./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:21:48,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:21:48,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:21:48,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:21:48,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:21:48,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:21:48,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:21:48,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:21:48,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:21:48,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:21:48,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:21:48,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:21:48,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:21:48,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:21:48,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:21:48,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:21:48,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:21:48,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:21:48,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:21:48,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:21:48,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:21:48,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:21:48,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:21:48,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:21:48,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:21:48,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:21:48,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:21:48,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:21:48,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:21:48,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:21:48,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:21:48,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:21:48,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:21:48,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:21:48,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:21:48,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:21:48,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:21:48,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:21:48,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:21:48,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:21:48,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:21:48,252 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-12 23:21:48,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:21:48,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:21:48,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:21:48,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:21:48,303 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:21:48,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:21:48,304 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:21:48,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:21:48,304 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:21:48,304 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:21:48,306 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:21:48,306 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:21:48,306 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:21:48,306 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:21:48,307 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:21:48,307 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:21:48,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:21:48,308 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:21:48,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:21:48,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:21:48,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:21:48,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:21:48,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:21:48,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:21:48,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:21:48,309 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 23:21:48,310 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:21:48,310 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:21:48,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:21:48,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:21:48,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:21:48,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:21:48,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:21:48,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:21:48,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:21:48,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:21:48,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:21:48,313 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:21:48,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:21:48,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:21:48,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:21:48,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:21:48,314 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 [2021-11-12 23:21:48,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:21:48,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:21:48,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:21:48,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:21:48,614 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:21:48,615 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2021-11-12 23:21:48,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/2fda1b670/191335731a354ee999def19f022ab01b/FLAG26e8b61fd [2021-11-12 23:21:49,299 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:21:49,300 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2021-11-12 23:21:49,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/2fda1b670/191335731a354ee999def19f022ab01b/FLAG26e8b61fd [2021-11-12 23:21:49,729 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/2fda1b670/191335731a354ee999def19f022ab01b [2021-11-12 23:21:49,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:21:49,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:21:49,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:21:49,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:21:49,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:21:49,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:21:49" (1/1) ... [2021-11-12 23:21:49,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ba9d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:49, skipping insertion in model container [2021-11-12 23:21:49,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:21:49" (1/1) ... [2021-11-12 23:21:49,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:21:49,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:21:50,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:21:50,287 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:21:50,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:21:50,417 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:21:50,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50 WrapperNode [2021-11-12 23:21:50,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:21:50,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:21:50,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:21:50,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:21:50,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:21:50,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:21:50,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:21:50,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:21:50,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:21:50,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:21:50,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:21:50,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:21:50,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (1/1) ... [2021-11-12 23:21:50,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:21:50,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:21:50,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:21:50,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:21:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:21:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:21:50,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:21:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:21:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 23:21:50,656 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 23:21:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:21:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:21:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:21:50,658 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:21:51,066 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:21:51,066 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:21:51,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:21:51 BoogieIcfgContainer [2021-11-12 23:21:51,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:21:51,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:21:51,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:21:51,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:21:51,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:21:49" (1/3) ... [2021-11-12 23:21:51,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64063199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:21:51, skipping insertion in model container [2021-11-12 23:21:51,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:21:50" (2/3) ... [2021-11-12 23:21:51,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64063199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:21:51, skipping insertion in model container [2021-11-12 23:21:51,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:21:51" (3/3) ... [2021-11-12 23:21:51,097 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2021-11-12 23:21:51,103 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:21:51,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:21:51,105 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-12 23:21:51,105 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:21:51,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,144 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,144 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,144 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,145 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,145 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,145 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,146 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,153 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,154 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,155 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,156 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,159 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,160 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,166 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,170 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,170 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,170 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,170 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,171 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,174 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,174 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,174 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,175 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:21:51,185 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-12 23:21:51,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:21:51,236 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=FINITE_AUTOMATA, 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 [2021-11-12 23:21:51,236 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-12 23:21:51,252 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:21:51,273 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 153 flow [2021-11-12 23:21:51,282 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 153 flow [2021-11-12 23:21:51,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 153 flow [2021-11-12 23:21:51,349 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-11-12 23:21:51,349 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-12 23:21:51,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2021-11-12 23:21:51,356 INFO L116 LiptonReduction]: Number of co-enabled transitions 1188 [2021-11-12 23:21:53,859 INFO L131 LiptonReduction]: Checked pairs total: 5994 [2021-11-12 23:21:53,860 INFO L133 LiptonReduction]: Total number of compositions: 43 [2021-11-12 23:21:53,875 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 31 transitions, 67 flow [2021-11-12 23:21:53,899 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:53,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:53,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:21:53,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:53,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:53,910 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:21:53,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:53,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2083744782, now seen corresponding path program 1 times [2021-11-12 23:21:53,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:53,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121909092] [2021-11-12 23:21:53,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:53,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:54,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:54,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121909092] [2021-11-12 23:21:54,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121909092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:54,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:54,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:21:54,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357360777] [2021-11-12 23:21:54,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:54,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:21:54,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:54,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:21:54,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:54,282 INFO L87 Difference]: Start difference. First operand has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:54,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:54,616 INFO L93 Difference]: Finished difference Result 253 states and 468 transitions. [2021-11-12 23:21:54,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:21:54,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:21:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:54,635 INFO L225 Difference]: With dead ends: 253 [2021-11-12 23:21:54,635 INFO L226 Difference]: Without dead ends: 253 [2021-11-12 23:21:54,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:54,639 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 203.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.60ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 270.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:54,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 16 Invalid, 223 Unknown, 0 Unchecked, 4.60ms Time], IncrementalHoareTripleChecker [22 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 270.64ms Time] [2021-11-12 23:21:54,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-12 23:21:54,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 241. [2021-11-12 23:21:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 234 states have (on average 1.9059829059829059) internal successors, (446), 240 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 446 transitions. [2021-11-12 23:21:54,695 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 446 transitions. Word has length 8 [2021-11-12 23:21:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:54,695 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 446 transitions. [2021-11-12 23:21:54,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 446 transitions. [2021-11-12 23:21:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:21:54,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:54,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:54,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:21:54,697 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:21:54,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:54,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1636704828, now seen corresponding path program 1 times [2021-11-12 23:21:54,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:54,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445168960] [2021-11-12 23:21:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:54,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:54,872 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:54,872 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445168960] [2021-11-12 23:21:54,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445168960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:54,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:54,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:21:54,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002450924] [2021-11-12 23:21:54,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:54,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:21:54,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:54,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:21:54,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:54,876 INFO L87 Difference]: Start difference. First operand 241 states and 446 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:55,128 INFO L93 Difference]: Finished difference Result 269 states and 496 transitions. [2021-11-12 23:21:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:21:55,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:21:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:55,130 INFO L225 Difference]: With dead ends: 269 [2021-11-12 23:21:55,131 INFO L226 Difference]: Without dead ends: 269 [2021-11-12 23:21:55,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:55,132 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.19ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 236.16ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:55,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 207 Unknown, 0 Unchecked, 3.19ms Time], IncrementalHoareTripleChecker [23 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 236.16ms Time] [2021-11-12 23:21:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-12 23:21:55,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 257. [2021-11-12 23:21:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 250 states have (on average 1.896) internal successors, (474), 256 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 474 transitions. [2021-11-12 23:21:55,154 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 474 transitions. Word has length 8 [2021-11-12 23:21:55,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:55,155 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 474 transitions. [2021-11-12 23:21:55,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,155 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 474 transitions. [2021-11-12 23:21:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:21:55,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:55,157 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:55,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:21:55,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:21:55,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:55,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1793836159, now seen corresponding path program 1 times [2021-11-12 23:21:55,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:55,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810899836] [2021-11-12 23:21:55,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:55,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:55,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:55,270 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:55,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810899836] [2021-11-12 23:21:55,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810899836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:55,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:55,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:21:55,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774519458] [2021-11-12 23:21:55,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:55,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:21:55,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:21:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:55,273 INFO L87 Difference]: Start difference. First operand 257 states and 474 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:55,482 INFO L93 Difference]: Finished difference Result 306 states and 567 transitions. [2021-11-12 23:21:55,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:21:55,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 23:21:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:55,486 INFO L225 Difference]: With dead ends: 306 [2021-11-12 23:21:55,486 INFO L226 Difference]: Without dead ends: 294 [2021-11-12 23:21:55,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:55,489 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 151.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.28ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 195.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:55,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 16 Invalid, 222 Unknown, 0 Unchecked, 2.28ms Time], IncrementalHoareTripleChecker [4 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 195.51ms Time] [2021-11-12 23:21:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-12 23:21:55,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-11-12 23:21:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 287 states have (on average 1.89198606271777) internal successors, (543), 293 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 543 transitions. [2021-11-12 23:21:55,510 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 543 transitions. Word has length 14 [2021-11-12 23:21:55,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:55,510 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 543 transitions. [2021-11-12 23:21:55,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,511 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 543 transitions. [2021-11-12 23:21:55,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:21:55,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:55,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:55,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:21:55,513 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:21:55,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:55,513 INFO L85 PathProgramCache]: Analyzing trace with hash 348781960, now seen corresponding path program 1 times [2021-11-12 23:21:55,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:55,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339838050] [2021-11-12 23:21:55,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:55,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:21:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:21:55,619 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:21:55,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339838050] [2021-11-12 23:21:55,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339838050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:21:55,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:21:55,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-12 23:21:55,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261550359] [2021-11-12 23:21:55,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:21:55,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:21:55,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:21:55,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:21:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:55,631 INFO L87 Difference]: Start difference. First operand 294 states and 543 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:21:55,826 INFO L93 Difference]: Finished difference Result 342 states and 632 transitions. [2021-11-12 23:21:55,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:21:55,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 23:21:55,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:21:55,831 INFO L225 Difference]: With dead ends: 342 [2021-11-12 23:21:55,831 INFO L226 Difference]: Without dead ends: 330 [2021-11-12 23:21:55,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:21:55,833 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 182.85ms IncrementalHoareTripleChecker+Time [2021-11-12 23:21:55,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 17 Invalid, 216 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 182.85ms Time] [2021-11-12 23:21:55,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-12 23:21:55,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2021-11-12 23:21:55,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 323 states have (on average 1.8761609907120742) internal successors, (606), 329 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 606 transitions. [2021-11-12 23:21:55,860 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 606 transitions. Word has length 14 [2021-11-12 23:21:55,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:21:55,860 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 606 transitions. [2021-11-12 23:21:55,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:21:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 606 transitions. [2021-11-12 23:21:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:21:55,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:21:55,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:21:55,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:21:55,863 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:21:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:21:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash -429417519, now seen corresponding path program 1 times [2021-11-12 23:21:55,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:21:55,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130516956] [2021-11-12 23:21:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:21:55,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:21:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:21:55,908 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:21:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:21:55,963 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:21:55,963 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:21:55,964 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2021-11-12 23:21:55,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2021-11-12 23:21:55,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2021-11-12 23:21:55,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2021-11-12 23:21:55,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2021-11-12 23:21:55,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2021-11-12 23:21:55,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2021-11-12 23:21:55,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:21:55,970 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 23:21:55,976 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:21:55,976 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:21:55,993 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:21:55,996 INFO L158 Benchmark]: Toolchain (without parser) took 6262.63ms. Allocated memory was 83.9MB in the beginning and 130.0MB in the end (delta: 46.1MB). Free memory was 47.7MB in the beginning and 91.7MB in the end (delta: -44.0MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-11-12 23:21:55,996 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:21:55,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.80ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 47.5MB in the beginning and 65.1MB in the end (delta: -17.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:21:55,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.43ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 62.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:21:55,998 INFO L158 Benchmark]: Boogie Preprocessor took 62.69ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:21:55,998 INFO L158 Benchmark]: RCFGBuilder took 499.73ms. Allocated memory is still 107.0MB. Free memory was 60.9MB in the beginning and 49.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:21:55,999 INFO L158 Benchmark]: TraceAbstraction took 4903.31ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 83.6MB in the beginning and 91.7MB in the end (delta: -8.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-12 23:21:56,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory was 61.6MB in the beginning and 61.6MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 677.80ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 47.5MB in the beginning and 65.1MB in the end (delta: -17.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.43ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 62.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.69ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 60.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 499.73ms. Allocated memory is still 107.0MB. Free memory was 60.9MB in the beginning and 49.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4903.31ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 83.6MB in the beginning and 91.7MB in the end (delta: -8.1MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 77 PlacesBefore, 35 PlacesAfterwards, 74 TransitionsBefore, 31 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 5994 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1634, positive: 1287, positive conditional: 0, positive unconditional: 1287, negative: 347, negative conditional: 0, negative unconditional: 347, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 722, positive: 627, positive conditional: 0, positive unconditional: 627, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 722, positive: 578, positive conditional: 0, positive unconditional: 578, negative: 144, negative conditional: 0, negative unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 144, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 450, positive: 162, positive conditional: 0, positive unconditional: 162, negative: 288, negative conditional: 0, negative unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1634, positive: 660, positive conditional: 0, positive unconditional: 660, negative: 252, negative conditional: 0, negative unconditional: 252, unknown: 722, unknown conditional: 0, unknown unconditional: 722] , Statistics on independence cache: Total cache size (in pairs): 193, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 69, Negative conditional cache size: 0, Negative unconditional cache size: 69 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 23:21:56,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:21:58,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:21:58,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:21:58,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:21:58,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:21:58,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:21:58,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:21:58,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:21:58,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:21:58,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:21:58,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:21:58,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:21:58,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:21:58,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:21:58,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:21:58,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:21:58,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:21:58,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:21:58,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:21:58,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:21:58,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:21:58,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:21:58,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:21:58,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:21:58,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:21:58,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:21:58,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:21:58,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:21:58,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:21:58,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:21:58,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:21:58,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:21:58,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:21:58,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:21:58,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:21:58,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:21:58,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:21:58,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:21:58,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:21:58,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:21:58,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:21:58,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2021-11-12 23:21:58,640 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:21:58,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:21:58,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:21:58,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:21:58,642 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:21:58,642 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:21:58,643 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:21:58,643 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:21:58,643 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:21:58,644 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:21:58,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:21:58,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:21:58,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-12 23:21:58,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:21:58,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:21:58,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:21:58,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:21:58,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:21:58,650 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-12 23:21:58,651 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:21:58,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:21:58,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:21:58,651 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:21:58,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:21:58,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:21:58,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:21:58,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:21:58,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:21:58,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:21:58,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:21:58,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:21:58,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:21:58,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:21:58,657 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:21:58,658 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:21:58,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:21:58,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:21:58,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:21:58,659 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a138099a172ffd618c200f98f002dd42af622d442f084454d63ab9b76b3cf563 [2021-11-12 23:21:59,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:21:59,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:21:59,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:21:59,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:21:59,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:21:59,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2021-11-12 23:21:59,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/6abcaf977/7208f3f3118d42168f7bc5f91701e558/FLAG57b18dcb4 [2021-11-12 23:21:59,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:21:59,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/sv-benchmarks/c/goblint-regression/05-lval_ls_15-fldunknown_access.i [2021-11-12 23:21:59,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/6abcaf977/7208f3f3118d42168f7bc5f91701e558/FLAG57b18dcb4 [2021-11-12 23:22:00,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/data/6abcaf977/7208f3f3118d42168f7bc5f91701e558 [2021-11-12 23:22:00,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:22:00,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:22:00,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:22:00,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:22:00,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:22:00,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:00,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca9f0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00, skipping insertion in model container [2021-11-12 23:22:00,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:00,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:22:00,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:22:00,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:22:00,758 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:22:00,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:22:00,929 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:22:00,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00 WrapperNode [2021-11-12 23:22:00,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:22:00,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:22:00,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:22:00,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:22:00,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:00,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:22:01,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:22:01,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:22:01,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:22:01,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:22:01,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:22:01,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:22:01,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:22:01,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (1/1) ... [2021-11-12 23:22:01,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:22:01,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:22:01,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:22:01,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:22:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:22:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:22:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:22:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:22:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:22:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-12 23:22:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-12 23:22:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:22:01,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:22:01,200 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:22:01,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:22:01,632 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:22:01,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:01 BoogieIcfgContainer [2021-11-12 23:22:01,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:22:01,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:22:01,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:22:01,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:22:01,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:22:00" (1/3) ... [2021-11-12 23:22:01,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792a25fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:22:01, skipping insertion in model container [2021-11-12 23:22:01,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:22:00" (2/3) ... [2021-11-12 23:22:01,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792a25fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:22:01, skipping insertion in model container [2021-11-12 23:22:01,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:22:01" (3/3) ... [2021-11-12 23:22:01,644 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2021-11-12 23:22:01,650 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:22:01,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:22:01,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-12 23:22:01,651 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:22:01,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,682 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,683 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,683 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,683 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,684 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,684 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,684 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,685 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,689 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,690 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,691 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,694 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,695 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,696 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,697 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,698 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,699 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,700 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,703 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,704 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,710 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,711 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,712 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,712 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,713 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:22:01,716 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-12 23:22:01,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:22:01,783 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=FINITE_AUTOMATA, 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 [2021-11-12 23:22:01,784 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-12 23:22:01,799 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:22:01,819 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 74 transitions, 153 flow [2021-11-12 23:22:01,827 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 74 transitions, 153 flow [2021-11-12 23:22:01,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 153 flow [2021-11-12 23:22:01,878 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-11-12 23:22:01,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-12 23:22:01,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2021-11-12 23:22:01,906 INFO L116 LiptonReduction]: Number of co-enabled transitions 1188 [2021-11-12 23:22:06,229 INFO L131 LiptonReduction]: Checked pairs total: 6315 [2021-11-12 23:22:06,229 INFO L133 LiptonReduction]: Total number of compositions: 43 [2021-11-12 23:22:06,236 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 31 transitions, 67 flow [2021-11-12 23:22:06,257 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:06,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:06,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:22:06,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:06,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:06,267 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:06,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:06,272 INFO L85 PathProgramCache]: Analyzing trace with hash -2112373933, now seen corresponding path program 1 times [2021-11-12 23:22:06,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:06,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470976310] [2021-11-12 23:22:06,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:06,285 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:06,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:06,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:06,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:22:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:06,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:06,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:06,444 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 [2021-11-12 23:22:06,479 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:06,480 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 23 [2021-11-12 23:22:06,540 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:06,541 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 31 treesize of output 39 [2021-11-12 23:22:06,738 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:06,738 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 48 treesize of output 62 [2021-11-12 23:22:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:06,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:07,123 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:07,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470976310] [2021-11-12 23:22:07,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470976310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:07,124 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:07,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:22:07,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098908360] [2021-11-12 23:22:07,126 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:07,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:07,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:07,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:07,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:07,194 INFO L87 Difference]: Start difference. First operand has 226 states, 218 states have (on average 1.926605504587156) internal successors, (420), 225 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:07,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:07,537 INFO L93 Difference]: Finished difference Result 309 states and 580 transitions. [2021-11-12 23:22:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:07,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:22:07,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:07,554 INFO L225 Difference]: With dead ends: 309 [2021-11-12 23:22:07,555 INFO L226 Difference]: Without dead ends: 309 [2021-11-12 23:22:07,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:07,559 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.19ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 218.03ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:07,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 28 Invalid, 111 Unknown, 0 Unchecked, 2.19ms Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 44 Unchecked, 218.03ms Time] [2021-11-12 23:22:07,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-12 23:22:07,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 281. [2021-11-12 23:22:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 273 states have (on average 1.9267399267399268) internal successors, (526), 280 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 526 transitions. [2021-11-12 23:22:07,625 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 526 transitions. Word has length 8 [2021-11-12 23:22:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:07,625 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 526 transitions. [2021-11-12 23:22:07,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 526 transitions. [2021-11-12 23:22:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:22:07,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:07,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:07,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:07,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:07,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:07,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:07,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1665303195, now seen corresponding path program 1 times [2021-11-12 23:22:07,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:07,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432172155] [2021-11-12 23:22:07,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:07,845 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:07,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:07,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:07,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:22:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:07,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:07,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:07,937 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 [2021-11-12 23:22:07,962 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:07,963 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 25 treesize of output 27 [2021-11-12 23:22:08,046 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:08,046 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 44 treesize of output 52 [2021-11-12 23:22:08,224 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:08,225 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 69 treesize of output 83 [2021-11-12 23:22:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:08,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:08,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:08,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432172155] [2021-11-12 23:22:08,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432172155] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:08,541 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:08,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:22:08,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869023877] [2021-11-12 23:22:08,541 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:08,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:22:08,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:22:08,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:22:08,544 INFO L87 Difference]: Start difference. First operand 281 states and 526 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:09,172 INFO L93 Difference]: Finished difference Result 304 states and 566 transitions. [2021-11-12 23:22:09,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:09,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-12 23:22:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:09,176 INFO L225 Difference]: With dead ends: 304 [2021-11-12 23:22:09,176 INFO L226 Difference]: Without dead ends: 304 [2021-11-12 23:22:09,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=33, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:22:09,178 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 459.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.51ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 551.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:09,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 346 Unknown, 0 Unchecked, 7.51ms Time], IncrementalHoareTripleChecker [21 Valid, 245 Invalid, 0 Unknown, 80 Unchecked, 551.02ms Time] [2021-11-12 23:22:09,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-12 23:22:09,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 292. [2021-11-12 23:22:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 285 states have (on average 1.9087719298245613) internal successors, (544), 291 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 544 transitions. [2021-11-12 23:22:09,214 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 544 transitions. Word has length 8 [2021-11-12 23:22:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:09,215 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 544 transitions. [2021-11-12 23:22:09,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 544 transitions. [2021-11-12 23:22:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:22:09,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:09,217 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:09,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:09,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:09,429 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:09,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:09,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1059080806, now seen corresponding path program 1 times [2021-11-12 23:22:09,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:09,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823574788] [2021-11-12 23:22:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:09,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:09,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:09,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:22:09,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:09,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:09,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:09,526 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 [2021-11-12 23:22:09,548 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:09,549 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 23 [2021-11-12 23:22:09,603 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:09,603 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 33 treesize of output 41 [2021-11-12 23:22:09,738 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:09,738 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 57 treesize of output 71 [2021-11-12 23:22:09,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:09,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:10,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:10,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:10,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823574788] [2021-11-12 23:22:10,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823574788] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:10,076 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:10,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:22:10,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100882948] [2021-11-12 23:22:10,076 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:10,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:10,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:10,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:10,078 INFO L87 Difference]: Start difference. First operand 292 states and 544 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:10,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:10,385 INFO L93 Difference]: Finished difference Result 383 states and 698 transitions. [2021-11-12 23:22:10,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:10,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 23:22:10,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:10,395 INFO L225 Difference]: With dead ends: 383 [2021-11-12 23:22:10,395 INFO L226 Difference]: Without dead ends: 383 [2021-11-12 23:22:10,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:10,397 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.78ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 225.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:10,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 24 Invalid, 167 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [12 Valid, 115 Invalid, 0 Unknown, 40 Unchecked, 225.23ms Time] [2021-11-12 23:22:10,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-11-12 23:22:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 285. [2021-11-12 23:22:10,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 278 states have (on average 1.9064748201438848) internal successors, (530), 284 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 530 transitions. [2021-11-12 23:22:10,419 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 530 transitions. Word has length 9 [2021-11-12 23:22:10,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:10,420 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 530 transitions. [2021-11-12 23:22:10,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 530 transitions. [2021-11-12 23:22:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 23:22:10,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:10,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:10,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:22:10,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:10,634 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:10,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1057563976, now seen corresponding path program 2 times [2021-11-12 23:22:10,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:10,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763918991] [2021-11-12 23:22:10,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:22:10,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:10,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:10,652 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:10,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:22:10,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 23:22:10,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:22:10,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:10,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:10,750 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 [2021-11-12 23:22:10,787 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:10,787 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 23 [2021-11-12 23:22:10,883 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:10,884 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 38 [2021-11-12 23:22:10,985 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:10,986 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 41 treesize of output 55 [2021-11-12 23:22:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:11,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:11,171 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:11,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763918991] [2021-11-12 23:22:11,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763918991] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:11,171 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:11,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-12 23:22:11,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111824644] [2021-11-12 23:22:11,172 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:11,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:22:11,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:11,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:22:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:22:11,173 INFO L87 Difference]: Start difference. First operand 285 states and 530 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:11,748 INFO L93 Difference]: Finished difference Result 296 states and 544 transitions. [2021-11-12 23:22:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:11,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 23:22:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:11,751 INFO L225 Difference]: With dead ends: 296 [2021-11-12 23:22:11,751 INFO L226 Difference]: Without dead ends: 296 [2021-11-12 23:22:11,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=20, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:22:11,753 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 463.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 538.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:11,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 28 Invalid, 255 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [21 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 538.84ms Time] [2021-11-12 23:22:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-12 23:22:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 257. [2021-11-12 23:22:11,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 250 states have (on average 1.896) internal successors, (474), 256 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:11,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 474 transitions. [2021-11-12 23:22:11,770 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 474 transitions. Word has length 9 [2021-11-12 23:22:11,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:11,770 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 474 transitions. [2021-11-12 23:22:11,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:11,771 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 474 transitions. [2021-11-12 23:22:11,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:22:11,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:11,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:11,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:11,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:11,986 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:11,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:11,987 INFO L85 PathProgramCache]: Analyzing trace with hash 751859609, now seen corresponding path program 1 times [2021-11-12 23:22:11,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:11,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [38790853] [2021-11-12 23:22:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:11,988 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:11,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:11,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:11,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:22:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:12,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:12,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:12,095 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 [2021-11-12 23:22:12,116 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:12,117 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 24 treesize of output 26 [2021-11-12 23:22:12,170 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:12,171 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 41 treesize of output 49 [2021-11-12 23:22:12,301 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:12,301 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 81 treesize of output 95 [2021-11-12 23:22:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:12,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:12,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:12,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [38790853] [2021-11-12 23:22:12,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [38790853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:12,585 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:12,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:22:12,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148357075] [2021-11-12 23:22:12,586 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:12,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:12,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:12,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:12,587 INFO L87 Difference]: Start difference. First operand 257 states and 474 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:12,931 INFO L93 Difference]: Finished difference Result 306 states and 567 transitions. [2021-11-12 23:22:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:12,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 23:22:12,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:12,939 INFO L225 Difference]: With dead ends: 306 [2021-11-12 23:22:12,940 INFO L226 Difference]: Without dead ends: 294 [2021-11-12 23:22:12,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:12,941 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 24 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 269.01ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:12,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 155 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 7 Unchecked, 269.01ms Time] [2021-11-12 23:22:12,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-12 23:22:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-11-12 23:22:12,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 287 states have (on average 1.89198606271777) internal successors, (543), 293 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 543 transitions. [2021-11-12 23:22:12,956 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 543 transitions. Word has length 14 [2021-11-12 23:22:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:12,956 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 543 transitions. [2021-11-12 23:22:12,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:12,957 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 543 transitions. [2021-11-12 23:22:12,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 23:22:12,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:12,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:12,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:13,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:13,171 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:13,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:13,171 INFO L85 PathProgramCache]: Analyzing trace with hash 820469901, now seen corresponding path program 1 times [2021-11-12 23:22:13,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:13,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429643681] [2021-11-12 23:22:13,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:13,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:13,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:13,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:13,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:22:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:13,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:13,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:13,242 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 [2021-11-12 23:22:13,260 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:13,261 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 24 treesize of output 26 [2021-11-12 23:22:13,307 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:13,308 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 39 treesize of output 47 [2021-11-12 23:22:13,429 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:13,429 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 74 treesize of output 88 [2021-11-12 23:22:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:13,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:13,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:13,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429643681] [2021-11-12 23:22:13,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429643681] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:13,664 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:13,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:22:13,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011702931] [2021-11-12 23:22:13,664 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:13,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:13,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:13,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:13,665 INFO L87 Difference]: Start difference. First operand 294 states and 543 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:13,893 INFO L93 Difference]: Finished difference Result 345 states and 639 transitions. [2021-11-12 23:22:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:13,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 23:22:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:13,896 INFO L225 Difference]: With dead ends: 345 [2021-11-12 23:22:13,897 INFO L226 Difference]: Without dead ends: 333 [2021-11-12 23:22:13,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:13,898 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 169.12ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:13,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 16 Invalid, 144 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 65 Unchecked, 169.12ms Time] [2021-11-12 23:22:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-11-12 23:22:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2021-11-12 23:22:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 326 states have (on average 1.8865030674846626) internal successors, (615), 332 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 615 transitions. [2021-11-12 23:22:13,913 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 615 transitions. Word has length 14 [2021-11-12 23:22:13,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:13,914 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 615 transitions. [2021-11-12 23:22:13,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:13,914 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 615 transitions. [2021-11-12 23:22:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-12 23:22:13,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:13,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:13,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:14,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:14,129 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -332768194, now seen corresponding path program 1 times [2021-11-12 23:22:14,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:14,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063555478] [2021-11-12 23:22:14,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:14,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:14,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:14,131 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:14,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:22:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:22:14,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:22:14,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:22:14,209 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 [2021-11-12 23:22:14,236 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-12 23:22:14,237 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 26 treesize of output 28 [2021-11-12 23:22:14,302 INFO L354 Elim1Store]: treesize reduction 50, result has 31.5 percent of original size [2021-11-12 23:22:14,303 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 47 treesize of output 55 [2021-11-12 23:22:14,433 INFO L354 Elim1Store]: treesize reduction 95, result has 26.9 percent of original size [2021-11-12 23:22:14,434 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 82 treesize of output 96 [2021-11-12 23:22:14,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:14,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:22:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:22:14,689 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:22:14,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063555478] [2021-11-12 23:22:14,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063555478] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:22:14,690 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:22:14,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-12 23:22:14,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152419581] [2021-11-12 23:22:14,690 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:22:14,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:22:14,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:22:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:22:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:14,692 INFO L87 Difference]: Start difference. First operand 333 states and 615 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:15,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:22:15,209 INFO L93 Difference]: Finished difference Result 352 states and 638 transitions. [2021-11-12 23:22:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:22:15,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-12 23:22:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:22:15,227 INFO L225 Difference]: With dead ends: 352 [2021-11-12 23:22:15,227 INFO L226 Difference]: Without dead ends: 348 [2021-11-12 23:22:15,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=26, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:22:15,233 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 424.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.45ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 479.92ms IncrementalHoareTripleChecker+Time [2021-11-12 23:22:15,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 16 Invalid, 282 Unknown, 0 Unchecked, 2.45ms Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 6 Unchecked, 479.92ms Time] [2021-11-12 23:22:15,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-12 23:22:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 330. [2021-11-12 23:22:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 323 states have (on average 1.8761609907120742) internal successors, (606), 329 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 606 transitions. [2021-11-12 23:22:15,252 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 606 transitions. Word has length 15 [2021-11-12 23:22:15,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:22:15,252 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 606 transitions. [2021-11-12 23:22:15,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:22:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 606 transitions. [2021-11-12 23:22:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:22:15,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:22:15,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:15,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:15,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:15,467 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-12 23:22:15,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:22:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash 982621592, now seen corresponding path program 1 times [2021-11-12 23:22:15,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:22:15,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998249083] [2021-11-12 23:22:15,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:22:15,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:22:15,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:22:15,470 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:22:15,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:22:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:22:15,526 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:22:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:22:15,578 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-12 23:22:15,579 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:22:15,580 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2021-11-12 23:22:15,581 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2021-11-12 23:22:15,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2021-11-12 23:22:15,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2021-11-12 23:22:15,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2021-11-12 23:22:15,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2021-11-12 23:22:15,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2021-11-12 23:22:15,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:22:15,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:22:15,784 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2021-11-12 23:22:15,789 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:22:15,789 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:22:15,804 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.DataRaceFoundResult.getLongDescription(DataRaceFoundResult.java:136) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-12 23:22:15,806 INFO L158 Benchmark]: Toolchain (without parser) took 15788.21ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 46.9MB in the beginning and 29.6MB in the end (delta: 17.3MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2021-11-12 23:22:15,807 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 48.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:22:15,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 911.15ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 34.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 23:22:15,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.28ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 32.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:22:15,819 INFO L158 Benchmark]: Boogie Preprocessor took 67.15ms. Allocated memory is still 69.2MB. Free memory was 32.2MB in the beginning and 30.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:22:15,819 INFO L158 Benchmark]: RCFGBuilder took 549.16ms. Allocated memory is still 69.2MB. Free memory was 30.2MB in the beginning and 41.2MB in the end (delta: -11.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-11-12 23:22:15,820 INFO L158 Benchmark]: TraceAbstraction took 14168.52ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 40.6MB in the beginning and 29.6MB in the end (delta: 11.0MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2021-11-12 23:22:15,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory was 50.3MB in the beginning and 50.3MB in the end (delta: 48.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 911.15ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 34.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.28ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 32.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.15ms. Allocated memory is still 69.2MB. Free memory was 32.2MB in the beginning and 30.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 549.16ms. Allocated memory is still 69.2MB. Free memory was 30.2MB in the beginning and 41.2MB in the end (delta: -11.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 14168.52ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 40.6MB in the beginning and 29.6MB in the end (delta: 11.0MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 77 PlacesBefore, 35 PlacesAfterwards, 74 TransitionsBefore, 31 TransitionsAfterwards, 1188 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 6315 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1332, positive: 978, positive conditional: 0, positive unconditional: 978, negative: 354, negative conditional: 0, negative unconditional: 354, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 672, positive: 592, positive conditional: 0, positive unconditional: 592, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 672, positive: 555, positive conditional: 0, positive unconditional: 555, negative: 117, negative conditional: 0, negative unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 117, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 708, negative conditional: 0, negative unconditional: 708, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1332, positive: 386, positive conditional: 0, positive unconditional: 386, negative: 274, negative conditional: 0, negative unconditional: 274, unknown: 672, unknown conditional: 0, unknown unconditional: 672] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-12 23:22:15,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0786cb82-656b-4d99-a397-adf0838f52b0/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null