./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:31:06,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:31:06,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:31:07,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:31:07,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:31:07,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:31:07,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:31:07,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:31:07,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:31:07,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:31:07,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:31:07,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:31:07,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:31:07,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:31:07,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:31:07,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:31:07,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:31:07,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:31:07,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:31:07,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:31:07,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:31:07,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:31:07,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:31:07,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:31:07,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:31:07,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:31:07,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:31:07,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:31:07,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:31:07,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:31:07,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:31:07,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:31:07,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:31:07,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:31:07,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:31:07,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:31:07,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:31:07,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:31:07,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:31:07,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:31:07,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:31:07,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 21:31:07,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:31:07,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:31:07,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:31:07,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:31:07,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:31:07,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:31:07,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:31:07,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:31:07,062 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:31:07,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:31:07,062 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:31:07,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:31:07,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:31:07,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:31:07,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:31:07,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:31:07,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:31:07,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:31:07,064 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 21:31:07,064 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:31:07,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:31:07,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:31:07,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:31:07,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:31:07,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:31:07,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:31:07,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:31:07,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:31:07,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:31:07,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:31:07,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:31:07,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:31:07,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:31:07,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:31:07,067 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:31:07,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:31:07,067 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:31:07,067 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f9d381010c40c0aeec814019363f065d1b11569cf33ee927950bcd4ef29f20 [2022-12-13 21:31:07,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:31:07,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:31:07,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:31:07,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:31:07,294 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:31:07,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-12-13 21:31:09,838 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:31:10,085 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:31:10,085 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/sv-benchmarks/c/goblint-regression/09-regions_11-arraylist_nr.i [2022-12-13 21:31:10,099 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/data/8fed5ae0b/36a107241b8542099abee02c173fddd6/FLAG20ebb1db2 [2022-12-13 21:31:10,414 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/data/8fed5ae0b/36a107241b8542099abee02c173fddd6 [2022-12-13 21:31:10,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:31:10,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:31:10,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:31:10,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:31:10,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:31:10,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:31:10" (1/1) ... [2022-12-13 21:31:10,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5764b10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:10, skipping insertion in model container [2022-12-13 21:31:10,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:31:10" (1/1) ... [2022-12-13 21:31:10,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:31:10,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:31:10,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:31:10,918 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:31:10,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:31:11,037 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:31:11,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11 WrapperNode [2022-12-13 21:31:11,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:31:11,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:31:11,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:31:11,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:31:11,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,088 INFO L138 Inliner]: procedures = 370, calls = 30, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 236 [2022-12-13 21:31:11,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:31:11,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:31:11,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:31:11,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:31:11,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,139 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:31:11,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:31:11,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:31:11,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:31:11,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (1/1) ... [2022-12-13 21:31:11,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:31:11,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:31:11,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:31:11,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:31:11,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 21:31:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 21:31:11,207 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 21:31:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:31:11,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:31:11,209 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 21:31:11,329 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:31:11,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:31:11,738 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:31:11,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:31:11,748 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 21:31:11,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:11 BoogieIcfgContainer [2022-12-13 21:31:11,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:31:11,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:31:11,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:31:11,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:31:11,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:31:10" (1/3) ... [2022-12-13 21:31:11,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a15f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:31:11, skipping insertion in model container [2022-12-13 21:31:11,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:31:11" (2/3) ... [2022-12-13 21:31:11,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a15f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:31:11, skipping insertion in model container [2022-12-13 21:31:11,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:31:11" (3/3) ... [2022-12-13 21:31:11,760 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_11-arraylist_nr.i [2022-12-13 21:31:11,768 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 21:31:11,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:31:11,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 21:31:11,779 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:31:11,870 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:31:11,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 282 transitions, 569 flow [2022-12-13 21:31:12,005 INFO L130 PetriNetUnfolder]: 6/281 cut-off events. [2022-12-13 21:31:12,005 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:31:12,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 281 events. 6/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 392 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-13 21:31:12,011 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 282 transitions, 569 flow [2022-12-13 21:31:12,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 281 transitions, 565 flow [2022-12-13 21:31:12,022 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:31:12,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 279 places, 281 transitions, 565 flow [2022-12-13 21:31:12,036 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 279 places, 281 transitions, 565 flow [2022-12-13 21:31:12,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 281 transitions, 565 flow [2022-12-13 21:31:12,096 INFO L130 PetriNetUnfolder]: 6/281 cut-off events. [2022-12-13 21:31:12,096 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:31:12,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 281 events. 6/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 392 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 155. Up to 2 conditions per place. [2022-12-13 21:31:12,101 INFO L119 LiptonReduction]: Number of co-enabled transitions 6512 [2022-12-13 21:31:37,639 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:31:52,583 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:32:02,229 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 141 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:32:55,874 WARN L233 SmtUtils]: Spent 49.01s on a formula simplification. DAG size of input: 227 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:33:21,302 WARN L233 SmtUtils]: Spent 25.42s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:34:23,419 WARN L233 SmtUtils]: Spent 1.04m on a formula simplification. DAG size of input: 227 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:34:53,923 WARN L233 SmtUtils]: Spent 30.50s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:36:25,076 WARN L233 SmtUtils]: Spent 1.52m on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:37:16,532 WARN L233 SmtUtils]: Spent 51.45s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:38:11,475 WARN L233 SmtUtils]: Spent 54.94s on a formula simplification that was a NOOP. DAG size: 289 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:38:50,426 WARN L233 SmtUtils]: Spent 38.94s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:39:57,030 WARN L233 SmtUtils]: Spent 1.11m on a formula simplification that was a NOOP. DAG size: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:40:53,529 WARN L233 SmtUtils]: Spent 56.50s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:41:26,716 WARN L233 SmtUtils]: Spent 33.18s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:42:02,952 WARN L233 SmtUtils]: Spent 36.23s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 21:42:02,956 INFO L134 LiptonReduction]: Checked pairs total: 50053 [2022-12-13 21:42:02,956 INFO L136 LiptonReduction]: Total number of compositions: 246 [2022-12-13 21:42:02,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:42:02,969 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3502be4b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:42:02,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-13 21:42:02,972 INFO L130 PetriNetUnfolder]: 2/5 cut-off events. [2022-12-13 21:42:02,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:42:02,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:02,973 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 21:42:02,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:02,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:02,977 INFO L85 PathProgramCache]: Analyzing trace with hash 923520, now seen corresponding path program 1 times [2022-12-13 21:42:02,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:02,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218828543] [2022-12-13 21:42:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:02,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:42:03,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218828543] [2022-12-13 21:42:03,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218828543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:42:03,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:42:03,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:42:03,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343808423] [2022-12-13 21:42:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:42:03,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:42:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:03,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:42:03,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:42:03,161 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 528 [2022-12-13 21:42:03,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:03,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:03,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 528 [2022-12-13 21:42:03,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:03,694 INFO L130 PetriNetUnfolder]: 66/287 cut-off events. [2022-12-13 21:42:03,694 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:42:03,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 287 events. 66/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1305 event pairs, 64 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 428. Up to 155 conditions per place. [2022-12-13 21:42:03,696 INFO L137 encePairwiseOnDemand]: 515/528 looper letters, 25 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2022-12-13 21:42:03,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 205 flow [2022-12-13 21:42:03,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:42:03,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:42:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 857 transitions. [2022-12-13 21:42:03,708 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5410353535353535 [2022-12-13 21:42:03,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 857 transitions. [2022-12-13 21:42:03,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 857 transitions. [2022-12-13 21:42:03,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:03,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 857 transitions. [2022-12-13 21:42:03,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:03,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:03,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:03,723 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 171 flow. Second operand 3 states and 857 transitions. [2022-12-13 21:42:03,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 205 flow [2022-12-13 21:42:03,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:42:03,727 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 160 flow [2022-12-13 21:42:03,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2022-12-13 21:42:03,731 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -8 predicate places. [2022-12-13 21:42:03,731 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 160 flow [2022-12-13 21:42:03,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:03,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:03,732 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:03,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:42:03,732 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:03,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:03,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1938759441, now seen corresponding path program 1 times [2022-12-13 21:42:03,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:03,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656162474] [2022-12-13 21:42:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:03,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:42:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:03,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656162474] [2022-12-13 21:42:03,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656162474] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:03,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722449030] [2022-12-13 21:42:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:03,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:03,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:03,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:03,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:42:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:03,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:42:03,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:42:03,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:42:03,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722449030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:42:03,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:42:03,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-13 21:42:03,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300006413] [2022-12-13 21:42:03,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:42:03,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:42:03,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:03,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:42:03,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:42:03,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 528 [2022-12-13 21:42:03,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:03,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:03,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 528 [2022-12-13 21:42:03,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:04,905 INFO L130 PetriNetUnfolder]: 66/288 cut-off events. [2022-12-13 21:42:04,905 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:42:04,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 288 events. 66/288 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1314 event pairs, 64 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 444. Up to 156 conditions per place. [2022-12-13 21:42:04,907 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 26 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2022-12-13 21:42:04,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 218 flow [2022-12-13 21:42:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:42:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:42:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 847 transitions. [2022-12-13 21:42:04,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5347222222222222 [2022-12-13 21:42:04,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 847 transitions. [2022-12-13 21:42:04,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 847 transitions. [2022-12-13 21:42:04,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:04,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 847 transitions. [2022-12-13 21:42:04,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:04,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:04,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:04,916 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 160 flow. Second operand 3 states and 847 transitions. [2022-12-13 21:42:04,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 218 flow [2022-12-13 21:42:04,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 214 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 21:42:04,918 INFO L231 Difference]: Finished difference. Result has 79 places, 75 transitions, 168 flow [2022-12-13 21:42:04,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=79, PETRI_TRANSITIONS=75} [2022-12-13 21:42:04,919 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, -6 predicate places. [2022-12-13 21:42:04,919 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 75 transitions, 168 flow [2022-12-13 21:42:04,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:04,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:04,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:04,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:42:05,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:05,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:05,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1750403137, now seen corresponding path program 1 times [2022-12-13 21:42:05,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:05,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068674910] [2022-12-13 21:42:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:05,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:42:05,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:05,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068674910] [2022-12-13 21:42:05,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068674910] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:05,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982274424] [2022-12-13 21:42:05,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:05,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:05,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:05,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:05,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 21:42:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:05,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:42:05,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:05,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:42:05,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:42:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:42:05,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982274424] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:42:05,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:42:05,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 21:42:05,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314577059] [2022-12-13 21:42:05,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:42:05,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:42:05,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:05,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:42:05,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:42:05,725 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 528 [2022-12-13 21:42:05,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:05,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:05,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 528 [2022-12-13 21:42:05,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:06,500 INFO L130 PetriNetUnfolder]: 66/291 cut-off events. [2022-12-13 21:42:06,500 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 21:42:06,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 291 events. 66/291 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1313 event pairs, 64 based on Foata normal form. 3/271 useless extension candidates. Maximal degree in co-relation 442. Up to 156 conditions per place. [2022-12-13 21:42:06,501 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 26 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2022-12-13 21:42:06,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 242 flow [2022-12-13 21:42:06,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:42:06,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:42:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1665 transitions. [2022-12-13 21:42:06,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5255681818181818 [2022-12-13 21:42:06,504 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1665 transitions. [2022-12-13 21:42:06,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1665 transitions. [2022-12-13 21:42:06,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:06,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1665 transitions. [2022-12-13 21:42:06,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:06,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:06,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:06,519 INFO L175 Difference]: Start difference. First operand has 79 places, 75 transitions, 168 flow. Second operand 6 states and 1665 transitions. [2022-12-13 21:42:06,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 242 flow [2022-12-13 21:42:06,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 78 transitions, 238 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 21:42:06,522 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 200 flow [2022-12-13 21:42:06,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=200, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2022-12-13 21:42:06,523 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 1 predicate places. [2022-12-13 21:42:06,524 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 200 flow [2022-12-13 21:42:06,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 273.6666666666667) internal successors, (1642), 6 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:06,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:06,526 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:06,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 21:42:06,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:06,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:06,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:06,727 INFO L85 PathProgramCache]: Analyzing trace with hash 345205258, now seen corresponding path program 2 times [2022-12-13 21:42:06,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:06,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358430668] [2022-12-13 21:42:06,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:06,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:07,056 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 21:42:07,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:07,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358430668] [2022-12-13 21:42:07,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358430668] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:07,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472755787] [2022-12-13 21:42:07,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:42:07,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:07,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:07,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:07,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 21:42:07,241 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 21:42:07,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:42:07,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 21:42:07,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:07,273 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 11 [2022-12-13 21:42:07,286 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 21:42:07,306 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 21:42:07,306 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 21:42:07,332 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 21:42:07,333 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 21:42:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 21:42:07,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:42:07,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472755787] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:42:07,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:42:07,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-12-13 21:42:07,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632218984] [2022-12-13 21:42:07,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:42:07,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:42:07,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:07,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:42:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:42:07,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 528 [2022-12-13 21:42:07,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:07,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:07,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 528 [2022-12-13 21:42:07,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:09,164 INFO L130 PetriNetUnfolder]: 445/1505 cut-off events. [2022-12-13 21:42:09,164 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 21:42:09,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2504 conditions, 1505 events. 445/1505 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9490 event pairs, 37 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 2470. Up to 616 conditions per place. [2022-12-13 21:42:09,170 INFO L137 encePairwiseOnDemand]: 506/528 looper letters, 99 selfloop transitions, 69 changer transitions 0/197 dead transitions. [2022-12-13 21:42:09,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 197 transitions, 774 flow [2022-12-13 21:42:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:42:09,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 21:42:09,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1508 transitions. [2022-12-13 21:42:09,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.476010101010101 [2022-12-13 21:42:09,176 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1508 transitions. [2022-12-13 21:42:09,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1508 transitions. [2022-12-13 21:42:09,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:09,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1508 transitions. [2022-12-13 21:42:09,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.33333333333334) internal successors, (1508), 6 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:09,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:09,183 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:09,183 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 200 flow. Second operand 6 states and 1508 transitions. [2022-12-13 21:42:09,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 197 transitions, 774 flow [2022-12-13 21:42:09,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 197 transitions, 760 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 21:42:09,187 INFO L231 Difference]: Finished difference. Result has 95 places, 146 transitions, 640 flow [2022-12-13 21:42:09,187 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=640, PETRI_PLACES=95, PETRI_TRANSITIONS=146} [2022-12-13 21:42:09,188 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 10 predicate places. [2022-12-13 21:42:09,188 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 146 transitions, 640 flow [2022-12-13 21:42:09,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 226.0) internal successors, (1356), 6 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:09,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:09,190 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:09,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 21:42:09,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-13 21:42:09,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:09,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:09,392 INFO L85 PathProgramCache]: Analyzing trace with hash -527662165, now seen corresponding path program 1 times [2022-12-13 21:42:09,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:09,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881396449] [2022-12-13 21:42:09,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:09,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 21:42:09,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:09,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881396449] [2022-12-13 21:42:09,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881396449] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:09,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625214213] [2022-12-13 21:42:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:09,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:09,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:09,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 21:42:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:10,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1257 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:42:10,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:42:10,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:42:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 21:42:10,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625214213] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:42:10,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:42:10,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2022-12-13 21:42:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5676136] [2022-12-13 21:42:10,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:42:10,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 21:42:10,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 21:42:10,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:42:10,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 528 [2022-12-13 21:42:10,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 146 transitions, 640 flow. Second operand has 14 states, 14 states have (on average 270.7142857142857) internal successors, (3790), 14 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:10,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:10,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 528 [2022-12-13 21:42:10,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:13,003 INFO L130 PetriNetUnfolder]: 253/1083 cut-off events. [2022-12-13 21:42:13,003 INFO L131 PetriNetUnfolder]: For 219/242 co-relation queries the response was YES. [2022-12-13 21:42:13,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1083 events. 253/1083 cut-off events. For 219/242 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6775 event pairs, 91 based on Foata normal form. 6/1014 useless extension candidates. Maximal degree in co-relation 2014. Up to 358 conditions per place. [2022-12-13 21:42:13,007 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 40 selfloop transitions, 14 changer transitions 0/153 dead transitions. [2022-12-13 21:42:13,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 153 transitions, 788 flow [2022-12-13 21:42:13,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:42:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 21:42:13,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3811 transitions. [2022-12-13 21:42:13,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5155573593073594 [2022-12-13 21:42:13,013 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3811 transitions. [2022-12-13 21:42:13,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3811 transitions. [2022-12-13 21:42:13,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:13,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3811 transitions. [2022-12-13 21:42:13,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 272.2142857142857) internal successors, (3811), 14 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:13,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 528.0) internal successors, (7920), 15 states have internal predecessors, (7920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:13,026 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 528.0) internal successors, (7920), 15 states have internal predecessors, (7920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:13,026 INFO L175 Difference]: Start difference. First operand has 95 places, 146 transitions, 640 flow. Second operand 14 states and 3811 transitions. [2022-12-13 21:42:13,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 153 transitions, 788 flow [2022-12-13 21:42:13,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 153 transitions, 788 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:42:13,031 INFO L231 Difference]: Finished difference. Result has 109 places, 153 transitions, 716 flow [2022-12-13 21:42:13,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=716, PETRI_PLACES=109, PETRI_TRANSITIONS=153} [2022-12-13 21:42:13,032 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 24 predicate places. [2022-12-13 21:42:13,032 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 153 transitions, 716 flow [2022-12-13 21:42:13,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 270.7142857142857) internal successors, (3790), 14 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:13,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:13,033 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:13,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 21:42:13,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:13,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:13,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:13,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2085029459, now seen corresponding path program 2 times [2022-12-13 21:42:13,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:13,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418971453] [2022-12-13 21:42:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:13,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:13,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:13,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418971453] [2022-12-13 21:42:13,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418971453] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:13,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478880829] [2022-12-13 21:42:13,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:42:13,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:13,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:13,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:13,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 21:42:14,081 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 21:42:14,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:42:14,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 21:42:14,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:14,103 INFO L350 Elim1Store]: Elim1 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 [2022-12-13 21:42:14,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:42:14,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 21:42:14,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:42:14,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:42:14,147 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 21:42:14,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-12-13 21:42:14,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:42:14,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:42:14,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:42:14,178 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 21:42:14,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-12-13 21:42:14,206 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-12-13 21:42:14,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:42:14,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478880829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:42:14,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:42:14,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-12-13 21:42:14,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596480328] [2022-12-13 21:42:14,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:42:14,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 21:42:14,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:14,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:42:14,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:42:14,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 528 [2022-12-13 21:42:14,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 153 transitions, 716 flow. Second operand has 8 states, 8 states have (on average 202.75) internal successors, (1622), 8 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:14,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:14,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 528 [2022-12-13 21:42:14,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:16,477 INFO L130 PetriNetUnfolder]: 1011/2561 cut-off events. [2022-12-13 21:42:16,477 INFO L131 PetriNetUnfolder]: For 883/897 co-relation queries the response was YES. [2022-12-13 21:42:16,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5971 conditions, 2561 events. 1011/2561 cut-off events. For 883/897 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 15989 event pairs, 242 based on Foata normal form. 0/2474 useless extension candidates. Maximal degree in co-relation 5901. Up to 1934 conditions per place. [2022-12-13 21:42:16,498 INFO L137 encePairwiseOnDemand]: 508/528 looper letters, 162 selfloop transitions, 62 changer transitions 0/256 dead transitions. [2022-12-13 21:42:16,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 256 transitions, 1460 flow [2022-12-13 21:42:16,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:42:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 21:42:16,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1763 transitions. [2022-12-13 21:42:16,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4173768939393939 [2022-12-13 21:42:16,503 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1763 transitions. [2022-12-13 21:42:16,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1763 transitions. [2022-12-13 21:42:16,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:16,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1763 transitions. [2022-12-13 21:42:16,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.375) internal successors, (1763), 8 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:16,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:16,514 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:16,514 INFO L175 Difference]: Start difference. First operand has 109 places, 153 transitions, 716 flow. Second operand 8 states and 1763 transitions. [2022-12-13 21:42:16,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 256 transitions, 1460 flow [2022-12-13 21:42:16,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 256 transitions, 1388 flow, removed 26 selfloop flow, removed 10 redundant places. [2022-12-13 21:42:16,523 INFO L231 Difference]: Finished difference. Result has 110 places, 226 transitions, 1122 flow [2022-12-13 21:42:16,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1122, PETRI_PLACES=110, PETRI_TRANSITIONS=226} [2022-12-13 21:42:16,524 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 25 predicate places. [2022-12-13 21:42:16,524 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 226 transitions, 1122 flow [2022-12-13 21:42:16,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 202.75) internal successors, (1622), 8 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:16,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:16,525 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:16,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 21:42:16,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 21:42:16,725 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash 710913388, now seen corresponding path program 1 times [2022-12-13 21:42:16,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:16,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941635517] [2022-12-13 21:42:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:16,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:17,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:17,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941635517] [2022-12-13 21:42:17,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941635517] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:17,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721600815] [2022-12-13 21:42:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:17,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:17,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:17,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 21:42:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:17,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 2396 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:42:17,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:17,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:42:17,757 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:17,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721600815] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:42:17,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:42:17,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 21:42:17,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112358111] [2022-12-13 21:42:17,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:42:17,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 21:42:17,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 21:42:17,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:42:17,853 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 528 [2022-12-13 21:42:17,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 226 transitions, 1122 flow. Second operand has 9 states, 9 states have (on average 274.0) internal successors, (2466), 9 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:17,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:17,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 528 [2022-12-13 21:42:17,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:20,584 INFO L130 PetriNetUnfolder]: 322/1583 cut-off events. [2022-12-13 21:42:20,584 INFO L131 PetriNetUnfolder]: For 387/429 co-relation queries the response was YES. [2022-12-13 21:42:20,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3485 conditions, 1583 events. 322/1583 cut-off events. For 387/429 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11353 event pairs, 88 based on Foata normal form. 3/1525 useless extension candidates. Maximal degree in co-relation 3435. Up to 509 conditions per place. [2022-12-13 21:42:20,591 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 52 selfloop transitions, 7 changer transitions 0/230 dead transitions. [2022-12-13 21:42:20,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 230 transitions, 1264 flow [2022-12-13 21:42:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:42:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 21:42:20,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2212 transitions. [2022-12-13 21:42:20,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5236742424242424 [2022-12-13 21:42:20,594 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2212 transitions. [2022-12-13 21:42:20,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2212 transitions. [2022-12-13 21:42:20,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:20,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2212 transitions. [2022-12-13 21:42:20,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 276.5) internal successors, (2212), 8 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:20,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:20,601 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 528.0) internal successors, (4752), 9 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:20,601 INFO L175 Difference]: Start difference. First operand has 110 places, 226 transitions, 1122 flow. Second operand 8 states and 2212 transitions. [2022-12-13 21:42:20,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 230 transitions, 1264 flow [2022-12-13 21:42:20,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 230 transitions, 1238 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-12-13 21:42:20,607 INFO L231 Difference]: Finished difference. Result has 120 places, 230 transitions, 1152 flow [2022-12-13 21:42:20,608 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1152, PETRI_PLACES=120, PETRI_TRANSITIONS=230} [2022-12-13 21:42:20,608 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 35 predicate places. [2022-12-13 21:42:20,608 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 230 transitions, 1152 flow [2022-12-13 21:42:20,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 274.0) internal successors, (2466), 9 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:20,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:20,609 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:20,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 21:42:20,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 21:42:20,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:20,811 INFO L85 PathProgramCache]: Analyzing trace with hash 508569408, now seen corresponding path program 2 times [2022-12-13 21:42:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:20,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654984943] [2022-12-13 21:42:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:20,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:42:22,007 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:22,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:42:22,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654984943] [2022-12-13 21:42:22,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654984943] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:42:22,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605777650] [2022-12-13 21:42:22,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:42:22,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:22,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:42:22,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:42:22,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 21:42:23,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:42:23,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:42:23,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 6728 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:42:23,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:42:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:23,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:42:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 21:42:23,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605777650] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:42:23,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:42:23,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 13 [2022-12-13 21:42:23,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967491285] [2022-12-13 21:42:23,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:42:23,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:42:23,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:42:23,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:42:23,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:42:23,432 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 528 [2022-12-13 21:42:23,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 230 transitions, 1152 flow. Second operand has 13 states, 13 states have (on average 273.7692307692308) internal successors, (3559), 13 states have internal predecessors, (3559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:23,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:42:23,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 528 [2022-12-13 21:42:23,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:42:28,031 INFO L130 PetriNetUnfolder]: 322/1587 cut-off events. [2022-12-13 21:42:28,031 INFO L131 PetriNetUnfolder]: For 408/450 co-relation queries the response was YES. [2022-12-13 21:42:28,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3500 conditions, 1587 events. 322/1587 cut-off events. For 408/450 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11368 event pairs, 88 based on Foata normal form. 7/1534 useless extension candidates. Maximal degree in co-relation 3442. Up to 509 conditions per place. [2022-12-13 21:42:28,041 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 52 selfloop transitions, 11 changer transitions 0/234 dead transitions. [2022-12-13 21:42:28,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 234 transitions, 1310 flow [2022-12-13 21:42:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:42:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 21:42:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3304 transitions. [2022-12-13 21:42:28,048 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5214646464646465 [2022-12-13 21:42:28,048 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3304 transitions. [2022-12-13 21:42:28,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3304 transitions. [2022-12-13 21:42:28,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:42:28,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3304 transitions. [2022-12-13 21:42:28,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 275.3333333333333) internal successors, (3304), 12 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:28,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 528.0) internal successors, (6864), 13 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:28,062 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 528.0) internal successors, (6864), 13 states have internal predecessors, (6864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:28,062 INFO L175 Difference]: Start difference. First operand has 120 places, 230 transitions, 1152 flow. Second operand 12 states and 3304 transitions. [2022-12-13 21:42:28,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 234 transitions, 1310 flow [2022-12-13 21:42:28,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 234 transitions, 1282 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-12-13 21:42:28,074 INFO L231 Difference]: Finished difference. Result has 133 places, 234 transitions, 1196 flow [2022-12-13 21:42:28,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1196, PETRI_PLACES=133, PETRI_TRANSITIONS=234} [2022-12-13 21:42:28,074 INFO L288 CegarLoopForPetriNet]: 85 programPoint places, 48 predicate places. [2022-12-13 21:42:28,075 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 234 transitions, 1196 flow [2022-12-13 21:42:28,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 273.7692307692308) internal successors, (3559), 13 states have internal predecessors, (3559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:42:28,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:42:28,076 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:42:28,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 21:42:28,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:42:28,278 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-12-13 21:42:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:42:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1854962128, now seen corresponding path program 3 times [2022-12-13 21:42:28,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:42:28,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326375131] [2022-12-13 21:42:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:42:28,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:42:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:43:15,101 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-12-13 21:43:15,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:43:15,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326375131] [2022-12-13 21:43:15,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326375131] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:43:15,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610047313] [2022-12-13 21:43:15,101 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:43:15,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:43:15,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:43:15,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:43:15,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c0f981-80d0-4514-b3c2-2c5bc6f589da/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process