./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF --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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:41:05,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:41:05,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:41:05,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:41:05,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:41:05,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:41:05,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:41:05,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:41:05,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:41:05,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:41:05,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:41:05,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:41:05,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:41:05,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:41:05,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:41:05,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:41:05,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:41:05,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:41:05,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:41:05,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:41:05,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:41:05,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:41:05,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:41:05,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:41:05,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:41:05,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:41:05,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:41:05,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:41:05,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:41:05,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:41:05,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:41:05,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:41:05,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:41:05,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:41:05,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:41:05,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:41:05,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:41:05,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:41:05,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:41:05,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:41:05,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:41:05,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 05:41:06,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:41:06,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:41:06,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:41:06,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:41:06,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:41:06,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:41:06,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:41:06,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:41:06,053 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:41:06,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:41:06,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:41:06,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:41:06,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:41:06,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:41:06,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:41:06,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:41:06,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:41:06,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:41:06,057 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 05:41:06,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:41:06,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:41:06,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:41:06,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:41:06,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:41:06,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:41:06,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:41:06,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:41:06,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:41:06,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:41:06,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:41:06,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:41:06,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:41:06,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:41:06,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:41:06,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:41:06,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:41:06,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2021-11-20 05:41:06,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:41:06,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:41:06,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:41:06,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:41:06,392 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:41:06,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2021-11-20 05:41:06,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/data/3dc60f21f/d9f9b24e5bd5449b8e9e61d95dc1057d/FLAGc049a951a [2021-11-20 05:41:07,002 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:41:07,007 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2021-11-20 05:41:07,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/data/3dc60f21f/d9f9b24e5bd5449b8e9e61d95dc1057d/FLAGc049a951a [2021-11-20 05:41:07,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/data/3dc60f21f/d9f9b24e5bd5449b8e9e61d95dc1057d [2021-11-20 05:41:07,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:41:07,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:41:07,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:41:07,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:41:07,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:41:07,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:41:07" (1/1) ... [2021-11-20 05:41:07,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5e759c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:07, skipping insertion in model container [2021-11-20 05:41:07,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:41:07" (1/1) ... [2021-11-20 05:41:07,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:41:07,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:41:07,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:41:07,901 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:41:07,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:41:08,001 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:41:08,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08 WrapperNode [2021-11-20 05:41:08,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:41:08,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:41:08,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:41:08,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:41:08,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,061 INFO L137 Inliner]: procedures = 262, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2021-11-20 05:41:08,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:41:08,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:41:08,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:41:08,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:41:08,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:41:08,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:41:08,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:41:08,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:41:08,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (1/1) ... [2021-11-20 05:41:08,111 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:41:08,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:08,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:41:08,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:41:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:41:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:41:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:41:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:41:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-20 05:41:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:41:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-20 05:41:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-20 05:41:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:41:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:41:08,192 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 05:41:08,362 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:41:08,376 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:41:08,649 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:41:08,658 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:41:08,658 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-20 05:41:08,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:08 BoogieIcfgContainer [2021-11-20 05:41:08,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:41:08,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:41:08,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:41:08,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:41:08,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:41:07" (1/3) ... [2021-11-20 05:41:08,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40de205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:41:08, skipping insertion in model container [2021-11-20 05:41:08,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:08" (2/3) ... [2021-11-20 05:41:08,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40de205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:41:08, skipping insertion in model container [2021-11-20 05:41:08,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:08" (3/3) ... [2021-11-20 05:41:08,678 INFO L111 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2021-11-20 05:41:08,684 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 05:41:08,684 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:41:08,684 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-20 05:41:08,684 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 05:41:08,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,746 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,747 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,748 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,749 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,750 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,751 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,752 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,753 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,754 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,755 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,756 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,757 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,758 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,759 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,760 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,760 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,760 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,760 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,761 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,762 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,763 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,764 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,767 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,768 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,769 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,771 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,772 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,773 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,774 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,777 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,778 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,779 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,780 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,781 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,781 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,781 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,782 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,783 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,784 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,785 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,786 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,787 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,788 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,789 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,790 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,791 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,792 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,793 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,794 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,795 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,796 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,797 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,798 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,801 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post34#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,802 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~post32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~nondet33#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#in~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,803 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,804 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,805 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_cache_entry_addref_~entry#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:41:08,810 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 05:41:08,891 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:41:08,899 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:41:08,899 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-20 05:41:08,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 125 transitions, 255 flow [2021-11-20 05:41:09,010 INFO L129 PetriNetUnfolder]: 6/124 cut-off events. [2021-11-20 05:41:09,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:41:09,016 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 6/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 218 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2021-11-20 05:41:09,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 125 transitions, 255 flow [2021-11-20 05:41:09,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 124 transitions, 251 flow [2021-11-20 05:41:09,048 INFO L129 PetriNetUnfolder]: 4/54 cut-off events. [2021-11-20 05:41:09,049 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:41:09,049 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:09,050 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:09,050 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:09,060 INFO L85 PathProgramCache]: Analyzing trace with hash 397060765, now seen corresponding path program 1 times [2021-11-20 05:41:09,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:09,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206995023] [2021-11-20 05:41:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:09,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:09,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:09,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:09,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206995023] [2021-11-20 05:41:09,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206995023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:09,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:09,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:41:09,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375461345] [2021-11-20 05:41:09,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:09,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:41:09,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:41:09,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:41:09,350 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 125 [2021-11-20 05:41:09,355 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 124 transitions, 251 flow. Second operand has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:09,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 125 [2021-11-20 05:41:09,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:09,435 INFO L129 PetriNetUnfolder]: 3/121 cut-off events. [2021-11-20 05:41:09,435 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:41:09,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 121 events. 3/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 217 event pairs, 0 based on Foata normal form. 3/115 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2021-11-20 05:41:09,440 INFO L132 encePairwiseOnDemand]: 122/125 looper letters, 1 selfloop transitions, 0 changer transitions 0/121 dead transitions. [2021-11-20 05:41:09,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 121 transitions, 247 flow [2021-11-20 05:41:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:41:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-20 05:41:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 246 transitions. [2021-11-20 05:41:09,463 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.984 [2021-11-20 05:41:09,464 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 246 transitions. [2021-11-20 05:41:09,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 246 transitions. [2021-11-20 05:41:09,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:09,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 246 transitions. [2021-11-20 05:41:09,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,491 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,493 INFO L186 Difference]: Start difference. First operand has 122 places, 124 transitions, 251 flow. Second operand 2 states and 246 transitions. [2021-11-20 05:41:09,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 121 transitions, 247 flow [2021-11-20 05:41:09,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 121 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:41:09,509 INFO L242 Difference]: Finished difference. Result has 122 places, 121 transitions, 244 flow [2021-11-20 05:41:09,512 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=244, PETRI_PLACES=122, PETRI_TRANSITIONS=121} [2021-11-20 05:41:09,517 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2021-11-20 05:41:09,517 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 121 transitions, 244 flow [2021-11-20 05:41:09,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,518 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:09,518 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:09,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:41:09,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:09,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1657093153, now seen corresponding path program 1 times [2021-11-20 05:41:09,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:09,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589646545] [2021-11-20 05:41:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:09,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:09,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:09,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589646545] [2021-11-20 05:41:09,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589646545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:09,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:09,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:41:09,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51118647] [2021-11-20 05:41:09,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:09,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:41:09,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:09,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:41:09,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:41:09,608 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 125 [2021-11-20 05:41:09,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 121 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:09,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 125 [2021-11-20 05:41:09,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:09,650 INFO L129 PetriNetUnfolder]: 3/125 cut-off events. [2021-11-20 05:41:09,651 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:41:09,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 125 events. 3/125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 139. Up to 9 conditions per place. [2021-11-20 05:41:09,654 INFO L132 encePairwiseOnDemand]: 122/125 looper letters, 10 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2021-11-20 05:41:09,654 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 125 transitions, 276 flow [2021-11-20 05:41:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:41:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:41:09,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2021-11-20 05:41:09,657 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9466666666666667 [2021-11-20 05:41:09,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2021-11-20 05:41:09,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2021-11-20 05:41:09,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:09,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2021-11-20 05:41:09,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,669 INFO L186 Difference]: Start difference. First operand has 122 places, 121 transitions, 244 flow. Second operand 3 states and 355 transitions. [2021-11-20 05:41:09,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 125 transitions, 276 flow [2021-11-20 05:41:09,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 125 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:41:09,676 INFO L242 Difference]: Finished difference. Result has 125 places, 122 transitions, 256 flow [2021-11-20 05:41:09,676 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2021-11-20 05:41:09,678 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 3 predicate places. [2021-11-20 05:41:09,678 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 256 flow [2021-11-20 05:41:09,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:09,679 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:09,679 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:09,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:41:09,680 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:09,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1891473138, now seen corresponding path program 1 times [2021-11-20 05:41:09,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:09,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584062066] [2021-11-20 05:41:09,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:09,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:09,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:09,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584062066] [2021-11-20 05:41:09,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584062066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:09,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434799784] [2021-11-20 05:41:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:09,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:09,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:09,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:09,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:41:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:09,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:41:09,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:10,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 05:41:10,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:10,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434799784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:10,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:10,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-20 05:41:10,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203034605] [2021-11-20 05:41:10,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:10,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:41:10,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:10,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:41:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:10,031 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2021-11-20 05:41:10,032 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:10,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2021-11-20 05:41:10,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:10,095 INFO L129 PetriNetUnfolder]: 3/155 cut-off events. [2021-11-20 05:41:10,095 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:41:10,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 155 events. 3/155 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 160 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 175. Up to 10 conditions per place. [2021-11-20 05:41:10,100 INFO L132 encePairwiseOnDemand]: 122/125 looper letters, 11 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2021-11-20 05:41:10,100 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 126 transitions, 290 flow [2021-11-20 05:41:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:41:10,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:41:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2021-11-20 05:41:10,103 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9413333333333334 [2021-11-20 05:41:10,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2021-11-20 05:41:10,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2021-11-20 05:41:10,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:10,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2021-11-20 05:41:10,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,110 INFO L186 Difference]: Start difference. First operand has 125 places, 122 transitions, 256 flow. Second operand 3 states and 353 transitions. [2021-11-20 05:41:10,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 126 transitions, 290 flow [2021-11-20 05:41:10,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:41:10,115 INFO L242 Difference]: Finished difference. Result has 127 places, 123 transitions, 266 flow [2021-11-20 05:41:10,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=127, PETRI_TRANSITIONS=123} [2021-11-20 05:41:10,117 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2021-11-20 05:41:10,117 INFO L470 AbstractCegarLoop]: Abstraction has has 127 places, 123 transitions, 266 flow [2021-11-20 05:41:10,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,117 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:10,118 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:10,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:10,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:10,328 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1317859348, now seen corresponding path program 1 times [2021-11-20 05:41:10,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:10,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505211597] [2021-11-20 05:41:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:10,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:10,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:10,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505211597] [2021-11-20 05:41:10,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505211597] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:10,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493716943] [2021-11-20 05:41:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:10,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:10,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:10,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:10,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:41:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:10,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 05:41:10,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:10,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:41:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:10,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493716943] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:41:10,777 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:41:10,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-11-20 05:41:10,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652615343] [2021-11-20 05:41:10,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:41:10,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:41:10,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:10,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:41:10,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-20 05:41:10,788 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2021-11-20 05:41:10,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 123 transitions, 266 flow. Second operand has 10 states, 10 states have (on average 115.1) internal successors, (1151), 10 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:10,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2021-11-20 05:41:10,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:10,931 INFO L129 PetriNetUnfolder]: 3/162 cut-off events. [2021-11-20 05:41:10,931 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-20 05:41:10,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 162 events. 3/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 155 event pairs, 0 based on Foata normal form. 2/155 useless extension candidates. Maximal degree in co-relation 194. Up to 6 conditions per place. [2021-11-20 05:41:10,934 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 11 selfloop transitions, 9 changer transitions 0/133 dead transitions. [2021-11-20 05:41:10,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 133 transitions, 328 flow [2021-11-20 05:41:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:41:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:41:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1039 transitions. [2021-11-20 05:41:10,939 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9235555555555556 [2021-11-20 05:41:10,939 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1039 transitions. [2021-11-20 05:41:10,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1039 transitions. [2021-11-20 05:41:10,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:10,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1039 transitions. [2021-11-20 05:41:10,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 115.44444444444444) internal successors, (1039), 9 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,948 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,949 INFO L186 Difference]: Start difference. First operand has 127 places, 123 transitions, 266 flow. Second operand 9 states and 1039 transitions. [2021-11-20 05:41:10,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 133 transitions, 328 flow [2021-11-20 05:41:10,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 05:41:10,957 INFO L242 Difference]: Finished difference. Result has 137 places, 129 transitions, 314 flow [2021-11-20 05:41:10,957 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=314, PETRI_PLACES=137, PETRI_TRANSITIONS=129} [2021-11-20 05:41:10,959 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 15 predicate places. [2021-11-20 05:41:10,959 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 129 transitions, 314 flow [2021-11-20 05:41:10,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.1) internal successors, (1151), 10 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:10,961 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:10,961 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:10,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:11,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:11,179 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:11,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:11,179 INFO L85 PathProgramCache]: Analyzing trace with hash -626594124, now seen corresponding path program 2 times [2021-11-20 05:41:11,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:11,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659716340] [2021-11-20 05:41:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:11,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:11,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:11,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659716340] [2021-11-20 05:41:11,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659716340] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:11,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013005023] [2021-11-20 05:41:11,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:41:11,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:11,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:11,316 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:11,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:41:11,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:41:11,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:41:11,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:41:11,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:11,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:41:11,526 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-20 05:41:11,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:41:11,587 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-20 05:41:11,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 05:41:11,677 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-20 05:41:11,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-20 05:41:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 05:41:11,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:11,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013005023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:11,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:11,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-11-20 05:41:11,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771445995] [2021-11-20 05:41:11,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:11,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:11,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:11,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:11,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-20 05:41:11,716 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 125 [2021-11-20 05:41:11,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 129 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:11,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:11,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 125 [2021-11-20 05:41:11,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:12,636 INFO L129 PetriNetUnfolder]: 779/2745 cut-off events. [2021-11-20 05:41:12,636 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-20 05:41:12,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4359 conditions, 2745 events. 779/2745 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 19587 event pairs, 424 based on Foata normal form. 0/2478 useless extension candidates. Maximal degree in co-relation 4351. Up to 1258 conditions per place. [2021-11-20 05:41:12,662 INFO L132 encePairwiseOnDemand]: 114/125 looper letters, 75 selfloop transitions, 22 changer transitions 0/183 dead transitions. [2021-11-20 05:41:12,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 183 transitions, 616 flow [2021-11-20 05:41:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:41:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:41:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 572 transitions. [2021-11-20 05:41:12,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7626666666666667 [2021-11-20 05:41:12,666 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 572 transitions. [2021-11-20 05:41:12,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 572 transitions. [2021-11-20 05:41:12,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:12,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 572 transitions. [2021-11-20 05:41:12,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:12,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:12,673 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:12,673 INFO L186 Difference]: Start difference. First operand has 137 places, 129 transitions, 314 flow. Second operand 6 states and 572 transitions. [2021-11-20 05:41:12,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 183 transitions, 616 flow [2021-11-20 05:41:12,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 183 transitions, 610 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-11-20 05:41:12,684 INFO L242 Difference]: Finished difference. Result has 146 places, 150 transitions, 458 flow [2021-11-20 05:41:12,684 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=458, PETRI_PLACES=146, PETRI_TRANSITIONS=150} [2021-11-20 05:41:12,688 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 24 predicate places. [2021-11-20 05:41:12,688 INFO L470 AbstractCegarLoop]: Abstraction has has 146 places, 150 transitions, 458 flow [2021-11-20 05:41:12,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:12,689 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:12,689 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:12,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:12,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:12,903 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:12,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1030322137, now seen corresponding path program 1 times [2021-11-20 05:41:12,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:12,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362014260] [2021-11-20 05:41:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:12,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:12,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:12,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362014260] [2021-11-20 05:41:12,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362014260] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:12,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686813664] [2021-11-20 05:41:12,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:12,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:12,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:13,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:13,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:41:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:13,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:41:13,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:13,211 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:13,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:41:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:13,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686813664] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:41:13,377 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:41:13,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-11-20 05:41:13,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226615943] [2021-11-20 05:41:13,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:41:13,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 05:41:13,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:13,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 05:41:13,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-11-20 05:41:13,384 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2021-11-20 05:41:13,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 150 transitions, 458 flow. Second operand has 18 states, 18 states have (on average 115.27777777777777) internal successors, (2075), 18 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:13,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:13,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2021-11-20 05:41:13,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:13,726 INFO L129 PetriNetUnfolder]: 93/808 cut-off events. [2021-11-20 05:41:13,727 INFO L130 PetriNetUnfolder]: For 74/80 co-relation queries the response was YES. [2021-11-20 05:41:13,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1220 conditions, 808 events. 93/808 cut-off events. For 74/80 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4081 event pairs, 8 based on Foata normal form. 4/760 useless extension candidates. Maximal degree in co-relation 1207. Up to 110 conditions per place. [2021-11-20 05:41:13,736 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 19 selfloop transitions, 21 changer transitions 0/174 dead transitions. [2021-11-20 05:41:13,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 174 transitions, 638 flow [2021-11-20 05:41:13,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 05:41:13,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-20 05:41:13,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2417 transitions. [2021-11-20 05:41:13,745 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9207619047619048 [2021-11-20 05:41:13,745 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2417 transitions. [2021-11-20 05:41:13,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2417 transitions. [2021-11-20 05:41:13,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:13,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2417 transitions. [2021-11-20 05:41:13,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 115.0952380952381) internal successors, (2417), 21 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:13,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 125.0) internal successors, (2750), 22 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:13,763 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 125.0) internal successors, (2750), 22 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:13,763 INFO L186 Difference]: Start difference. First operand has 146 places, 150 transitions, 458 flow. Second operand 21 states and 2417 transitions. [2021-11-20 05:41:13,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 174 transitions, 638 flow [2021-11-20 05:41:13,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 174 transitions, 638 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:41:13,777 INFO L242 Difference]: Finished difference. Result has 171 places, 163 transitions, 588 flow [2021-11-20 05:41:13,777 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=588, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2021-11-20 05:41:13,780 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 49 predicate places. [2021-11-20 05:41:13,780 INFO L470 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 588 flow [2021-11-20 05:41:13,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 115.27777777777777) internal successors, (2075), 18 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:13,782 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:13,782 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:13,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:14,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 05:41:14,003 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:14,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:14,004 INFO L85 PathProgramCache]: Analyzing trace with hash -461165209, now seen corresponding path program 2 times [2021-11-20 05:41:14,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:14,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646657956] [2021-11-20 05:41:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:14,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:14,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:14,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646657956] [2021-11-20 05:41:14,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646657956] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:14,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369903070] [2021-11-20 05:41:14,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:41:14,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:14,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:14,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:14,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:41:14,306 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:41:14,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:41:14,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:41:14,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:14,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:41:14,441 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-20 05:41:14,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-20 05:41:14,490 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-20 05:41:14,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 05:41:14,556 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-20 05:41:14,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-20 05:41:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-20 05:41:14,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:14,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369903070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:14,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:14,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2021-11-20 05:41:14,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497261462] [2021-11-20 05:41:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:14,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:14,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:14,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:14,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-20 05:41:14,595 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 125 [2021-11-20 05:41:14,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 588 flow. Second operand has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:14,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:14,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 125 [2021-11-20 05:41:14,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:15,620 INFO L129 PetriNetUnfolder]: 1029/3340 cut-off events. [2021-11-20 05:41:15,620 INFO L130 PetriNetUnfolder]: For 889/905 co-relation queries the response was YES. [2021-11-20 05:41:15,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6511 conditions, 3340 events. 1029/3340 cut-off events. For 889/905 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 24226 event pairs, 375 based on Foata normal form. 0/3095 useless extension candidates. Maximal degree in co-relation 6493. Up to 1547 conditions per place. [2021-11-20 05:41:15,657 INFO L132 encePairwiseOnDemand]: 110/125 looper letters, 144 selfloop transitions, 46 changer transitions 0/289 dead transitions. [2021-11-20 05:41:15,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 289 transitions, 1382 flow [2021-11-20 05:41:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:41:15,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:41:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 620 transitions. [2021-11-20 05:41:15,660 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2021-11-20 05:41:15,660 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 620 transitions. [2021-11-20 05:41:15,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 620 transitions. [2021-11-20 05:41:15,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:15,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 620 transitions. [2021-11-20 05:41:15,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.33333333333333) internal successors, (620), 6 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:15,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:15,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:15,665 INFO L186 Difference]: Start difference. First operand has 171 places, 163 transitions, 588 flow. Second operand 6 states and 620 transitions. [2021-11-20 05:41:15,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 289 transitions, 1382 flow [2021-11-20 05:41:15,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 289 transitions, 1358 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-11-20 05:41:15,714 INFO L242 Difference]: Finished difference. Result has 175 places, 208 transitions, 918 flow [2021-11-20 05:41:15,714 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=175, PETRI_TRANSITIONS=208} [2021-11-20 05:41:15,715 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 53 predicate places. [2021-11-20 05:41:15,715 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 208 transitions, 918 flow [2021-11-20 05:41:15,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:15,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:15,716 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:15,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:15,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 05:41:15,916 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:15,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1158747276, now seen corresponding path program 1 times [2021-11-20 05:41:15,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:15,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199670525] [2021-11-20 05:41:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:15,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:16,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:16,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199670525] [2021-11-20 05:41:16,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199670525] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:16,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026571479] [2021-11-20 05:41:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:16,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:16,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:16,164 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:16,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:41:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:16,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 05:41:16,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:16,449 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:16,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:41:16,718 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:41:16,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026571479] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:41:16,719 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 05:41:16,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2021-11-20 05:41:16,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792114557] [2021-11-20 05:41:16,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 05:41:16,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 05:41:16,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:16,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 05:41:16,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2021-11-20 05:41:16,726 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 125 [2021-11-20 05:41:16,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 208 transitions, 918 flow. Second operand has 23 states, 23 states have (on average 115.43478260869566) internal successors, (2655), 23 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:16,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:16,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 125 [2021-11-20 05:41:16,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:17,288 INFO L129 PetriNetUnfolder]: 197/1378 cut-off events. [2021-11-20 05:41:17,288 INFO L130 PetriNetUnfolder]: For 572/604 co-relation queries the response was YES. [2021-11-20 05:41:17,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 1378 events. 197/1378 cut-off events. For 572/604 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 9348 event pairs, 17 based on Foata normal form. 7/1305 useless extension candidates. Maximal degree in co-relation 2531. Up to 189 conditions per place. [2021-11-20 05:41:17,304 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 25 selfloop transitions, 30 changer transitions 0/234 dead transitions. [2021-11-20 05:41:17,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 234 transitions, 1168 flow [2021-11-20 05:41:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-20 05:41:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-11-20 05:41:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3448 transitions. [2021-11-20 05:41:17,316 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9194666666666667 [2021-11-20 05:41:17,316 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3448 transitions. [2021-11-20 05:41:17,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3448 transitions. [2021-11-20 05:41:17,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:17,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3448 transitions. [2021-11-20 05:41:17,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 114.93333333333334) internal successors, (3448), 30 states have internal predecessors, (3448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:17,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 125.0) internal successors, (3875), 31 states have internal predecessors, (3875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:17,342 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 125.0) internal successors, (3875), 31 states have internal predecessors, (3875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:17,342 INFO L186 Difference]: Start difference. First operand has 175 places, 208 transitions, 918 flow. Second operand 30 states and 3448 transitions. [2021-11-20 05:41:17,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 234 transitions, 1168 flow [2021-11-20 05:41:17,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 234 transitions, 1168 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 05:41:17,359 INFO L242 Difference]: Finished difference. Result has 208 places, 218 transitions, 1070 flow [2021-11-20 05:41:17,360 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1070, PETRI_PLACES=208, PETRI_TRANSITIONS=218} [2021-11-20 05:41:17,360 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 86 predicate places. [2021-11-20 05:41:17,360 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 218 transitions, 1070 flow [2021-11-20 05:41:17,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 115.43478260869566) internal successors, (2655), 23 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:17,362 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:17,362 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:17,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:17,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:17,563 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:17,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1991683229, now seen corresponding path program 2 times [2021-11-20 05:41:17,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:17,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775624178] [2021-11-20 05:41:17,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:17,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:17,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775624178] [2021-11-20 05:41:17,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775624178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:17,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:17,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:41:17,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293850136] [2021-11-20 05:41:17,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:17,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:17,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:17,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:17,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:17,762 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 125 [2021-11-20 05:41:17,763 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 218 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:17,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:17,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 125 [2021-11-20 05:41:17,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:18,785 INFO L129 PetriNetUnfolder]: 1152/3763 cut-off events. [2021-11-20 05:41:18,786 INFO L130 PetriNetUnfolder]: For 2306/2361 co-relation queries the response was YES. [2021-11-20 05:41:18,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8780 conditions, 3763 events. 1152/3763 cut-off events. For 2306/2361 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 28080 event pairs, 414 based on Foata normal form. 6/3542 useless extension candidates. Maximal degree in co-relation 8753. Up to 2043 conditions per place. [2021-11-20 05:41:18,835 INFO L132 encePairwiseOnDemand]: 110/125 looper letters, 118 selfloop transitions, 57 changer transitions 0/282 dead transitions. [2021-11-20 05:41:18,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 282 transitions, 1708 flow [2021-11-20 05:41:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:41:18,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:41:18,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2021-11-20 05:41:18,838 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.748 [2021-11-20 05:41:18,839 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2021-11-20 05:41:18,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2021-11-20 05:41:18,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:18,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2021-11-20 05:41:18,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:18,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:18,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:18,844 INFO L186 Difference]: Start difference. First operand has 208 places, 218 transitions, 1070 flow. Second operand 6 states and 561 transitions. [2021-11-20 05:41:18,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 282 transitions, 1708 flow [2021-11-20 05:41:18,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 282 transitions, 1662 flow, removed 5 selfloop flow, removed 18 redundant places. [2021-11-20 05:41:18,867 INFO L242 Difference]: Finished difference. Result has 200 places, 265 transitions, 1522 flow [2021-11-20 05:41:18,868 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1522, PETRI_PLACES=200, PETRI_TRANSITIONS=265} [2021-11-20 05:41:18,869 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 78 predicate places. [2021-11-20 05:41:18,869 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 265 transitions, 1522 flow [2021-11-20 05:41:18,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:18,869 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:18,869 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:18,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:41:18,870 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:18,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:18,870 INFO L85 PathProgramCache]: Analyzing trace with hash 698436477, now seen corresponding path program 1 times [2021-11-20 05:41:18,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:18,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091893815] [2021-11-20 05:41:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:18,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:18,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:18,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091893815] [2021-11-20 05:41:18,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091893815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:18,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:41:18,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:41:18,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155723802] [2021-11-20 05:41:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:18,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:41:18,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:41:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:41:18,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 125 [2021-11-20 05:41:18,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 265 transitions, 1522 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:18,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:18,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 125 [2021-11-20 05:41:18,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:20,523 INFO L129 PetriNetUnfolder]: 1579/4835 cut-off events. [2021-11-20 05:41:20,524 INFO L130 PetriNetUnfolder]: For 4919/4991 co-relation queries the response was YES. [2021-11-20 05:41:20,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12881 conditions, 4835 events. 1579/4835 cut-off events. For 4919/4991 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 37631 event pairs, 461 based on Foata normal form. 4/4624 useless extension candidates. Maximal degree in co-relation 12849. Up to 2738 conditions per place. [2021-11-20 05:41:20,597 INFO L132 encePairwiseOnDemand]: 102/125 looper letters, 169 selfloop transitions, 103 changer transitions 4/384 dead transitions. [2021-11-20 05:41:20,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 384 transitions, 2628 flow [2021-11-20 05:41:20,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 05:41:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 05:41:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 609 transitions. [2021-11-20 05:41:20,600 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.812 [2021-11-20 05:41:20,601 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 609 transitions. [2021-11-20 05:41:20,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 609 transitions. [2021-11-20 05:41:20,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:20,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 609 transitions. [2021-11-20 05:41:20,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:20,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:20,606 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:20,606 INFO L186 Difference]: Start difference. First operand has 200 places, 265 transitions, 1522 flow. Second operand 6 states and 609 transitions. [2021-11-20 05:41:20,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 384 transitions, 2628 flow [2021-11-20 05:41:20,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 384 transitions, 2564 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-11-20 05:41:20,642 INFO L242 Difference]: Finished difference. Result has 210 places, 350 transitions, 2374 flow [2021-11-20 05:41:20,643 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2374, PETRI_PLACES=210, PETRI_TRANSITIONS=350} [2021-11-20 05:41:20,643 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 88 predicate places. [2021-11-20 05:41:20,644 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 350 transitions, 2374 flow [2021-11-20 05:41:20,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:20,644 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:20,644 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:20,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 05:41:20,645 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:20,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1898019225, now seen corresponding path program 1 times [2021-11-20 05:41:20,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:20,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101257887] [2021-11-20 05:41:20,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:20,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:41:21,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:21,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101257887] [2021-11-20 05:41:21,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101257887] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:21,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657884177] [2021-11-20 05:41:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:21,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:21,088 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:21,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:41:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:21,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:41:21,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:21,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:41:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:21,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:21,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657884177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:21,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:21,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:41:21,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868757553] [2021-11-20 05:41:21,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:21,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:41:21,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:21,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:41:21,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:41:21,680 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2021-11-20 05:41:21,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 350 transitions, 2374 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:21,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:21,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2021-11-20 05:41:21,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:24,845 INFO L129 PetriNetUnfolder]: 3817/9923 cut-off events. [2021-11-20 05:41:24,845 INFO L130 PetriNetUnfolder]: For 15862/15862 co-relation queries the response was YES. [2021-11-20 05:41:24,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30501 conditions, 9923 events. 3817/9923 cut-off events. For 15862/15862 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 77882 event pairs, 957 based on Foata normal form. 13/9644 useless extension candidates. Maximal degree in co-relation 30464. Up to 3275 conditions per place. [2021-11-20 05:41:24,967 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 843 selfloop transitions, 16 changer transitions 0/943 dead transitions. [2021-11-20 05:41:24,967 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 943 transitions, 8356 flow [2021-11-20 05:41:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:41:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:41:24,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 951 transitions. [2021-11-20 05:41:24,972 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.634 [2021-11-20 05:41:24,972 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 951 transitions. [2021-11-20 05:41:24,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 951 transitions. [2021-11-20 05:41:24,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:24,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 951 transitions. [2021-11-20 05:41:24,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.25) internal successors, (951), 12 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:24,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:24,981 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:24,981 INFO L186 Difference]: Start difference. First operand has 210 places, 350 transitions, 2374 flow. Second operand 12 states and 951 transitions. [2021-11-20 05:41:24,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 943 transitions, 8356 flow [2021-11-20 05:41:25,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 943 transitions, 8046 flow, removed 155 selfloop flow, removed 0 redundant places. [2021-11-20 05:41:25,085 INFO L242 Difference]: Finished difference. Result has 228 places, 364 transitions, 2368 flow [2021-11-20 05:41:25,086 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=2260, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2368, PETRI_PLACES=228, PETRI_TRANSITIONS=364} [2021-11-20 05:41:25,087 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 106 predicate places. [2021-11-20 05:41:25,087 INFO L470 AbstractCegarLoop]: Abstraction has has 228 places, 364 transitions, 2368 flow [2021-11-20 05:41:25,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:25,088 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:25,088 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:25,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:25,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:25,315 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash -342455821, now seen corresponding path program 2 times [2021-11-20 05:41:25,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:25,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895001330] [2021-11-20 05:41:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:25,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:41:25,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:25,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895001330] [2021-11-20 05:41:25,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895001330] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:25,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507332711] [2021-11-20 05:41:25,727 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:41:25,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:25,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:25,728 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:25,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:41:25,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:41:25,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:41:25,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:41:25,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:26,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:41:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:26,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:26,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507332711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:26,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:26,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:41:26,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784626443] [2021-11-20 05:41:26,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:26,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:41:26,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:26,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:41:26,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:41:26,330 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2021-11-20 05:41:26,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 364 transitions, 2368 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:26,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:26,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2021-11-20 05:41:26,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:31,926 INFO L129 PetriNetUnfolder]: 8253/21442 cut-off events. [2021-11-20 05:41:31,927 INFO L130 PetriNetUnfolder]: For 35024/35033 co-relation queries the response was YES. [2021-11-20 05:41:32,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67769 conditions, 21442 events. 8253/21442 cut-off events. For 35024/35033 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 193827 event pairs, 2113 based on Foata normal form. 91/21088 useless extension candidates. Maximal degree in co-relation 67724. Up to 7441 conditions per place. [2021-11-20 05:41:32,242 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 1007 selfloop transitions, 21 changer transitions 4/1116 dead transitions. [2021-11-20 05:41:32,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 1116 transitions, 9431 flow [2021-11-20 05:41:32,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 05:41:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-11-20 05:41:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1015 transitions. [2021-11-20 05:41:32,248 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6766666666666666 [2021-11-20 05:41:32,248 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1015 transitions. [2021-11-20 05:41:32,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1015 transitions. [2021-11-20 05:41:32,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:32,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1015 transitions. [2021-11-20 05:41:32,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 84.58333333333333) internal successors, (1015), 12 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:32,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:32,259 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 125.0) internal successors, (1625), 13 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:32,259 INFO L186 Difference]: Start difference. First operand has 228 places, 364 transitions, 2368 flow. Second operand 12 states and 1015 transitions. [2021-11-20 05:41:32,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 1116 transitions, 9431 flow [2021-11-20 05:41:32,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 1116 transitions, 9416 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 05:41:32,428 INFO L242 Difference]: Finished difference. Result has 245 places, 381 transitions, 2544 flow [2021-11-20 05:41:32,429 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=2365, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2544, PETRI_PLACES=245, PETRI_TRANSITIONS=381} [2021-11-20 05:41:32,430 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 123 predicate places. [2021-11-20 05:41:32,430 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 381 transitions, 2544 flow [2021-11-20 05:41:32,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:32,431 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:32,431 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:32,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:32,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:32,648 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:32,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2023248087, now seen corresponding path program 1 times [2021-11-20 05:41:32,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:32,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117491408] [2021-11-20 05:41:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:32,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:41:33,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:33,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117491408] [2021-11-20 05:41:33,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117491408] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:33,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477708484] [2021-11-20 05:41:33,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:33,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:33,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:33,071 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:33,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:41:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:33,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:41:33,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:33,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:41:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:33,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:33,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477708484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:33,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:33,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:41:33,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303612798] [2021-11-20 05:41:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:33,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:41:33,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:33,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:41:33,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:41:33,668 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2021-11-20 05:41:33,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 381 transitions, 2544 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:33,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:33,670 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2021-11-20 05:41:33,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:40,782 INFO L129 PetriNetUnfolder]: 9911/25913 cut-off events. [2021-11-20 05:41:40,783 INFO L130 PetriNetUnfolder]: For 49367/49379 co-relation queries the response was YES. [2021-11-20 05:41:41,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85147 conditions, 25913 events. 9911/25913 cut-off events. For 49367/49379 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 241931 event pairs, 2750 based on Foata normal form. 18/25352 useless extension candidates. Maximal degree in co-relation 85094. Up to 8064 conditions per place. [2021-11-20 05:41:41,233 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 1065 selfloop transitions, 29 changer transitions 0/1178 dead transitions. [2021-11-20 05:41:41,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 1178 transitions, 10342 flow [2021-11-20 05:41:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:41:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:41:41,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1140 transitions. [2021-11-20 05:41:41,236 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6514285714285715 [2021-11-20 05:41:41,237 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1140 transitions. [2021-11-20 05:41:41,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1140 transitions. [2021-11-20 05:41:41,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:41,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1140 transitions. [2021-11-20 05:41:41,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.42857142857143) internal successors, (1140), 14 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:41,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:41,246 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:41,246 INFO L186 Difference]: Start difference. First operand has 245 places, 381 transitions, 2544 flow. Second operand 14 states and 1140 transitions. [2021-11-20 05:41:41,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 1178 transitions, 10342 flow [2021-11-20 05:41:41,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 1178 transitions, 10311 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-11-20 05:41:41,672 INFO L242 Difference]: Finished difference. Result has 266 places, 399 transitions, 2788 flow [2021-11-20 05:41:41,673 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=2533, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2788, PETRI_PLACES=266, PETRI_TRANSITIONS=399} [2021-11-20 05:41:41,674 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 144 predicate places. [2021-11-20 05:41:41,674 INFO L470 AbstractCegarLoop]: Abstraction has has 266 places, 399 transitions, 2788 flow [2021-11-20 05:41:41,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:41,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:41,684 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:41,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:41:41,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:41,899 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:41,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1000997221, now seen corresponding path program 3 times [2021-11-20 05:41:41,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:41,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419739726] [2021-11-20 05:41:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:41,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:41:42,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:42,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419739726] [2021-11-20 05:41:42,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419739726] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:42,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894372850] [2021-11-20 05:41:42,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:41:42,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:42,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:42,195 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:42,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-20 05:41:42,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 05:41:42,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:41:42,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:41:42,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:42,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:41:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:42,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:42,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894372850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:42,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:42,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:41:42,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357945591] [2021-11-20 05:41:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:42,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:41:42,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:41:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:41:42,859 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2021-11-20 05:41:42,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 399 transitions, 2788 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:42,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:42,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2021-11-20 05:41:42,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:41:50,422 INFO L129 PetriNetUnfolder]: 10845/28116 cut-off events. [2021-11-20 05:41:50,422 INFO L130 PetriNetUnfolder]: For 62692/62727 co-relation queries the response was YES. [2021-11-20 05:41:50,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96074 conditions, 28116 events. 10845/28116 cut-off events. For 62692/62727 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 265973 event pairs, 3115 based on Foata normal form. 25/27555 useless extension candidates. Maximal degree in co-relation 96012. Up to 10176 conditions per place. [2021-11-20 05:41:50,845 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 1069 selfloop transitions, 38 changer transitions 4/1195 dead transitions. [2021-11-20 05:41:50,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 1195 transitions, 10702 flow [2021-11-20 05:41:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:41:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:41:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1177 transitions. [2021-11-20 05:41:50,849 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6725714285714286 [2021-11-20 05:41:50,849 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1177 transitions. [2021-11-20 05:41:50,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1177 transitions. [2021-11-20 05:41:50,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:41:50,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1177 transitions. [2021-11-20 05:41:50,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 84.07142857142857) internal successors, (1177), 14 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:50,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:50,856 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:50,856 INFO L186 Difference]: Start difference. First operand has 266 places, 399 transitions, 2788 flow. Second operand 14 states and 1177 transitions. [2021-11-20 05:41:50,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 1195 transitions, 10702 flow [2021-11-20 05:41:51,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 1195 transitions, 10589 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-11-20 05:41:51,111 INFO L242 Difference]: Finished difference. Result has 282 places, 417 transitions, 3070 flow [2021-11-20 05:41:51,111 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=2756, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3070, PETRI_PLACES=282, PETRI_TRANSITIONS=417} [2021-11-20 05:41:51,112 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 160 predicate places. [2021-11-20 05:41:51,112 INFO L470 AbstractCegarLoop]: Abstraction has has 282 places, 417 transitions, 3070 flow [2021-11-20 05:41:51,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:51,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:41:51,113 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:41:51,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-20 05:41:51,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-20 05:41:51,313 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:41:51,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:41:51,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1959728215, now seen corresponding path program 2 times [2021-11-20 05:41:51,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:41:51,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808946119] [2021-11-20 05:41:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:41:51,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:41:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:41:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:41:51,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:41:51,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808946119] [2021-11-20 05:41:51,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808946119] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:41:51,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179512314] [2021-11-20 05:41:51,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:41:51,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:41:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:41:51,620 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:41:51,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-20 05:41:51,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-20 05:41:51,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:41:51,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:41:51,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:41:52,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:41:52,177 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:41:52,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:41:52,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179512314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:41:52,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:41:52,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:41:52,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567607273] [2021-11-20 05:41:52,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:41:52,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:41:52,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:41:52,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:41:52,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:41:52,180 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2021-11-20 05:41:52,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 417 transitions, 3070 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:41:52,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:41:52,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2021-11-20 05:41:52,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:42:01,217 INFO L129 PetriNetUnfolder]: 12532/32754 cut-off events. [2021-11-20 05:42:01,217 INFO L130 PetriNetUnfolder]: For 88124/88175 co-relation queries the response was YES. [2021-11-20 05:42:01,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114191 conditions, 32754 events. 12532/32754 cut-off events. For 88124/88175 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 319994 event pairs, 3515 based on Foata normal form. 33/32072 useless extension candidates. Maximal degree in co-relation 114120. Up to 8380 conditions per place. [2021-11-20 05:42:01,769 INFO L132 encePairwiseOnDemand]: 111/125 looper letters, 1297 selfloop transitions, 41 changer transitions 0/1422 dead transitions. [2021-11-20 05:42:01,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1422 transitions, 13245 flow [2021-11-20 05:42:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:42:01,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:42:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1172 transitions. [2021-11-20 05:42:01,773 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6697142857142857 [2021-11-20 05:42:01,773 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1172 transitions. [2021-11-20 05:42:01,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1172 transitions. [2021-11-20 05:42:01,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:42:01,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1172 transitions. [2021-11-20 05:42:01,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 83.71428571428571) internal successors, (1172), 14 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:01,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:01,780 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 125.0) internal successors, (1875), 15 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:01,781 INFO L186 Difference]: Start difference. First operand has 282 places, 417 transitions, 3070 flow. Second operand 14 states and 1172 transitions. [2021-11-20 05:42:01,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1422 transitions, 13245 flow [2021-11-20 05:42:02,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1422 transitions, 13121 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-11-20 05:42:02,135 INFO L242 Difference]: Finished difference. Result has 296 places, 438 transitions, 3445 flow [2021-11-20 05:42:02,135 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=3013, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3445, PETRI_PLACES=296, PETRI_TRANSITIONS=438} [2021-11-20 05:42:02,136 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 174 predicate places. [2021-11-20 05:42:02,136 INFO L470 AbstractCegarLoop]: Abstraction has has 296 places, 438 transitions, 3445 flow [2021-11-20 05:42:02,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:02,137 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:42:02,137 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:42:02,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-20 05:42:02,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-20 05:42:02,363 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:42:02,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1912330041, now seen corresponding path program 4 times [2021-11-20 05:42:02,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:02,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76009192] [2021-11-20 05:42:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:02,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:42:02,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:02,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76009192] [2021-11-20 05:42:02,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76009192] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:42:02,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526150189] [2021-11-20 05:42:02,656 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 05:42:02,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:42:02,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:42:02,658 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:42:02,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-20 05:42:02,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 05:42:02,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:42:02,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-20 05:42:02,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:42:02,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:42:03,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:42:03,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 05:42:03,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-20 05:42:03,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-20 05:42:03,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 05:42:03,353 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 05:42:03,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 19 treesize of output 11 [2021-11-20 05:42:03,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-20 05:42:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 05:42:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-20 05:42:03,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 05:42:03,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 90 [2021-11-20 05:42:04,293 INFO L354 Elim1Store]: treesize reduction 516, result has 10.7 percent of original size [2021-11-20 05:42:04,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 84 treesize of output 97 [2021-11-20 05:42:04,384 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:42:04,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:42:04,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526150189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:04,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:42:04,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [11] total 28 [2021-11-20 05:42:04,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374054297] [2021-11-20 05:42:04,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:04,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-20 05:42:04,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-20 05:42:04,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2021-11-20 05:42:04,387 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 125 [2021-11-20 05:42:04,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 438 transitions, 3445 flow. Second operand has 19 states, 19 states have (on average 55.68421052631579) internal successors, (1058), 19 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:04,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:42:04,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 125 [2021-11-20 05:42:04,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:42:15,427 INFO L129 PetriNetUnfolder]: 13522/35086 cut-off events. [2021-11-20 05:42:15,427 INFO L130 PetriNetUnfolder]: For 104292/104372 co-relation queries the response was YES. [2021-11-20 05:42:15,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125335 conditions, 35086 events. 13522/35086 cut-off events. For 104292/104372 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 347488 event pairs, 3990 based on Foata normal form. 26/34391 useless extension candidates. Maximal degree in co-relation 125257. Up to 13977 conditions per place. [2021-11-20 05:42:16,005 INFO L132 encePairwiseOnDemand]: 97/125 looper letters, 1230 selfloop transitions, 114 changer transitions 2/1431 dead transitions. [2021-11-20 05:42:16,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1431 transitions, 13809 flow [2021-11-20 05:42:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 05:42:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-11-20 05:42:16,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1766 transitions. [2021-11-20 05:42:16,010 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6142608695652174 [2021-11-20 05:42:16,011 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 1766 transitions. [2021-11-20 05:42:16,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 1766 transitions. [2021-11-20 05:42:16,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:42:16,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 1766 transitions. [2021-11-20 05:42:16,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 76.78260869565217) internal successors, (1766), 23 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:16,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 125.0) internal successors, (3000), 24 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:16,021 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 125.0) internal successors, (3000), 24 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:16,022 INFO L186 Difference]: Start difference. First operand has 296 places, 438 transitions, 3445 flow. Second operand 23 states and 1766 transitions. [2021-11-20 05:42:16,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1431 transitions, 13809 flow [2021-11-20 05:42:16,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 1431 transitions, 13626 flow, removed 60 selfloop flow, removed 5 redundant places. [2021-11-20 05:42:16,788 INFO L242 Difference]: Finished difference. Result has 330 places, 523 transitions, 4923 flow [2021-11-20 05:42:16,788 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=3324, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4923, PETRI_PLACES=330, PETRI_TRANSITIONS=523} [2021-11-20 05:42:16,790 INFO L334 CegarLoopForPetriNet]: 122 programPoint places, 208 predicate places. [2021-11-20 05:42:16,790 INFO L470 AbstractCegarLoop]: Abstraction has has 330 places, 523 transitions, 4923 flow [2021-11-20 05:42:16,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 55.68421052631579) internal successors, (1058), 19 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:16,791 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:42:16,791 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:42:16,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-20 05:42:17,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-20 05:42:17,019 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2021-11-20 05:42:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:42:17,020 INFO L85 PathProgramCache]: Analyzing trace with hash -759882019, now seen corresponding path program 3 times [2021-11-20 05:42:17,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:42:17,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584843627] [2021-11-20 05:42:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:42:17,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:42:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:42:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-20 05:42:17,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:42:17,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584843627] [2021-11-20 05:42:17,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584843627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 05:42:17,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444076940] [2021-11-20 05:42:17,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:42:17,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:42:17,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:42:17,319 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:42:17,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf8453d-c609-4a7a-991b-ef4b3d8f15e6/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-20 05:42:17,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-20 05:42:17,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:42:17,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-20 05:42:17,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:42:17,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 05:42:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2021-11-20 05:42:17,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:42:17,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444076940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:42:17,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 05:42:17,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2021-11-20 05:42:17,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369220158] [2021-11-20 05:42:17,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:42:17,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 05:42:17,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:42:17,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 05:42:17,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-20 05:42:17,907 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 125 [2021-11-20 05:42:17,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 523 transitions, 4923 flow. Second operand has 10 states, 10 states have (on average 56.3) internal successors, (563), 10 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:42:17,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:42:17,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 125 [2021-11-20 05:42:17,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand