./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58087887a1dd564559680784309457f518906cbf .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:40:09,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:40:09,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:40:09,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:40:09,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:40:09,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:40:09,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:40:09,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:40:09,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:40:09,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:40:09,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:40:09,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:40:09,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:40:09,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:40:09,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:40:09,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:40:09,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:40:09,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:40:09,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:40:09,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:40:09,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:40:09,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:40:09,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:40:09,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:40:09,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:40:09,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:40:09,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:40:09,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:40:09,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:40:09,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:40:09,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:40:09,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:40:09,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:40:09,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:40:09,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:40:09,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:40:09,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:40:09,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:40:09,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:40:09,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:40:09,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:40:09,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:40:09,291 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:40:09,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:40:09,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:40:09,294 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:40:09,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:40:09,294 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:40:09,295 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:40:09,295 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:40:09,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:40:09,296 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:40:09,297 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:40:09,297 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:40:09,298 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:40:09,298 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:40:09,299 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:40:09,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:40:09,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:40:09,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:40:09,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:40:09,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:40:09,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:40:09,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:40:09,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:40:09,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:40:09,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:40:09,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:40:09,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:40:09,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:40:09,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:40:09,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:40:09,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:40:09,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:40:09,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:40:09,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:40:09,308 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:40:09,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:40:09,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:40:09,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:40:09,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:40:09,310 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-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58087887a1dd564559680784309457f518906cbf [2020-12-03 12:40:09,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:40:09,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:40:09,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:40:09,675 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:40:09,676 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:40:09,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2020-12-03 12:40:09,753 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/data/98aea95cd/00f98e3f453b4ab4ad594b2e49c85007/FLAG8248e0daf [2020-12-03 12:40:10,360 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:40:10,361 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2020-12-03 12:40:10,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/data/98aea95cd/00f98e3f453b4ab4ad594b2e49c85007/FLAG8248e0daf [2020-12-03 12:40:10,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/data/98aea95cd/00f98e3f453b4ab4ad594b2e49c85007 [2020-12-03 12:40:10,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:40:10,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:40:10,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:40:10,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:40:10,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:40:10,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:40:10" (1/1) ... [2020-12-03 12:40:10,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625dd88d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:10, skipping insertion in model container [2020-12-03 12:40:10,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:40:10" (1/1) ... [2020-12-03 12:40:10,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:40:10,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:40:11,028 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-03 12:40:11,173 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i[31244,31257] [2020-12-03 12:40:11,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:40:11,190 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:40:11,207 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-03 12:40:11,232 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i[31244,31257] [2020-12-03 12:40:11,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:40:11,323 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:40:11,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11 WrapperNode [2020-12-03 12:40:11,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:40:11,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:40:11,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:40:11,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:40:11,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:40:11,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:40:11,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:40:11,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:40:11,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... [2020-12-03 12:40:11,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:40:11,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:40:11,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:40:11,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:40:11,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:40:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 12:40:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:40:11,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-03 12:40:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-12-03 12:40:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-12-03 12:40:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:40:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:40:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:40:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-03 12:40:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:40:11,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:40:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-12-03 12:40:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-12-03 12:40:11,510 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-03 12:40:12,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:40:12,090 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 12:40:12,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:40:12 BoogieIcfgContainer [2020-12-03 12:40:12,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:40:12,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:40:12,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:40:12,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:40:12,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:40:10" (1/3) ... [2020-12-03 12:40:12,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fdfae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:40:12, skipping insertion in model container [2020-12-03 12:40:12,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:40:11" (2/3) ... [2020-12-03 12:40:12,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fdfae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:40:12, skipping insertion in model container [2020-12-03 12:40:12,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:40:12" (3/3) ... [2020-12-03 12:40:12,100 INFO L111 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2020-12-03 12:40:12,113 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-03 12:40:12,114 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:40:12,117 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:40:12,118 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-03 12:40:12,148 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,149 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,149 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,149 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,150 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,150 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,150 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,150 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,151 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,151 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,151 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,151 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,152 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,152 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,152 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,153 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,153 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,153 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,153 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,154 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,154 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,154 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,154 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,155 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,155 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,155 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,155 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,156 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,156 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,156 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,157 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,157 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,157 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,157 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,158 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,158 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,158 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,158 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,159 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,159 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,159 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,160 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,160 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,160 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,160 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,161 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,161 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,161 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,161 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,162 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,162 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,162 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,163 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,163 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,163 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,163 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,164 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,164 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,164 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,165 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,165 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,165 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,165 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,166 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,167 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,167 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,167 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,168 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,168 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,168 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,169 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,169 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,169 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,170 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,170 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,170 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,170 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,170 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,171 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,171 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,171 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,171 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,172 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,172 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,172 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,173 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,174 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,174 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,174 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,174 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,174 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,175 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,175 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,175 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,175 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,175 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,176 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,176 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,176 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,177 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,177 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,177 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,179 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,179 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,179 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,180 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,180 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,180 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,183 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,183 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,183 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,183 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,184 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,184 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,184 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,184 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,184 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,186 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,187 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,187 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,187 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,187 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,187 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,189 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,190 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,190 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,190 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,190 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,190 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,191 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,191 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~ly~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,191 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~lx~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:40:12,225 INFO L149 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2020-12-03 12:40:12,236 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-03 12:40:12,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:40:12,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:40:12,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:40:12,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:40:12,255 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:40:12,255 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:40:12,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:40:12,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:40:12,269 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-03 12:40:12,282 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 110 transitions, 288 flow [2020-12-03 12:40:12,285 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 110 transitions, 288 flow [2020-12-03 12:40:12,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 288 flow [2020-12-03 12:40:12,416 INFO L129 PetriNetUnfolder]: 19/144 cut-off events. [2020-12-03 12:40:12,417 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-12-03 12:40:12,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 144 events. 19/144 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 345 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 97. Up to 12 conditions per place. [2020-12-03 12:40:12,432 INFO L116 LiptonReduction]: Number of co-enabled transitions 2994 [2020-12-03 12:40:15,761 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-03 12:40:15,959 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-03 12:40:16,519 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-03 12:40:16,719 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-03 12:40:17,121 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2020-12-03 12:40:17,302 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-12-03 12:40:17,455 INFO L131 LiptonReduction]: Checked pairs total: 27193 [2020-12-03 12:40:17,456 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-03 12:40:17,460 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 60 transitions, 188 flow [2020-12-03 12:40:18,085 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6574 states. [2020-12-03 12:40:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6574 states. [2020-12-03 12:40:18,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 12:40:18,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:18,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:18,097 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:18,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:18,107 INFO L82 PathProgramCache]: Analyzing trace with hash 215866751, now seen corresponding path program 1 times [2020-12-03 12:40:18,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:18,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362210866] [2020-12-03 12:40:18,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:18,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362210866] [2020-12-03 12:40:18,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:18,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:40:18,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209961202] [2020-12-03 12:40:18,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:40:18,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:18,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:40:18,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:40:18,437 INFO L87 Difference]: Start difference. First operand 6574 states. Second operand 5 states. [2020-12-03 12:40:18,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:18,957 INFO L93 Difference]: Finished difference Result 14569 states and 50345 transitions. [2020-12-03 12:40:18,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-03 12:40:18,960 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-12-03 12:40:18,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:19,086 INFO L225 Difference]: With dead ends: 14569 [2020-12-03 12:40:19,087 INFO L226 Difference]: Without dead ends: 10609 [2020-12-03 12:40:19,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:40:19,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10609 states. [2020-12-03 12:40:19,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10609 to 6772. [2020-12-03 12:40:19,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6772 states. [2020-12-03 12:40:19,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6772 states to 6772 states and 23787 transitions. [2020-12-03 12:40:19,652 INFO L78 Accepts]: Start accepts. Automaton has 6772 states and 23787 transitions. Word has length 9 [2020-12-03 12:40:19,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:19,653 INFO L481 AbstractCegarLoop]: Abstraction has 6772 states and 23787 transitions. [2020-12-03 12:40:19,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:40:19,653 INFO L276 IsEmpty]: Start isEmpty. Operand 6772 states and 23787 transitions. [2020-12-03 12:40:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:40:19,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:19,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:19,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:40:19,657 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:19,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:19,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1284519412, now seen corresponding path program 1 times [2020-12-03 12:40:19,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:19,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302301454] [2020-12-03 12:40:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:19,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:19,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302301454] [2020-12-03 12:40:19,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:19,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:40:19,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992496943] [2020-12-03 12:40:19,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:40:19,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:19,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:40:19,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:40:19,725 INFO L87 Difference]: Start difference. First operand 6772 states and 23787 transitions. Second operand 3 states. [2020-12-03 12:40:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:19,915 INFO L93 Difference]: Finished difference Result 5796 states and 18185 transitions. [2020-12-03 12:40:19,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:40:19,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-03 12:40:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:19,974 INFO L225 Difference]: With dead ends: 5796 [2020-12-03 12:40:19,974 INFO L226 Difference]: Without dead ends: 5754 [2020-12-03 12:40:19,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:40:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2020-12-03 12:40:20,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5754. [2020-12-03 12:40:20,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5754 states. [2020-12-03 12:40:20,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5754 states to 5754 states and 18075 transitions. [2020-12-03 12:40:20,265 INFO L78 Accepts]: Start accepts. Automaton has 5754 states and 18075 transitions. Word has length 11 [2020-12-03 12:40:20,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:20,266 INFO L481 AbstractCegarLoop]: Abstraction has 5754 states and 18075 transitions. [2020-12-03 12:40:20,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:40:20,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5754 states and 18075 transitions. [2020-12-03 12:40:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:40:20,272 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:20,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:20,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:40:20,272 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:20,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:20,283 INFO L82 PathProgramCache]: Analyzing trace with hash -486298774, now seen corresponding path program 2 times [2020-12-03 12:40:20,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:20,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447263331] [2020-12-03 12:40:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:20,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447263331] [2020-12-03 12:40:20,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:20,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:40:20,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383973179] [2020-12-03 12:40:20,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:40:20,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:20,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:40:20,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:40:20,384 INFO L87 Difference]: Start difference. First operand 5754 states and 18075 transitions. Second operand 4 states. [2020-12-03 12:40:20,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:20,509 INFO L93 Difference]: Finished difference Result 3889 states and 9837 transitions. [2020-12-03 12:40:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:40:20,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-03 12:40:20,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:20,525 INFO L225 Difference]: With dead ends: 3889 [2020-12-03 12:40:20,525 INFO L226 Difference]: Without dead ends: 3759 [2020-12-03 12:40:20,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:40:20,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2020-12-03 12:40:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3171. [2020-12-03 12:40:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3171 states. [2020-12-03 12:40:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 8234 transitions. [2020-12-03 12:40:20,741 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 8234 transitions. Word has length 11 [2020-12-03 12:40:20,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:20,741 INFO L481 AbstractCegarLoop]: Abstraction has 3171 states and 8234 transitions. [2020-12-03 12:40:20,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:40:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 8234 transitions. [2020-12-03 12:40:20,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:40:20,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:20,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:20,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:40:20,745 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:20,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:20,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1170749041, now seen corresponding path program 1 times [2020-12-03 12:40:20,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:20,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282051825] [2020-12-03 12:40:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:20,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282051825] [2020-12-03 12:40:20,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:20,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:40:20,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083990941] [2020-12-03 12:40:20,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:40:20,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:20,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:40:20,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:40:20,843 INFO L87 Difference]: Start difference. First operand 3171 states and 8234 transitions. Second operand 5 states. [2020-12-03 12:40:21,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:21,039 INFO L93 Difference]: Finished difference Result 4389 states and 11053 transitions. [2020-12-03 12:40:21,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-03 12:40:21,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-03 12:40:21,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:21,052 INFO L225 Difference]: With dead ends: 4389 [2020-12-03 12:40:21,052 INFO L226 Difference]: Without dead ends: 3713 [2020-12-03 12:40:21,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:40:21,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2020-12-03 12:40:21,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 2879. [2020-12-03 12:40:21,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2879 states. [2020-12-03 12:40:21,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 7415 transitions. [2020-12-03 12:40:21,178 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 7415 transitions. Word has length 13 [2020-12-03 12:40:21,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:21,180 INFO L481 AbstractCegarLoop]: Abstraction has 2879 states and 7415 transitions. [2020-12-03 12:40:21,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:40:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 7415 transitions. [2020-12-03 12:40:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:40:21,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:21,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:21,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:40:21,183 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:21,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:21,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1338205501, now seen corresponding path program 1 times [2020-12-03 12:40:21,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:21,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746080732] [2020-12-03 12:40:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:21,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746080732] [2020-12-03 12:40:21,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:21,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:40:21,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16018841] [2020-12-03 12:40:21,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:40:21,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:40:21,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:40:21,273 INFO L87 Difference]: Start difference. First operand 2879 states and 7415 transitions. Second operand 5 states. [2020-12-03 12:40:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:21,487 INFO L93 Difference]: Finished difference Result 3539 states and 8886 transitions. [2020-12-03 12:40:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:40:21,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-03 12:40:21,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:21,499 INFO L225 Difference]: With dead ends: 3539 [2020-12-03 12:40:21,499 INFO L226 Difference]: Without dead ends: 3372 [2020-12-03 12:40:21,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:40:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2020-12-03 12:40:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2537. [2020-12-03 12:40:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2537 states. [2020-12-03 12:40:21,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 6499 transitions. [2020-12-03 12:40:21,600 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 6499 transitions. Word has length 16 [2020-12-03 12:40:21,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:21,601 INFO L481 AbstractCegarLoop]: Abstraction has 2537 states and 6499 transitions. [2020-12-03 12:40:21,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:40:21,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 6499 transitions. [2020-12-03 12:40:21,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:40:21,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:21,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:21,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:40:21,603 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:21,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:21,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1337772589, now seen corresponding path program 1 times [2020-12-03 12:40:21,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:21,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899781950] [2020-12-03 12:40:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:21,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899781950] [2020-12-03 12:40:21,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:21,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:40:21,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205575954] [2020-12-03 12:40:21,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:40:21,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:21,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:40:21,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:40:21,668 INFO L87 Difference]: Start difference. First operand 2537 states and 6499 transitions. Second operand 5 states. [2020-12-03 12:40:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:21,807 INFO L93 Difference]: Finished difference Result 3091 states and 7769 transitions. [2020-12-03 12:40:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:40:21,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-12-03 12:40:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:21,816 INFO L225 Difference]: With dead ends: 3091 [2020-12-03 12:40:21,816 INFO L226 Difference]: Without dead ends: 2789 [2020-12-03 12:40:21,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:40:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2020-12-03 12:40:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2048. [2020-12-03 12:40:21,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2020-12-03 12:40:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 5239 transitions. [2020-12-03 12:40:21,891 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 5239 transitions. Word has length 16 [2020-12-03 12:40:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:21,892 INFO L481 AbstractCegarLoop]: Abstraction has 2048 states and 5239 transitions. [2020-12-03 12:40:21,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:40:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 5239 transitions. [2020-12-03 12:40:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:40:21,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:21,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:21,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:40:21,895 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:21,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1459028037, now seen corresponding path program 1 times [2020-12-03 12:40:21,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:21,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267565954] [2020-12-03 12:40:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:21,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267565954] [2020-12-03 12:40:21,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:21,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:40:21,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977635153] [2020-12-03 12:40:21,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:40:21,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:21,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:40:21,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:40:21,988 INFO L87 Difference]: Start difference. First operand 2048 states and 5239 transitions. Second operand 6 states. [2020-12-03 12:40:22,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:22,075 INFO L93 Difference]: Finished difference Result 2380 states and 6028 transitions. [2020-12-03 12:40:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:40:22,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-03 12:40:22,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:22,083 INFO L225 Difference]: With dead ends: 2380 [2020-12-03 12:40:22,084 INFO L226 Difference]: Without dead ends: 2176 [2020-12-03 12:40:22,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:40:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2020-12-03 12:40:22,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2000. [2020-12-03 12:40:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2000 states. [2020-12-03 12:40:22,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 5059 transitions. [2020-12-03 12:40:22,155 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 5059 transitions. Word has length 22 [2020-12-03 12:40:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:22,155 INFO L481 AbstractCegarLoop]: Abstraction has 2000 states and 5059 transitions. [2020-12-03 12:40:22,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:40:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 5059 transitions. [2020-12-03 12:40:22,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:40:22,159 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:22,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:22,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-03 12:40:22,160 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:22,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:22,160 INFO L82 PathProgramCache]: Analyzing trace with hash -893703140, now seen corresponding path program 1 times [2020-12-03 12:40:22,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:22,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297891547] [2020-12-03 12:40:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:40:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:40:22,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297891547] [2020-12-03 12:40:22,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:40:22,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:40:22,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196846763] [2020-12-03 12:40:22,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:40:22,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:40:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:40:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:40:22,253 INFO L87 Difference]: Start difference. First operand 2000 states and 5059 transitions. Second operand 6 states. [2020-12-03 12:40:22,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:40:22,347 INFO L93 Difference]: Finished difference Result 2332 states and 5848 transitions. [2020-12-03 12:40:22,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:40:22,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-03 12:40:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:40:22,354 INFO L225 Difference]: With dead ends: 2332 [2020-12-03 12:40:22,354 INFO L226 Difference]: Without dead ends: 1936 [2020-12-03 12:40:22,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:40:22,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2020-12-03 12:40:22,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1760. [2020-12-03 12:40:22,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1760 states. [2020-12-03 12:40:22,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 4351 transitions. [2020-12-03 12:40:22,435 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 4351 transitions. Word has length 22 [2020-12-03 12:40:22,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:40:22,435 INFO L481 AbstractCegarLoop]: Abstraction has 1760 states and 4351 transitions. [2020-12-03 12:40:22,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:40:22,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 4351 transitions. [2020-12-03 12:40:22,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:40:22,438 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:40:22,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:40:22,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-03 12:40:22,439 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-03 12:40:22,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:40:22,441 INFO L82 PathProgramCache]: Analyzing trace with hash 944960700, now seen corresponding path program 2 times [2020-12-03 12:40:22,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:40:22,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143879126] [2020-12-03 12:40:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:40:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:40:22,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:40:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:40:22,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:40:22,521 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:40:22,521 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:40:22,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-03 12:40:22,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:40:22 BasicIcfg [2020-12-03 12:40:22,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:40:22,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:40:22,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:40:22,606 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:40:22,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:40:12" (3/4) ... [2020-12-03 12:40:22,609 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:40:22,713 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e8c0e33a-2d22-4618-a3ba-04eb3cc68e5a/bin/utaipan/witness.graphml [2020-12-03 12:40:22,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:40:22,715 INFO L168 Benchmark]: Toolchain (without parser) took 12054.62 ms. Allocated memory was 86.0 MB in the beginning and 398.5 MB in the end (delta: 312.5 MB). Free memory was 48.3 MB in the beginning and 132.0 MB in the end (delta: -83.8 MB). Peak memory consumption was 229.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,715 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:40:22,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 662.71 ms. Allocated memory is still 86.0 MB. Free memory was 48.1 MB in the beginning and 42.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.29 ms. Allocated memory is still 86.0 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,716 INFO L168 Benchmark]: Boogie Preprocessor took 26.97 ms. Allocated memory is still 86.0 MB. Free memory was 40.2 MB in the beginning and 38.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,716 INFO L168 Benchmark]: RCFGBuilder took 693.73 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 38.8 MB in the beginning and 59.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,717 INFO L168 Benchmark]: TraceAbstraction took 10511.40 ms. Allocated memory was 104.9 MB in the beginning and 398.5 MB in the end (delta: 293.6 MB). Free memory was 59.0 MB in the beginning and 140.4 MB in the end (delta: -81.4 MB). Peak memory consumption was 214.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,717 INFO L168 Benchmark]: Witness Printer took 108.06 ms. Allocated memory is still 398.5 MB. Free memory was 139.4 MB in the beginning and 132.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:40:22,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory is still 65.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 662.71 ms. Allocated memory is still 86.0 MB. Free memory was 48.1 MB in the beginning and 42.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.29 ms. Allocated memory is still 86.0 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.97 ms. Allocated memory is still 86.0 MB. Free memory was 40.2 MB in the beginning and 38.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 693.73 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 38.8 MB in the beginning and 59.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10511.40 ms. Allocated memory was 104.9 MB in the beginning and 398.5 MB in the end (delta: 293.6 MB). Free memory was 59.0 MB in the beginning and 140.4 MB in the end (delta: -81.4 MB). Peak memory consumption was 214.4 MB. Max. memory is 16.1 GB. * Witness Printer took 108.06 ms. Allocated memory is still 398.5 MB. Free memory was 139.4 MB in the beginning and 132.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2440 VarBasedMoverChecksPositive, 86 VarBasedMoverChecksNegative, 27 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 974 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.1s, 109 PlacesBefore, 60 PlacesAfterwards, 110 TransitionsBefore, 60 TransitionsAfterwards, 2994 CoEnabledTransitionPairs, 9 FixpointIterations, 27 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 27193 MoverChecksTotal - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L704] 0 int w=0, r=0, x, y; [L748] 0 pthread_t t1, t2, t3, t4; [L749] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L750] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L724] 2 int l; [L725] CALL 2 __VERIFIER_atomic_take_read_lock() [L710] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L710] RET 2 assume_abort_if_not(w==0) [L711] 2 r = r+1 [L725] RET 2 __VERIFIER_atomic_take_read_lock() [L751] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=1, w=0, x=0, y=0] [L752] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=1, w=0, x=0, y=0] [L727] 2 l = x VAL [r=1, w=0, x=0, y=0] [L730] 2 y = l VAL [r=1, w=0, x=0, y=0] [L733] 2 int ly = y; VAL [r=1, w=0, x=0, y=0] [L736] 2 int lx = x; VAL [r=1, w=0, x=0, y=0] [L738] COND FALSE 2 !(!(ly == lx)) [L740] 2 l = r-1 VAL [r=1, w=0, x=0, y=0] [L724] 4 int l; [L725] CALL 4 __VERIFIER_atomic_take_read_lock() [L710] CALL 4 assume_abort_if_not(w==0) [L3] COND FALSE 4 !(!cond) [L710] RET 4 assume_abort_if_not(w==0) [L711] 4 r = r+1 [L725] RET 4 __VERIFIER_atomic_take_read_lock() [L727] 4 l = x VAL [r=2, w=0, x=0, y=0] [L730] 4 y = l VAL [r=2, w=0, x=0, y=0] [L733] 4 int ly = y; VAL [r=2, w=0, x=0, y=0] [L743] 2 r = l [L745] 2 return 0; [L714] CALL 3 __VERIFIER_atomic_take_write_lock() [L706] CALL 3 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 3 !(!cond) [L706] RET 3 assume_abort_if_not(w==0 && r==0) [L707] 3 w = 1 [L714] RET 3 __VERIFIER_atomic_take_write_lock() [L716] 3 x = 3 VAL [r=0, w=1, x=3, y=0] [L736] 4 int lx = x; [L738] COND TRUE 4 !(ly == lx) [L738] 4 reach_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 823 SDtfs, 945 SDslu, 1332 SDs, 0 SdLazy, 471 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6772occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 7187 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 3832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...