnfolder]: 144/629 cut-off events. [2022-11-16 12:23:18,641 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:23:18,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 629 events. 144/629 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2633 event pairs, 144 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 884. Up to 344 conditions per place. [2022-11-16 12:23:18,647 INFO L137 encePairwiseOnDemand]: 168/180 looper letters, 55 selfloop transitions, 10 changer transitions 0/175 dead transitions. [2022-11-16 12:23:18,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 175 transitions, 502 flow [2022-11-16 12:23:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:23:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:23:18,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 733 transitions. [2022-11-16 12:23:18,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6787037037037037 [2022-11-16 12:23:18,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 733 transitions. [2022-11-16 12:23:18,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 733 transitions. [2022-11-16 12:23:18,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:18,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 733 transitions. [2022-11-16 12:23:18,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,657 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 376 flow. Second operand 6 states and 733 transitions. [2022-11-16 12:23:18,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 175 transitions, 502 flow [2022-11-16 12:23:18,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 175 transitions, 482 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:23:18,666 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 372 flow [2022-11-16 12:23:18,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2022-11-16 12:23:18,668 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, 0 predicate places. [2022-11-16 12:23:18,668 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 372 flow [2022-11-16 12:23:18,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:18,669 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:18,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:23:18,670 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash -170333930, now seen corresponding path program 1 times [2022-11-16 12:23:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:18,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217764950] [2022-11-16 12:23:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:18,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:18,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217764950] [2022-11-16 12:23:18,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217764950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:18,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:18,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:23:18,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434419212] [2022-11-16 12:23:18,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:18,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:23:18,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:18,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:23:18,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:23:18,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 180 [2022-11-16 12:23:18,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:18,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 180 [2022-11-16 12:23:18,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:18,812 INFO L130 PetriNetUnfolder]: 9/290 cut-off events. [2022-11-16 12:23:18,812 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:23:18,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 290 events. 9/290 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 651 event pairs, 9 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 235. Up to 29 conditions per place. [2022-11-16 12:23:18,814 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 10 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2022-11-16 12:23:18,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 174 transitions, 394 flow [2022-11-16 12:23:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:18,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:23:18,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2022-11-16 12:23:18,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9518518518518518 [2022-11-16 12:23:18,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2022-11-16 12:23:18,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2022-11-16 12:23:18,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:18,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2022-11-16 12:23:18,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,820 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 372 flow. Second operand 3 states and 514 transitions. [2022-11-16 12:23:18,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 174 transitions, 394 flow [2022-11-16 12:23:18,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 174 transitions, 374 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:23:18,829 INFO L231 Difference]: Finished difference. Result has 179 places, 174 transitions, 354 flow [2022-11-16 12:23:18,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=179, PETRI_TRANSITIONS=174} [2022-11-16 12:23:18,832 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -4 predicate places. [2022-11-16 12:23:18,833 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 174 transitions, 354 flow [2022-11-16 12:23:18,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:18,833 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:18,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:23:18,834 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:18,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:18,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2000222690, now seen corresponding path program 1 times [2022-11-16 12:23:18,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:18,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637568795] [2022-11-16 12:23:18,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:18,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:18,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:18,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:18,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637568795] [2022-11-16 12:23:18,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637568795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:18,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:18,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:23:18,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376237437] [2022-11-16 12:23:18,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:18,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:23:18,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:18,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:23:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:23:18,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 180 [2022-11-16 12:23:18,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 174 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:18,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 180 [2022-11-16 12:23:18,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:18,972 INFO L130 PetriNetUnfolder]: 0/173 cut-off events. [2022-11-16 12:23:18,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:23:18,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 173 events. 0/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-16 12:23:18,973 INFO L137 encePairwiseOnDemand]: 177/180 looper letters, 7 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:23:18,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 173 transitions, 370 flow [2022-11-16 12:23:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:23:18,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2022-11-16 12:23:18,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9629629629629629 [2022-11-16 12:23:18,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 520 transitions. [2022-11-16 12:23:18,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 520 transitions. [2022-11-16 12:23:18,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:18,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 520 transitions. [2022-11-16 12:23:18,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,984 INFO L175 Difference]: Start difference. First operand has 179 places, 174 transitions, 354 flow. Second operand 3 states and 520 transitions. [2022-11-16 12:23:18,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 173 transitions, 370 flow [2022-11-16 12:23:18,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 173 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:23:18,988 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 352 flow [2022-11-16 12:23:18,989 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2022-11-16 12:23:18,991 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -5 predicate places. [2022-11-16 12:23:18,991 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 352 flow [2022-11-16 12:23:18,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:18,993 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:18,994 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:18,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:23:18,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:18,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:18,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1678385605, now seen corresponding path program 1 times [2022-11-16 12:23:18,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:18,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758402318] [2022-11-16 12:23:18,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:18,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:19,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:19,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758402318] [2022-11-16 12:23:19,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758402318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:19,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:19,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:23:19,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166391705] [2022-11-16 12:23:19,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:19,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:23:19,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:19,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:23:19,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:23:19,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 180 [2022-11-16 12:23:19,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:19,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:19,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 180 [2022-11-16 12:23:19,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:19,175 INFO L130 PetriNetUnfolder]: 4/260 cut-off events. [2022-11-16 12:23:19,176 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:23:19,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 260 events. 4/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 456 event pairs, 2 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2022-11-16 12:23:19,177 INFO L137 encePairwiseOnDemand]: 176/180 looper letters, 7 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:23:19,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 370 flow [2022-11-16 12:23:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:23:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2022-11-16 12:23:19,180 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648148148148148 [2022-11-16 12:23:19,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2022-11-16 12:23:19,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2022-11-16 12:23:19,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:19,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2022-11-16 12:23:19,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:19,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:19,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:19,185 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 352 flow. Second operand 3 states and 521 transitions. [2022-11-16 12:23:19,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 370 flow [2022-11-16 12:23:19,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:23:19,190 INFO L231 Difference]: Finished difference. Result has 177 places, 173 transitions, 358 flow [2022-11-16 12:23:19,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=177, PETRI_TRANSITIONS=173} [2022-11-16 12:23:19,191 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -6 predicate places. [2022-11-16 12:23:19,192 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 173 transitions, 358 flow [2022-11-16 12:23:19,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:19,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:19,193 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:19,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:23:19,193 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:19,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1501407425, now seen corresponding path program 1 times [2022-11-16 12:23:19,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:19,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806838084] [2022-11-16 12:23:19,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:19,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:19,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:19,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806838084] [2022-11-16 12:23:19,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806838084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:19,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:19,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:19,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560117597] [2022-11-16 12:23:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:19,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:19,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:19,763 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 180 [2022-11-16 12:23:19,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 173 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:19,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:19,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 180 [2022-11-16 12:23:19,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:20,136 INFO L130 PetriNetUnfolder]: 211/820 cut-off events. [2022-11-16 12:23:20,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:23:20,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 820 events. 211/820 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3865 event pairs, 135 based on Foata normal form. 0/746 useless extension candidates. Maximal degree in co-relation 1197. Up to 418 conditions per place. [2022-11-16 12:23:20,141 INFO L137 encePairwiseOnDemand]: 169/180 looper letters, 68 selfloop transitions, 22 changer transitions 0/207 dead transitions. [2022-11-16 12:23:20,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 207 transitions, 606 flow [2022-11-16 12:23:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:23:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:23:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 811 transitions. [2022-11-16 12:23:20,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7509259259259259 [2022-11-16 12:23:20,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 811 transitions. [2022-11-16 12:23:20,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 811 transitions. [2022-11-16 12:23:20,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:20,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 811 transitions. [2022-11-16 12:23:20,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.16666666666666) internal successors, (811), 6 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:20,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:20,150 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:20,150 INFO L175 Difference]: Start difference. First operand has 177 places, 173 transitions, 358 flow. Second operand 6 states and 811 transitions. [2022-11-16 12:23:20,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 207 transitions, 606 flow [2022-11-16 12:23:20,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 207 transitions, 606 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:23:20,156 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 508 flow [2022-11-16 12:23:20,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2022-11-16 12:23:20,159 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, 4 predicate places. [2022-11-16 12:23:20,159 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 508 flow [2022-11-16 12:23:20,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.83333333333333) internal successors, (749), 6 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:20,160 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:20,160 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:20,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:23:20,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:20,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1742525625, now seen corresponding path program 1 times [2022-11-16 12:23:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:20,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096810429] [2022-11-16 12:23:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:20,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:20,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:20,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096810429] [2022-11-16 12:23:20,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096810429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:20,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:20,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:20,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442818824] [2022-11-16 12:23:20,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:20,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:20,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:20,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:20,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:20,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 180 [2022-11-16 12:23:20,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:20,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:20,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 180 [2022-11-16 12:23:20,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:21,671 INFO L130 PetriNetUnfolder]: 409/1307 cut-off events. [2022-11-16 12:23:21,671 INFO L131 PetriNetUnfolder]: For 264/274 co-relation queries the response was YES. [2022-11-16 12:23:21,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2657 conditions, 1307 events. 409/1307 cut-off events. For 264/274 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6873 event pairs, 122 based on Foata normal form. 3/1210 useless extension candidates. Maximal degree in co-relation 2530. Up to 690 conditions per place. [2022-11-16 12:23:21,680 INFO L137 encePairwiseOnDemand]: 157/180 looper letters, 102 selfloop transitions, 84 changer transitions 4/306 dead transitions. [2022-11-16 12:23:21,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 306 transitions, 1232 flow [2022-11-16 12:23:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:23:21,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:23:21,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2022-11-16 12:23:21,684 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8083333333333333 [2022-11-16 12:23:21,684 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2022-11-16 12:23:21,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2022-11-16 12:23:21,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:21,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2022-11-16 12:23:21,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:21,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:21,691 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:21,691 INFO L175 Difference]: Start difference. First operand has 187 places, 194 transitions, 508 flow. Second operand 6 states and 873 transitions. [2022-11-16 12:23:21,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 306 transitions, 1232 flow [2022-11-16 12:23:21,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 306 transitions, 1232 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:23:21,704 INFO L231 Difference]: Finished difference. Result has 197 places, 273 transitions, 1154 flow [2022-11-16 12:23:21,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1154, PETRI_PLACES=197, PETRI_TRANSITIONS=273} [2022-11-16 12:23:21,707 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, 14 predicate places. [2022-11-16 12:23:21,707 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 273 transitions, 1154 flow [2022-11-16 12:23:21,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:21,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:21,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:21,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:23:21,708 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:21,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:21,710 INFO L85 PathProgramCache]: Analyzing trace with hash -852845884, now seen corresponding path program 1 times [2022-11-16 12:23:21,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:21,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701260418] [2022-11-16 12:23:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:22,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:22,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701260418] [2022-11-16 12:23:22,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701260418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:22,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:22,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:23:22,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486992019] [2022-11-16 12:23:22,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:22,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:22,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:22,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:22,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:22,309 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 180 [2022-11-16 12:23:22,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 273 transitions, 1154 flow. Second operand has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:22,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:22,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 180 [2022-11-16 12:23:22,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:22,736 INFO L130 PetriNetUnfolder]: 408/1337 cut-off events. [2022-11-16 12:23:22,737 INFO L131 PetriNetUnfolder]: For 932/951 co-relation queries the response was YES. [2022-11-16 12:23:22,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3662 conditions, 1337 events. 408/1337 cut-off events. For 932/951 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7358 event pairs, 97 based on Foata normal form. 0/1283 useless extension candidates. Maximal degree in co-relation 3529. Up to 782 conditions per place. [2022-11-16 12:23:22,748 INFO L137 encePairwiseOnDemand]: 169/180 looper letters, 160 selfloop transitions, 37 changer transitions 0/313 dead transitions. [2022-11-16 12:23:22,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 313 transitions, 1762 flow [2022-11-16 12:23:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:23:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:23:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 800 transitions. [2022-11-16 12:23:22,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2022-11-16 12:23:22,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 800 transitions. [2022-11-16 12:23:22,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 800 transitions. [2022-11-16 12:23:22,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:22,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 800 transitions. [2022-11-16 12:23:22,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:22,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:22,757 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 180.0) internal successors, (1260), 7 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:22,757 INFO L175 Difference]: Start difference. First operand has 197 places, 273 transitions, 1154 flow. Second operand 6 states and 800 transitions. [2022-11-16 12:23:22,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 313 transitions, 1762 flow [2022-11-16 12:23:22,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 313 transitions, 1744 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 12:23:22,785 INFO L231 Difference]: Finished difference. Result has 207 places, 300 transitions, 1478 flow [2022-11-16 12:23:22,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1478, PETRI_PLACES=207, PETRI_TRANSITIONS=300} [2022-11-16 12:23:22,790 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, 24 predicate places. [2022-11-16 12:23:22,790 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 300 transitions, 1478 flow [2022-11-16 12:23:22,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:22,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:22,791 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:22,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:23:22,791 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:22,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:22,792 INFO L85 PathProgramCache]: Analyzing trace with hash 284735950, now seen corresponding path program 1 times [2022-11-16 12:23:22,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:22,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970572127] [2022-11-16 12:23:22,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:22,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:23:22,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:22,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970572127] [2022-11-16 12:23:22,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970572127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:22,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:22,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:23:22,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069614847] [2022-11-16 12:23:22,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:22,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:23:23,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:23,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:23:23,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:23:23,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 180 [2022-11-16 12:23:23,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 300 transitions, 1478 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:23,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:23:23,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 180 [2022-11-16 12:23:23,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:23:23,209 INFO L130 PetriNetUnfolder]: 256/1055 cut-off events. [2022-11-16 12:23:23,210 INFO L131 PetriNetUnfolder]: For 866/884 co-relation queries the response was YES. [2022-11-16 12:23:23,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2633 conditions, 1055 events. 256/1055 cut-off events. For 866/884 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5519 event pairs, 17 based on Foata normal form. 4/1035 useless extension candidates. Maximal degree in co-relation 2511. Up to 257 conditions per place. [2022-11-16 12:23:23,217 INFO L137 encePairwiseOnDemand]: 175/180 looper letters, 11 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2022-11-16 12:23:23,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 303 transitions, 1516 flow [2022-11-16 12:23:23,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:23:23,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:23:23,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2022-11-16 12:23:23,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9611111111111111 [2022-11-16 12:23:23,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2022-11-16 12:23:23,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2022-11-16 12:23:23,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:23:23,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2022-11-16 12:23:23,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:23,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:23,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:23,223 INFO L175 Difference]: Start difference. First operand has 207 places, 300 transitions, 1478 flow. Second operand 3 states and 519 transitions. [2022-11-16 12:23:23,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 303 transitions, 1516 flow [2022-11-16 12:23:23,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 303 transitions, 1460 flow, removed 28 selfloop flow, removed 0 redundant places. [2022-11-16 12:23:23,243 INFO L231 Difference]: Finished difference. Result has 210 places, 302 transitions, 1445 flow [2022-11-16 12:23:23,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=1422, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1445, PETRI_PLACES=210, PETRI_TRANSITIONS=302} [2022-11-16 12:23:23,244 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, 27 predicate places. [2022-11-16 12:23:23,244 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 302 transitions, 1445 flow [2022-11-16 12:23:23,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:23:23,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:23:23,245 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:23,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:23:23,245 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-11-16 12:23:23,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2023621152, now seen corresponding path program 2 times [2022-11-16 12:23:23,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:23,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971166360] [2022-11-16 12:23:23,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:23,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:23:23,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:23:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:23:23,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:23:23,396 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:23:23,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-11-16 12:23:23,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-11-16 12:23:23,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-11-16 12:23:23,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-11-16 12:23:23,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-11-16 12:23:23,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-11-16 12:23:23,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-11-16 12:23:23,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-11-16 12:23:23,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-11-16 12:23:23,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2022-11-16 12:23:23,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-11-16 12:23:23,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2022-11-16 12:23:23,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2022-11-16 12:23:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-11-16 12:23:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-11-16 12:23:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-11-16 12:23:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-11-16 12:23:23,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-11-16 12:23:23,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-11-16 12:23:23,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-11-16 12:23:23,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-11-16 12:23:23,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:23:23,404 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:23,411 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:23:23,411 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:23:23,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:23:23 BasicIcfg [2022-11-16 12:23:23,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:23:23,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:23:23,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:23:23,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:23:23,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:15" (3/4) ... [2022-11-16 12:23:23,521 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:23:23,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:23:23,522 INFO L158 Benchmark]: Toolchain (without parser) took 9889.45ms. Allocated memory was 132.1MB in the beginning and 247.5MB in the end (delta: 115.3MB). Free memory was 86.3MB in the beginning and 139.7MB in the end (delta: -53.3MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2022-11-16 12:23:23,522 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:23:23,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1059.50ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 76.8MB in the end (delta: 9.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:23:23,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.80ms. Allocated memory is still 132.1MB. Free memory was 76.5MB in the beginning and 73.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:23:23,524 INFO L158 Benchmark]: Boogie Preprocessor took 39.02ms. Allocated memory is still 132.1MB. Free memory was 73.6MB in the beginning and 71.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:23:23,524 INFO L158 Benchmark]: RCFGBuilder took 949.60ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 71.3MB in the beginning and 140.5MB in the end (delta: -69.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2022-11-16 12:23:23,527 INFO L158 Benchmark]: TraceAbstraction took 7748.55ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 139.6MB in the beginning and 139.7MB in the end (delta: -78.2kB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-11-16 12:23:23,527 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 247.5MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:23:23,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1059.50ms. Allocated memory is still 132.1MB. Free memory was 86.1MB in the beginning and 76.8MB in the end (delta: 9.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.80ms. Allocated memory is still 132.1MB. Free memory was 76.5MB in the beginning and 73.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.02ms. Allocated memory is still 132.1MB. Free memory was 73.6MB in the beginning and 71.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 949.60ms. Allocated memory was 132.1MB in the beginning and 169.9MB in the end (delta: 37.7MB). Free memory was 71.3MB in the beginning and 140.5MB in the end (delta: -69.2MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7748.55ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 139.6MB in the beginning and 139.7MB in the end (delta: -78.2kB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 247.5MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; VAL [A={0:0}, B={0:0}] [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}] [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}] [L1245] 0 pthread_t t1; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, t1={9:0}] [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, malloc(sizeof(struct s))={-2:0}, p={-2:0}, x=3] [L1229] 0 p->datum = x VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1230] 0 p->next = ((void *)0) VAL [\old(x)=3, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1231] 0 return p; VAL [\old(x)=3, \result={-2:0}, A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-2:0}, x=3] [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) VAL [A={-2:0}, A = new(3)=58, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, new(3)={-2:0}, t1={9:0}] [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, malloc(sizeof(struct s))={-3:0}, p={-3:0}, x=5] [L1229] 0 p->datum = x VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1230] 0 p->next = ((void *)0) VAL [\old(x)=5, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1231] 0 return p; VAL [\old(x)=5, \result={-3:0}, A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, p={-3:0}, x=5] [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B = new(5)=44, B_mutex={2:0}, new(5)={-3:0}, t1={9:0}] [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, t1={9:0}] [L1251] EXPR 0 A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, t1={9:0}] [L1251] 0 data = &A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] EXPR 1 A->datum VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1253] 0 *data = 42 VAL [*data = 42=46, A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=3, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->datum = x [1229] * C: *data = 42 [1253] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: B = new(5) [1247] * C: A = new(3) [1246] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 236 locations, 21 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: 7.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 299 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1092 IncrementalHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 299 mSDtfsCounter, 1092 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1478occurred in iteration=8, InterpolantAutomatonStates: 42, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 900 NumberOfCodeBlocks, 900 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 773 ConstructedInterpolants, 0 QuantifiedInterpolants, 1234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-16 12:23:23,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56997be1-a330-4ac3-88bd-f7c4564c0c16/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE