./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL --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 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:47:56,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:47:56,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:47:56,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:47:56,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:47:56,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:47:56,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:47:56,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:47:56,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:47:56,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:47:56,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:47:56,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:47:56,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:47:56,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:47:56,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:47:56,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:47:56,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:47:56,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:47:56,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:47:56,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:47:56,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:47:56,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:47:56,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:47:56,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:47:56,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:47:56,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:47:56,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:47:56,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:47:56,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:47:56,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:47:56,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:47:56,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:47:56,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:47:56,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:47:56,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:47:56,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:47:56,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:47:56,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:47:56,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:47:56,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:47:56,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:47:56,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-19 04:47:56,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:47:56,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:47:56,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:47:56,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:47:56,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:47:56,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:47:56,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:47:56,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:47:56,228 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:47:56,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:47:56,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:47:56,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:47:56,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:47:56,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:47:56,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:47:56,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:47:56,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:47:56,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:47:56,230 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 04:47:56,230 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:47:56,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:47:56,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:47:56,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:47:56,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:47:56,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:47:56,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:47:56,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:47:56,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:47:56,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:47:56,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:47:56,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:47:56,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:47:56,233 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:47:56,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:47:56,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:47:56,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:47:56,234 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_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d853145e48ada6aa212af657ef21b1dd6bc82cb156511f71c23f87b45f2510e [2021-11-19 04:47:56,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:47:56,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:47:56,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:47:56,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:47:56,560 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:47:56,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2021-11-19 04:47:56,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/data/43b514739/aea7caf09a0d43ab98603e60a3c62ea6/FLAGc63d8a924 [2021-11-19 04:47:57,201 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:47:57,202 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/sv-benchmarks/c/goblint-regression/06-symbeq_04-funloop_hard1.i [2021-11-19 04:47:57,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/data/43b514739/aea7caf09a0d43ab98603e60a3c62ea6/FLAGc63d8a924 [2021-11-19 04:47:57,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/data/43b514739/aea7caf09a0d43ab98603e60a3c62ea6 [2021-11-19 04:47:57,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:47:57,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:47:57,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:47:57,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:47:57,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:47:57,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:57" (1/1) ... [2021-11-19 04:47:57,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70143021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:57, skipping insertion in model container [2021-11-19 04:47:57,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:47:57" (1/1) ... [2021-11-19 04:47:57,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:47:57,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:47:58,099 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:47:58,124 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:47:58,208 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:47:58,295 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:47:58,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58 WrapperNode [2021-11-19 04:47:58,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:47:58,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:47:58,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:47:58,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:47:58,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,391 INFO L137 Inliner]: procedures = 261, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2021-11-19 04:47:58,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:47:58,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:47:58,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:47:58,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:47:58,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:47:58,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:47:58,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:47:58,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:47:58,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (1/1) ... [2021-11-19 04:47:58,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:47:58,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:47:58,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:47:58,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:47:58,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:47:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:47:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:47:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:47:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 04:47:58,548 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 04:47:58,548 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 04:47:58,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:47:58,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:47:58,550 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 04:47:58,758 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:47:58,760 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:47:59,109 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:47:59,119 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:47:59,119 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 04:47:59,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:59 BoogieIcfgContainer [2021-11-19 04:47:59,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:47:59,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:47:59,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:47:59,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:47:59,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:47:57" (1/3) ... [2021-11-19 04:47:59,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e95a645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:59, skipping insertion in model container [2021-11-19 04:47:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:47:58" (2/3) ... [2021-11-19 04:47:59,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e95a645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:47:59, skipping insertion in model container [2021-11-19 04:47:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:47:59" (3/3) ... [2021-11-19 04:47:59,146 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_04-funloop_hard1.i [2021-11-19 04:47:59,151 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 04:47:59,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:47:59,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-19 04:47:59,152 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 04:47:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,183 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,184 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,185 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,186 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,187 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,188 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,189 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,190 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,191 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,192 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,193 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,194 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,195 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,196 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,197 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,198 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,199 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,200 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,201 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,202 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,203 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,204 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,205 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,206 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,207 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,208 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,209 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,210 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:47:59,218 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 04:47:59,269 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:47:59,277 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:47:59,277 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-19 04:47:59,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 127 transitions, 259 flow [2021-11-19 04:47:59,346 INFO L129 PetriNetUnfolder]: 6/126 cut-off events. [2021-11-19 04:47:59,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:47:59,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 126 events. 6/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 232 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2021-11-19 04:47:59,362 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 127 transitions, 259 flow [2021-11-19 04:47:59,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 126 transitions, 255 flow [2021-11-19 04:47:59,397 INFO L129 PetriNetUnfolder]: 4/62 cut-off events. [2021-11-19 04:47:59,397 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:47:59,397 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:59,398 INFO L254 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] [2021-11-19 04:47:59,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:47:59,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1622619563, now seen corresponding path program 1 times [2021-11-19 04:47:59,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:59,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363137338] [2021-11-19 04:47:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:59,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:59,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:59,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363137338] [2021-11-19 04:47:59,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363137338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:59,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:59,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:47:59,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924793493] [2021-11-19 04:47:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:59,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:47:59,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:59,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:47:59,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:47:59,641 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 127 [2021-11-19 04:47:59,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 126 transitions, 255 flow. Second operand has 2 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 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) [2021-11-19 04:47:59,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:59,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 127 [2021-11-19 04:47:59,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:59,709 INFO L129 PetriNetUnfolder]: 3/123 cut-off events. [2021-11-19 04:47:59,709 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:47:59,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 123 events. 3/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 230 event pairs, 0 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2021-11-19 04:47:59,713 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 1 selfloop transitions, 0 changer transitions 0/123 dead transitions. [2021-11-19 04:47:59,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 123 transitions, 251 flow [2021-11-19 04:47:59,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:47:59,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-19 04:47:59,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 250 transitions. [2021-11-19 04:47:59,727 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.984251968503937 [2021-11-19 04:47:59,728 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 250 transitions. [2021-11-19 04:47:59,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 250 transitions. [2021-11-19 04:47:59,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:59,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 250 transitions. [2021-11-19 04:47:59,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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) [2021-11-19 04:47:59,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2021-11-19 04:47:59,743 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2021-11-19 04:47:59,745 INFO L186 Difference]: Start difference. First operand has 124 places, 126 transitions, 255 flow. Second operand 2 states and 250 transitions. [2021-11-19 04:47:59,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 123 transitions, 251 flow [2021-11-19 04:47:59,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 123 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:47:59,755 INFO L242 Difference]: Finished difference. Result has 124 places, 123 transitions, 248 flow [2021-11-19 04:47:59,757 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=248, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2021-11-19 04:47:59,761 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 0 predicate places. [2021-11-19 04:47:59,761 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 248 flow [2021-11-19 04:47:59,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 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) [2021-11-19 04:47:59,762 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:59,762 INFO L254 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] [2021-11-19 04:47:59,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:47:59,763 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:47:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1827875862, now seen corresponding path program 1 times [2021-11-19 04:47:59,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:59,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735703024] [2021-11-19 04:47:59,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:59,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:47:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:47:59,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:47:59,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735703024] [2021-11-19 04:47:59,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735703024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:47:59,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:47:59,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:47:59,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895528723] [2021-11-19 04:47:59,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:47:59,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:47:59,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:47:59,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:47:59,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:47:59,868 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 127 [2021-11-19 04:47:59,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2021-11-19 04:47:59,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:47:59,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 127 [2021-11-19 04:47:59,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:47:59,910 INFO L129 PetriNetUnfolder]: 3/127 cut-off events. [2021-11-19 04:47:59,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:47:59,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 127 events. 3/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 141. Up to 9 conditions per place. [2021-11-19 04:47:59,913 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 10 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2021-11-19 04:47:59,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 127 transitions, 280 flow [2021-11-19 04:47:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:47:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:47:59,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-11-19 04:47:59,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.94750656167979 [2021-11-19 04:47:59,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-11-19 04:47:59,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-11-19 04:47:59,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:47:59,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-11-19 04:47:59,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2021-11-19 04:47:59,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2021-11-19 04:47:59,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2021-11-19 04:47:59,925 INFO L186 Difference]: Start difference. First operand has 124 places, 123 transitions, 248 flow. Second operand 3 states and 361 transitions. [2021-11-19 04:47:59,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 127 transitions, 280 flow [2021-11-19 04:47:59,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 127 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 04:47:59,930 INFO L242 Difference]: Finished difference. Result has 127 places, 124 transitions, 260 flow [2021-11-19 04:47:59,931 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2021-11-19 04:47:59,932 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 3 predicate places. [2021-11-19 04:47:59,932 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 260 flow [2021-11-19 04:47:59,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2021-11-19 04:47:59,933 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:47:59,933 INFO L254 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] [2021-11-19 04:47:59,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:47:59,933 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:47:59,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:47:59,934 INFO L85 PathProgramCache]: Analyzing trace with hash 417665233, now seen corresponding path program 1 times [2021-11-19 04:47:59,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:47:59,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408941209] [2021-11-19 04:47:59,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:47:59,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:47:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:00,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:00,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:00,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408941209] [2021-11-19 04:48:00,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408941209] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:00,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786527440] [2021-11-19 04:48:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:00,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:00,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:00,010 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:00,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:48:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:00,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:48:00,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:48:00,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:00,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786527440] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:00,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:00,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-19 04:48:00,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970217772] [2021-11-19 04:48:00,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:00,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:48:00,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:00,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:48:00,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:48:00,229 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 127 [2021-11-19 04:48:00,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2021-11-19 04:48:00,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:00,231 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 127 [2021-11-19 04:48:00,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:00,313 INFO L129 PetriNetUnfolder]: 3/157 cut-off events. [2021-11-19 04:48:00,313 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:48:00,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 157 events. 3/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 162 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 177. Up to 10 conditions per place. [2021-11-19 04:48:00,317 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 11 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2021-11-19 04:48:00,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 294 flow [2021-11-19 04:48:00,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:48:00,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:48:00,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2021-11-19 04:48:00,320 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9422572178477691 [2021-11-19 04:48:00,321 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2021-11-19 04:48:00,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2021-11-19 04:48:00,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:00,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2021-11-19 04:48:00,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-11-19 04:48:00,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2021-11-19 04:48:00,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2021-11-19 04:48:00,327 INFO L186 Difference]: Start difference. First operand has 127 places, 124 transitions, 260 flow. Second operand 3 states and 359 transitions. [2021-11-19 04:48:00,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 128 transitions, 294 flow [2021-11-19 04:48:00,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 128 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:48:00,336 INFO L242 Difference]: Finished difference. Result has 129 places, 125 transitions, 270 flow [2021-11-19 04:48:00,337 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2021-11-19 04:48:00,341 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 5 predicate places. [2021-11-19 04:48:00,342 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 270 flow [2021-11-19 04:48:00,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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) [2021-11-19 04:48:00,342 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:00,343 INFO L254 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] [2021-11-19 04:48:00,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:00,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-19 04:48:00,563 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:00,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:00,564 INFO L85 PathProgramCache]: Analyzing trace with hash -834008015, now seen corresponding path program 1 times [2021-11-19 04:48:00,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:00,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667986059] [2021-11-19 04:48:00,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:00,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:00,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:00,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667986059] [2021-11-19 04:48:00,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667986059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:00,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881270911] [2021-11-19 04:48:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:00,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:00,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:00,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:00,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:48:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:00,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:48:00,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:00,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:00,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:48:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:01,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881270911] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:48:01,062 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:48:01,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-19 04:48:01,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245814181] [2021-11-19 04:48:01,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:48:01,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:48:01,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:01,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:48:01,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:48:01,071 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 127 [2021-11-19 04:48:01,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 270 flow. Second operand has 10 states, 10 states have (on average 117.1) internal successors, (1171), 10 states have internal predecessors, (1171), 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) [2021-11-19 04:48:01,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:01,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 127 [2021-11-19 04:48:01,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:01,213 INFO L129 PetriNetUnfolder]: 3/164 cut-off events. [2021-11-19 04:48:01,213 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:48:01,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 164 events. 3/164 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 157 event pairs, 0 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 196. Up to 6 conditions per place. [2021-11-19 04:48:01,216 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 11 selfloop transitions, 9 changer transitions 0/135 dead transitions. [2021-11-19 04:48:01,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 135 transitions, 332 flow [2021-11-19 04:48:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 04:48:01,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-19 04:48:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1057 transitions. [2021-11-19 04:48:01,233 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9247594050743657 [2021-11-19 04:48:01,234 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1057 transitions. [2021-11-19 04:48:01,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1057 transitions. [2021-11-19 04:48:01,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:01,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1057 transitions. [2021-11-19 04:48:01,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.44444444444444) internal successors, (1057), 9 states have internal predecessors, (1057), 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) [2021-11-19 04:48:01,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 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) [2021-11-19 04:48:01,245 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 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) [2021-11-19 04:48:01,245 INFO L186 Difference]: Start difference. First operand has 129 places, 125 transitions, 270 flow. Second operand 9 states and 1057 transitions. [2021-11-19 04:48:01,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 135 transitions, 332 flow [2021-11-19 04:48:01,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:48:01,254 INFO L242 Difference]: Finished difference. Result has 139 places, 131 transitions, 318 flow [2021-11-19 04:48:01,254 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=318, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2021-11-19 04:48:01,256 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 15 predicate places. [2021-11-19 04:48:01,256 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 318 flow [2021-11-19 04:48:01,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 117.1) internal successors, (1171), 10 states have internal predecessors, (1171), 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) [2021-11-19 04:48:01,258 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:01,258 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:01,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:01,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:01,471 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:01,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:01,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1542966097, now seen corresponding path program 2 times [2021-11-19 04:48:01,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:01,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341386176] [2021-11-19 04:48:01,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:01,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:01,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:01,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341386176] [2021-11-19 04:48:01,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341386176] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:01,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243205091] [2021-11-19 04:48:01,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:48:01,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:01,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:01,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:01,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 04:48:01,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 04:48:01,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:48:01,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:48:01,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:01,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 04:48:01,835 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-19 04:48:01,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 04:48:01,912 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-19 04:48:01,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 04:48:02,006 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-19 04:48:02,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-19 04:48:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 04:48:02,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:02,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243205091] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:02,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:02,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-19 04:48:02,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184542308] [2021-11-19 04:48:02,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:02,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:48:02,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:02,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:48:02,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:48:02,042 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 127 [2021-11-19 04:48:02,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-11-19 04:48:02,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:02,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 127 [2021-11-19 04:48:02,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:02,886 INFO L129 PetriNetUnfolder]: 779/2779 cut-off events. [2021-11-19 04:48:02,886 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-19 04:48:02,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4393 conditions, 2779 events. 779/2779 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 20022 event pairs, 424 based on Foata normal form. 0/2512 useless extension candidates. Maximal degree in co-relation 4385. Up to 1258 conditions per place. [2021-11-19 04:48:02,914 INFO L132 encePairwiseOnDemand]: 116/127 looper letters, 75 selfloop transitions, 22 changer transitions 0/185 dead transitions. [2021-11-19 04:48:02,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 185 transitions, 620 flow [2021-11-19 04:48:02,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:48:02,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 04:48:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2021-11-19 04:48:02,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7664041994750657 [2021-11-19 04:48:02,920 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2021-11-19 04:48:02,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2021-11-19 04:48:02,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:02,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2021-11-19 04:48:02,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 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) [2021-11-19 04:48:02,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:02,928 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:02,928 INFO L186 Difference]: Start difference. First operand has 139 places, 131 transitions, 318 flow. Second operand 6 states and 584 transitions. [2021-11-19 04:48:02,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 185 transitions, 620 flow [2021-11-19 04:48:02,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 185 transitions, 614 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-19 04:48:02,939 INFO L242 Difference]: Finished difference. Result has 148 places, 152 transitions, 462 flow [2021-11-19 04:48:02,940 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=462, PETRI_PLACES=148, PETRI_TRANSITIONS=152} [2021-11-19 04:48:02,942 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 24 predicate places. [2021-11-19 04:48:02,942 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 152 transitions, 462 flow [2021-11-19 04:48:02,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-11-19 04:48:02,943 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:02,944 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:02,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:03,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:03,167 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:03,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:03,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1856096552, now seen corresponding path program 1 times [2021-11-19 04:48:03,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:03,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877403677] [2021-11-19 04:48:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:03,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:03,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:03,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877403677] [2021-11-19 04:48:03,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877403677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:03,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687923816] [2021-11-19 04:48:03,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:03,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:03,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:03,267 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:03,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 04:48:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:03,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:48:03,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:03,514 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:03,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:48:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:03,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687923816] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:48:03,678 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:48:03,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-19 04:48:03,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934697738] [2021-11-19 04:48:03,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:48:03,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 04:48:03,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 04:48:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:48:03,687 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 127 [2021-11-19 04:48:03,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 152 transitions, 462 flow. Second operand has 18 states, 18 states have (on average 117.27777777777777) internal successors, (2111), 18 states have internal predecessors, (2111), 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) [2021-11-19 04:48:03,692 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:03,692 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 127 [2021-11-19 04:48:03,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:04,029 INFO L129 PetriNetUnfolder]: 75/789 cut-off events. [2021-11-19 04:48:04,029 INFO L130 PetriNetUnfolder]: For 80/90 co-relation queries the response was YES. [2021-11-19 04:48:04,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1177 conditions, 789 events. 75/789 cut-off events. For 80/90 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4039 event pairs, 8 based on Foata normal form. 4/741 useless extension candidates. Maximal degree in co-relation 1164. Up to 110 conditions per place. [2021-11-19 04:48:04,038 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 19 selfloop transitions, 21 changer transitions 0/176 dead transitions. [2021-11-19 04:48:04,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 176 transitions, 642 flow [2021-11-19 04:48:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-19 04:48:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-19 04:48:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2459 transitions. [2021-11-19 04:48:04,048 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9220097487814023 [2021-11-19 04:48:04,049 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2459 transitions. [2021-11-19 04:48:04,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2459 transitions. [2021-11-19 04:48:04,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:04,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2459 transitions. [2021-11-19 04:48:04,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 117.0952380952381) internal successors, (2459), 21 states have internal predecessors, (2459), 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) [2021-11-19 04:48:04,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 127.0) internal successors, (2794), 22 states have internal predecessors, (2794), 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) [2021-11-19 04:48:04,069 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 127.0) internal successors, (2794), 22 states have internal predecessors, (2794), 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) [2021-11-19 04:48:04,069 INFO L186 Difference]: Start difference. First operand has 148 places, 152 transitions, 462 flow. Second operand 21 states and 2459 transitions. [2021-11-19 04:48:04,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 176 transitions, 642 flow [2021-11-19 04:48:04,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 176 transitions, 642 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 04:48:04,083 INFO L242 Difference]: Finished difference. Result has 173 places, 165 transitions, 592 flow [2021-11-19 04:48:04,084 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=592, PETRI_PLACES=173, PETRI_TRANSITIONS=165} [2021-11-19 04:48:04,087 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 49 predicate places. [2021-11-19 04:48:04,087 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 165 transitions, 592 flow [2021-11-19 04:48:04,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 117.27777777777777) internal successors, (2111), 18 states have internal predecessors, (2111), 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) [2021-11-19 04:48:04,089 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:04,089 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:04,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:04,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-19 04:48:04,311 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1875477224, now seen corresponding path program 2 times [2021-11-19 04:48:04,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:04,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344179161] [2021-11-19 04:48:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:04,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:04,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:04,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344179161] [2021-11-19 04:48:04,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344179161] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:04,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547620572] [2021-11-19 04:48:04,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:48:04,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:04,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:04,562 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:04,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 04:48:04,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 04:48:04,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:48:04,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:48:04,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:04,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 04:48:04,764 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-19 04:48:04,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-19 04:48:04,814 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-19 04:48:04,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-19 04:48:04,876 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-19 04:48:04,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-19 04:48:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-19 04:48:04,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:04,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547620572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:04,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:04,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-11-19 04:48:04,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044809171] [2021-11-19 04:48:04,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:04,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:48:04,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:48:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-19 04:48:04,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 127 [2021-11-19 04:48:04,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 165 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-11-19 04:48:04,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:04,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 127 [2021-11-19 04:48:04,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:05,827 INFO L129 PetriNetUnfolder]: 1029/3388 cut-off events. [2021-11-19 04:48:05,827 INFO L130 PetriNetUnfolder]: For 889/905 co-relation queries the response was YES. [2021-11-19 04:48:05,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6559 conditions, 3388 events. 1029/3388 cut-off events. For 889/905 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 24865 event pairs, 375 based on Foata normal form. 0/3143 useless extension candidates. Maximal degree in co-relation 6541. Up to 1547 conditions per place. [2021-11-19 04:48:05,870 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 144 selfloop transitions, 46 changer transitions 0/291 dead transitions. [2021-11-19 04:48:05,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 291 transitions, 1386 flow [2021-11-19 04:48:05,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:48:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 04:48:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2021-11-19 04:48:05,873 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8293963254593176 [2021-11-19 04:48:05,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 632 transitions. [2021-11-19 04:48:05,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 632 transitions. [2021-11-19 04:48:05,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:05,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 632 transitions. [2021-11-19 04:48:05,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:05,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:05,879 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:05,880 INFO L186 Difference]: Start difference. First operand has 173 places, 165 transitions, 592 flow. Second operand 6 states and 632 transitions. [2021-11-19 04:48:05,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 291 transitions, 1386 flow [2021-11-19 04:48:05,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 291 transitions, 1362 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-19 04:48:05,894 INFO L242 Difference]: Finished difference. Result has 177 places, 210 transitions, 922 flow [2021-11-19 04:48:05,895 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=177, PETRI_TRANSITIONS=210} [2021-11-19 04:48:05,896 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 53 predicate places. [2021-11-19 04:48:05,896 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 210 transitions, 922 flow [2021-11-19 04:48:05,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.66666666666667) internal successors, (496), 6 states have internal predecessors, (496), 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) [2021-11-19 04:48:05,897 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:05,898 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:05,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:06,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:06,123 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:06,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:06,124 INFO L85 PathProgramCache]: Analyzing trace with hash -644593279, now seen corresponding path program 1 times [2021-11-19 04:48:06,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:06,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228945563] [2021-11-19 04:48:06,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:06,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:06,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:06,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228945563] [2021-11-19 04:48:06,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228945563] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:06,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270082786] [2021-11-19 04:48:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:06,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:06,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:06,340 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:06,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 04:48:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:06,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 04:48:06,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:06,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:48:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:06,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270082786] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:48:06,866 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:48:06,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-11-19 04:48:06,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44180705] [2021-11-19 04:48:06,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:48:06,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-19 04:48:06,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:06,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-19 04:48:06,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-11-19 04:48:06,872 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 127 [2021-11-19 04:48:06,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 210 transitions, 922 flow. Second operand has 23 states, 23 states have (on average 117.43478260869566) internal successors, (2701), 23 states have internal predecessors, (2701), 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) [2021-11-19 04:48:06,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:06,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 127 [2021-11-19 04:48:06,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:07,468 INFO L129 PetriNetUnfolder]: 203/1407 cut-off events. [2021-11-19 04:48:07,469 INFO L130 PetriNetUnfolder]: For 567/597 co-relation queries the response was YES. [2021-11-19 04:48:07,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 1407 events. 203/1407 cut-off events. For 567/597 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 9576 event pairs, 17 based on Foata normal form. 7/1335 useless extension candidates. Maximal degree in co-relation 2572. Up to 192 conditions per place. [2021-11-19 04:48:07,487 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 25 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2021-11-19 04:48:07,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 236 transitions, 1172 flow [2021-11-19 04:48:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-19 04:48:07,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-19 04:48:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3508 transitions. [2021-11-19 04:48:07,498 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.920734908136483 [2021-11-19 04:48:07,499 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3508 transitions. [2021-11-19 04:48:07,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3508 transitions. [2021-11-19 04:48:07,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:07,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3508 transitions. [2021-11-19 04:48:07,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 116.93333333333334) internal successors, (3508), 30 states have internal predecessors, (3508), 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) [2021-11-19 04:48:07,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 127.0) internal successors, (3937), 31 states have internal predecessors, (3937), 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) [2021-11-19 04:48:07,522 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 127.0) internal successors, (3937), 31 states have internal predecessors, (3937), 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) [2021-11-19 04:48:07,523 INFO L186 Difference]: Start difference. First operand has 177 places, 210 transitions, 922 flow. Second operand 30 states and 3508 transitions. [2021-11-19 04:48:07,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 236 transitions, 1172 flow [2021-11-19 04:48:07,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 236 transitions, 1172 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 04:48:07,535 INFO L242 Difference]: Finished difference. Result has 210 places, 220 transitions, 1074 flow [2021-11-19 04:48:07,536 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1074, PETRI_PLACES=210, PETRI_TRANSITIONS=220} [2021-11-19 04:48:07,536 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 86 predicate places. [2021-11-19 04:48:07,537 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 220 transitions, 1074 flow [2021-11-19 04:48:07,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 117.43478260869566) internal successors, (2701), 23 states have internal predecessors, (2701), 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) [2021-11-19 04:48:07,538 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:07,538 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:07,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:07,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:07,763 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:07,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:07,763 INFO L85 PathProgramCache]: Analyzing trace with hash 688926790, now seen corresponding path program 2 times [2021-11-19 04:48:07,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:07,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084747314] [2021-11-19 04:48:07,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:07,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:07,928 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:48:07,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:07,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084747314] [2021-11-19 04:48:07,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084747314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:07,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:48:07,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:48:07,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948638383] [2021-11-19 04:48:07,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:07,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:48:07,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:07,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:48:07,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:48:07,931 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 127 [2021-11-19 04:48:07,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 220 transitions, 1074 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:07,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:07,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 127 [2021-11-19 04:48:07,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:08,964 INFO L129 PetriNetUnfolder]: 1152/3816 cut-off events. [2021-11-19 04:48:08,964 INFO L130 PetriNetUnfolder]: For 2318/2373 co-relation queries the response was YES. [2021-11-19 04:48:08,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8833 conditions, 3816 events. 1152/3816 cut-off events. For 2318/2373 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 28640 event pairs, 414 based on Foata normal form. 6/3595 useless extension candidates. Maximal degree in co-relation 8806. Up to 2043 conditions per place. [2021-11-19 04:48:09,018 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 118 selfloop transitions, 57 changer transitions 0/284 dead transitions. [2021-11-19 04:48:09,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 284 transitions, 1712 flow [2021-11-19 04:48:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:48:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 04:48:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2021-11-19 04:48:09,022 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7519685039370079 [2021-11-19 04:48:09,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2021-11-19 04:48:09,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2021-11-19 04:48:09,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:09,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2021-11-19 04:48:09,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 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) [2021-11-19 04:48:09,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:09,028 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:09,028 INFO L186 Difference]: Start difference. First operand has 210 places, 220 transitions, 1074 flow. Second operand 6 states and 573 transitions. [2021-11-19 04:48:09,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 284 transitions, 1712 flow [2021-11-19 04:48:09,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 284 transitions, 1666 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-11-19 04:48:09,052 INFO L242 Difference]: Finished difference. Result has 202 places, 267 transitions, 1526 flow [2021-11-19 04:48:09,053 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1526, PETRI_PLACES=202, PETRI_TRANSITIONS=267} [2021-11-19 04:48:09,053 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 78 predicate places. [2021-11-19 04:48:09,054 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 267 transitions, 1526 flow [2021-11-19 04:48:09,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:09,054 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:09,055 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:09,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-19 04:48:09,055 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:09,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1410864414, now seen corresponding path program 1 times [2021-11-19 04:48:09,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:09,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603974921] [2021-11-19 04:48:09,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:09,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:48:09,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:09,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603974921] [2021-11-19 04:48:09,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603974921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:09,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:48:09,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:48:09,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234308929] [2021-11-19 04:48:09,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:09,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:48:09,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:09,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:48:09,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:48:09,164 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 127 [2021-11-19 04:48:09,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 267 transitions, 1526 flow. Second operand has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:09,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:09,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 127 [2021-11-19 04:48:09,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:10,752 INFO L129 PetriNetUnfolder]: 1579/4896 cut-off events. [2021-11-19 04:48:10,753 INFO L130 PetriNetUnfolder]: For 4942/5014 co-relation queries the response was YES. [2021-11-19 04:48:10,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12942 conditions, 4896 events. 1579/4896 cut-off events. For 4942/5014 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 38352 event pairs, 461 based on Foata normal form. 4/4684 useless extension candidates. Maximal degree in co-relation 12910. Up to 2738 conditions per place. [2021-11-19 04:48:10,833 INFO L132 encePairwiseOnDemand]: 104/127 looper letters, 169 selfloop transitions, 103 changer transitions 4/386 dead transitions. [2021-11-19 04:48:10,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 386 transitions, 2632 flow [2021-11-19 04:48:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:48:10,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-19 04:48:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 621 transitions. [2021-11-19 04:48:10,836 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8149606299212598 [2021-11-19 04:48:10,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 621 transitions. [2021-11-19 04:48:10,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 621 transitions. [2021-11-19 04:48:10,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:10,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 621 transitions. [2021-11-19 04:48:10,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 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) [2021-11-19 04:48:10,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:10,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2021-11-19 04:48:10,844 INFO L186 Difference]: Start difference. First operand has 202 places, 267 transitions, 1526 flow. Second operand 6 states and 621 transitions. [2021-11-19 04:48:10,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 386 transitions, 2632 flow [2021-11-19 04:48:10,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 386 transitions, 2568 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-11-19 04:48:10,885 INFO L242 Difference]: Finished difference. Result has 212 places, 352 transitions, 2378 flow [2021-11-19 04:48:10,886 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=1468, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2378, PETRI_PLACES=212, PETRI_TRANSITIONS=352} [2021-11-19 04:48:10,887 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 88 predicate places. [2021-11-19 04:48:10,888 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 352 transitions, 2378 flow [2021-11-19 04:48:10,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.83333333333333) internal successors, (491), 6 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:10,888 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:10,889 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:10,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-19 04:48:10,889 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:10,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:10,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1002721502, now seen corresponding path program 1 times [2021-11-19 04:48:10,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:10,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840805457] [2021-11-19 04:48:10,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:10,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-19 04:48:11,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:11,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840805457] [2021-11-19 04:48:11,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840805457] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:11,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467515047] [2021-11-19 04:48:11,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:11,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:11,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:11,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:11,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 04:48:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:11,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 04:48:11,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:11,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 04:48:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:48:11,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:11,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467515047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:11,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:11,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 13 [2021-11-19 04:48:11,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364762065] [2021-11-19 04:48:11,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:11,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:48:11,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:11,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:48:11,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:48:11,928 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 127 [2021-11-19 04:48:11,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 352 transitions, 2378 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 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) [2021-11-19 04:48:11,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:11,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 127 [2021-11-19 04:48:11,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:17,098 INFO L129 PetriNetUnfolder]: 6569/17038 cut-off events. [2021-11-19 04:48:17,099 INFO L130 PetriNetUnfolder]: For 26363/26365 co-relation queries the response was YES. [2021-11-19 04:48:17,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51491 conditions, 17038 events. 6569/17038 cut-off events. For 26363/26365 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 149283 event pairs, 1620 based on Foata normal form. 13/16541 useless extension candidates. Maximal degree in co-relation 51454. Up to 5282 conditions per place. [2021-11-19 04:48:17,511 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 1065 selfloop transitions, 36 changer transitions 6/1191 dead transitions. [2021-11-19 04:48:17,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 1191 transitions, 10162 flow [2021-11-19 04:48:17,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 04:48:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-11-19 04:48:17,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1482 transitions. [2021-11-19 04:48:17,520 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6141732283464567 [2021-11-19 04:48:17,521 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1482 transitions. [2021-11-19 04:48:17,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1482 transitions. [2021-11-19 04:48:17,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:17,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1482 transitions. [2021-11-19 04:48:17,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 78.0) internal successors, (1482), 19 states have internal predecessors, (1482), 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) [2021-11-19 04:48:17,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 127.0) internal successors, (2540), 20 states have internal predecessors, (2540), 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) [2021-11-19 04:48:17,538 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 127.0) internal successors, (2540), 20 states have internal predecessors, (2540), 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) [2021-11-19 04:48:17,538 INFO L186 Difference]: Start difference. First operand has 212 places, 352 transitions, 2378 flow. Second operand 19 states and 1482 transitions. [2021-11-19 04:48:17,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 1191 transitions, 10162 flow [2021-11-19 04:48:17,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 1191 transitions, 9820 flow, removed 171 selfloop flow, removed 0 redundant places. [2021-11-19 04:48:17,750 INFO L242 Difference]: Finished difference. Result has 246 places, 386 transitions, 2520 flow [2021-11-19 04:48:17,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2520, PETRI_PLACES=246, PETRI_TRANSITIONS=386} [2021-11-19 04:48:17,751 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 122 predicate places. [2021-11-19 04:48:17,752 INFO L470 AbstractCegarLoop]: Abstraction has has 246 places, 386 transitions, 2520 flow [2021-11-19 04:48:17,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 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) [2021-11-19 04:48:17,752 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:17,753 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:17,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:17,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:17,979 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:17,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:17,980 INFO L85 PathProgramCache]: Analyzing trace with hash 933429660, now seen corresponding path program 2 times [2021-11-19 04:48:17,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:17,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831600889] [2021-11-19 04:48:17,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:17,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-19 04:48:18,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:18,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831600889] [2021-11-19 04:48:18,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831600889] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:18,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318113558] [2021-11-19 04:48:18,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:48:18,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:18,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:18,331 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:18,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 04:48:18,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 04:48:18,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:48:18,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 04:48:18,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:18,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 04:48:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:48:18,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:18,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318113558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:18,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:18,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2021-11-19 04:48:18,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872620915] [2021-11-19 04:48:18,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:18,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 04:48:18,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:18,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 04:48:18,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:48:18,759 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 127 [2021-11-19 04:48:18,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 386 transitions, 2520 flow. Second operand has 9 states, 9 states have (on average 56.666666666666664) internal successors, (510), 9 states have internal predecessors, (510), 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) [2021-11-19 04:48:18,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:18,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 127 [2021-11-19 04:48:18,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:27,123 INFO L129 PetriNetUnfolder]: 11667/29889 cut-off events. [2021-11-19 04:48:27,123 INFO L130 PetriNetUnfolder]: For 53246/53282 co-relation queries the response was YES. [2021-11-19 04:48:27,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97293 conditions, 29889 events. 11667/29889 cut-off events. For 53246/53282 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 281168 event pairs, 1670 based on Foata normal form. 21/29217 useless extension candidates. Maximal degree in co-relation 97239. Up to 6572 conditions per place. [2021-11-19 04:48:27,759 INFO L132 encePairwiseOnDemand]: 114/127 looper letters, 1273 selfloop transitions, 66 changer transitions 0/1423 dead transitions. [2021-11-19 04:48:27,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 1423 transitions, 12454 flow [2021-11-19 04:48:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-19 04:48:27,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-19 04:48:27,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1425 transitions. [2021-11-19 04:48:27,764 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6233595800524935 [2021-11-19 04:48:27,764 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1425 transitions. [2021-11-19 04:48:27,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1425 transitions. [2021-11-19 04:48:27,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:27,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1425 transitions. [2021-11-19 04:48:27,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 79.16666666666667) internal successors, (1425), 18 states have internal predecessors, (1425), 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) [2021-11-19 04:48:27,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 127.0) internal successors, (2413), 19 states have internal predecessors, (2413), 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) [2021-11-19 04:48:27,795 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 127.0) internal successors, (2413), 19 states have internal predecessors, (2413), 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) [2021-11-19 04:48:27,795 INFO L186 Difference]: Start difference. First operand has 246 places, 386 transitions, 2520 flow. Second operand 18 states and 1425 transitions. [2021-11-19 04:48:27,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 1423 transitions, 12454 flow [2021-11-19 04:48:28,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 1423 transitions, 12453 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:48:28,164 INFO L242 Difference]: Finished difference. Result has 273 places, 436 transitions, 3080 flow [2021-11-19 04:48:28,165 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=2519, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3080, PETRI_PLACES=273, PETRI_TRANSITIONS=436} [2021-11-19 04:48:28,167 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 149 predicate places. [2021-11-19 04:48:28,167 INFO L470 AbstractCegarLoop]: Abstraction has has 273 places, 436 transitions, 3080 flow [2021-11-19 04:48:28,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 56.666666666666664) internal successors, (510), 9 states have internal predecessors, (510), 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) [2021-11-19 04:48:28,167 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:28,168 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:28,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:28,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-19 04:48:28,383 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:28,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1176726677, now seen corresponding path program 1 times [2021-11-19 04:48:28,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:28,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189101519] [2021-11-19 04:48:28,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:28,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-19 04:48:28,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:28,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189101519] [2021-11-19 04:48:28,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189101519] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:28,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014424156] [2021-11-19 04:48:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:28,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:28,761 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:28,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 04:48:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:28,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-19 04:48:28,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:29,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-19 04:48:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:48:29,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:29,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014424156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:29,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:29,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 12 [2021-11-19 04:48:29,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264397731] [2021-11-19 04:48:29,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:29,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 04:48:29,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:29,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 04:48:29,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:48:29,382 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 127 [2021-11-19 04:48:29,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 436 transitions, 3080 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 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) [2021-11-19 04:48:29,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:29,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 127 [2021-11-19 04:48:29,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:40,792 INFO L129 PetriNetUnfolder]: 14215/36431 cut-off events. [2021-11-19 04:48:40,792 INFO L130 PetriNetUnfolder]: For 80690/80749 co-relation queries the response was YES. [2021-11-19 04:48:41,313 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124552 conditions, 36431 events. 14215/36431 cut-off events. For 80690/80749 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 359037 event pairs, 4764 based on Foata normal form. 35/35622 useless extension candidates. Maximal degree in co-relation 124487. Up to 11511 conditions per place. [2021-11-19 04:48:41,501 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 1578 selfloop transitions, 84 changer transitions 6/1752 dead transitions. [2021-11-19 04:48:41,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1752 transitions, 16128 flow [2021-11-19 04:48:41,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-19 04:48:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-11-19 04:48:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2015 transitions. [2021-11-19 04:48:41,510 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5876348789734617 [2021-11-19 04:48:41,510 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2015 transitions. [2021-11-19 04:48:41,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2015 transitions. [2021-11-19 04:48:41,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:41,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2015 transitions. [2021-11-19 04:48:41,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 74.62962962962963) internal successors, (2015), 27 states have internal predecessors, (2015), 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) [2021-11-19 04:48:41,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 127.0) internal successors, (3556), 28 states have internal predecessors, (3556), 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) [2021-11-19 04:48:41,529 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 127.0) internal successors, (3556), 28 states have internal predecessors, (3556), 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) [2021-11-19 04:48:41,529 INFO L186 Difference]: Start difference. First operand has 273 places, 436 transitions, 3080 flow. Second operand 27 states and 2015 transitions. [2021-11-19 04:48:41,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1752 transitions, 16128 flow [2021-11-19 04:48:42,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 1752 transitions, 15773 flow, removed 166 selfloop flow, removed 1 redundant places. [2021-11-19 04:48:42,199 INFO L242 Difference]: Finished difference. Result has 322 places, 512 transitions, 3915 flow [2021-11-19 04:48:42,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=2956, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=3915, PETRI_PLACES=322, PETRI_TRANSITIONS=512} [2021-11-19 04:48:42,200 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 198 predicate places. [2021-11-19 04:48:42,200 INFO L470 AbstractCegarLoop]: Abstraction has has 322 places, 512 transitions, 3915 flow [2021-11-19 04:48:42,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 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) [2021-11-19 04:48:42,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:42,201 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:42,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:42,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:42,402 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash -747843002, now seen corresponding path program 1 times [2021-11-19 04:48:42,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:42,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558045388] [2021-11-19 04:48:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:42,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-19 04:48:42,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:42,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558045388] [2021-11-19 04:48:42,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558045388] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:42,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53272580] [2021-11-19 04:48:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:42,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:42,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:42,728 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:42,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 04:48:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:42,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 04:48:42,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:43,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 04:48:43,169 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:48:43,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:48:43,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53272580] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:48:43,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:48:43,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2021-11-19 04:48:43,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205337421] [2021-11-19 04:48:43,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:48:43,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 04:48:43,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:48:43,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 04:48:43,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:48:43,173 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 127 [2021-11-19 04:48:43,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 512 transitions, 3915 flow. Second operand has 9 states, 9 states have (on average 56.666666666666664) internal successors, (510), 9 states have internal predecessors, (510), 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) [2021-11-19 04:48:43,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:48:43,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 127 [2021-11-19 04:48:43,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:48:57,302 INFO L129 PetriNetUnfolder]: 16160/41788 cut-off events. [2021-11-19 04:48:57,303 INFO L130 PetriNetUnfolder]: For 97737/97882 co-relation queries the response was YES. [2021-11-19 04:48:58,041 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144429 conditions, 41788 events. 16160/41788 cut-off events. For 97737/97882 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 423392 event pairs, 2581 based on Foata normal form. 109/40900 useless extension candidates. Maximal degree in co-relation 144339. Up to 6674 conditions per place. [2021-11-19 04:48:58,170 INFO L132 encePairwiseOnDemand]: 112/127 looper letters, 1721 selfloop transitions, 155 changer transitions 9/1969 dead transitions. [2021-11-19 04:48:58,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 1969 transitions, 17780 flow [2021-11-19 04:48:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-19 04:48:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-11-19 04:48:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 2501 transitions. [2021-11-19 04:48:58,176 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5967549510856598 [2021-11-19 04:48:58,176 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 2501 transitions. [2021-11-19 04:48:58,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 2501 transitions. [2021-11-19 04:48:58,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:58,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 2501 transitions. [2021-11-19 04:48:58,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 75.78787878787878) internal successors, (2501), 33 states have internal predecessors, (2501), 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) [2021-11-19 04:48:58,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 127.0) internal successors, (4318), 34 states have internal predecessors, (4318), 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) [2021-11-19 04:48:58,193 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 127.0) internal successors, (4318), 34 states have internal predecessors, (4318), 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) [2021-11-19 04:48:58,193 INFO L186 Difference]: Start difference. First operand has 322 places, 512 transitions, 3915 flow. Second operand 33 states and 2501 transitions. [2021-11-19 04:48:58,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 1969 transitions, 17780 flow [2021-11-19 04:48:59,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 1969 transitions, 17653 flow, removed 63 selfloop flow, removed 1 redundant places. [2021-11-19 04:48:59,154 INFO L242 Difference]: Finished difference. Result has 376 places, 567 transitions, 4941 flow [2021-11-19 04:48:59,155 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=3806, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=4941, PETRI_PLACES=376, PETRI_TRANSITIONS=567} [2021-11-19 04:48:59,156 INFO L334 CegarLoopForPetriNet]: 124 programPoint places, 252 predicate places. [2021-11-19 04:48:59,156 INFO L470 AbstractCegarLoop]: Abstraction has has 376 places, 567 transitions, 4941 flow [2021-11-19 04:48:59,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 56.666666666666664) internal successors, (510), 9 states have internal predecessors, (510), 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) [2021-11-19 04:48:59,156 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:48:59,157 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:48:59,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:59,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-19 04:48:59,371 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-19 04:48:59,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:59,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1287032888, now seen corresponding path program 3 times [2021-11-19 04:48:59,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:59,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371402047] [2021-11-19 04:48:59,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:59,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-19 04:48:59,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:48:59,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371402047] [2021-11-19 04:48:59,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371402047] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:48:59,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36998106] [2021-11-19 04:48:59,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 04:48:59,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:48:59,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:59,643 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:48:59,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7d330f7-1853-45ed-8562-522c557a9c49/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 04:48:59,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-19 04:48:59,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:48:59,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 04:48:59,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:59,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-19 04:49:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-19 04:49:00,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:49:00,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36998106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:49:00,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:49:00,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2021-11-19 04:49:00,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606610870] [2021-11-19 04:49:00,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:49:00,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 04:49:00,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:49:00,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 04:49:00,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:49:00,039 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 127 [2021-11-19 04:49:00,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 567 transitions, 4941 flow. Second operand has 9 states, 9 states have (on average 56.666666666666664) internal successors, (510), 9 states have internal predecessors, (510), 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) [2021-11-19 04:49:00,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:49:00,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 127 [2021-11-19 04:49:00,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand