./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-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_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/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 222125c717d992fdf8da41f61f0a35e98727dda6 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-12-09 17:59:02,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 17:59:02,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 17:59:02,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 17:59:02,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 17:59:02,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 17:59:02,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 17:59:02,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 17:59:02,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 17:59:02,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 17:59:02,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 17:59:02,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 17:59:02,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 17:59:02,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 17:59:02,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 17:59:02,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 17:59:02,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 17:59:02,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 17:59:02,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 17:59:02,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 17:59:02,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 17:59:02,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 17:59:02,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 17:59:02,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 17:59:02,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 17:59:02,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 17:59:02,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 17:59:02,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 17:59:02,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 17:59:02,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 17:59:02,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 17:59:02,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 17:59:02,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 17:59:02,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 17:59:02,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 17:59:02,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 17:59:02,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 17:59:02,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 17:59:02,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 17:59:02,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 17:59:02,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 17:59:02,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 17:59:02,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 17:59:02,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 17:59:02,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 17:59:02,321 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 17:59:02,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 17:59:02,322 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 17:59:02,322 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 17:59:02,322 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 17:59:02,322 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 17:59:02,322 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 17:59:02,323 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 17:59:02,323 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 17:59:02,323 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 17:59:02,323 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 17:59:02,323 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 17:59:02,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 17:59:02,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 17:59:02,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 17:59:02,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 17:59:02,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 17:59:02,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 17:59:02,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 17:59:02,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 17:59:02,325 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 17:59:02,326 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 17:59:02,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 17:59:02,326 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 17:59:02,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 17:59:02,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 17:59:02,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 17:59:02,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 17:59:02,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 17:59:02,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 17:59:02,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 17:59:02,327 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 17:59:02,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 17:59:02,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 17:59:02,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 17:59:02,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 17:59:02,328 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_53405bae-d58b-49d0-9155-fcce202c3f2e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 222125c717d992fdf8da41f61f0a35e98727dda6 [2020-12-09 17:59:02,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 17:59:02,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 17:59:02,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 17:59:02,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 17:59:02,520 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 17:59:02,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/../../sv-benchmarks/c/pthread/stack-2.i [2020-12-09 17:59:02,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/data/0803c4b90/5d5f44500004438090ddcb52d7833bc0/FLAG96648d8e6 [2020-12-09 17:59:02,983 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 17:59:02,984 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/sv-benchmarks/c/pthread/stack-2.i [2020-12-09 17:59:02,996 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/data/0803c4b90/5d5f44500004438090ddcb52d7833bc0/FLAG96648d8e6 [2020-12-09 17:59:03,334 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/data/0803c4b90/5d5f44500004438090ddcb52d7833bc0 [2020-12-09 17:59:03,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 17:59:03,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 17:59:03,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 17:59:03,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 17:59:03,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 17:59:03,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114edf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03, skipping insertion in model container [2020-12-09 17:59:03,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 17:59:03,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 17:59:03,673 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_53405bae-d58b-49d0-9155-fcce202c3f2e/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2020-12-09 17:59:03,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:59:03,706 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 17:59:03,742 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_53405bae-d58b-49d0-9155-fcce202c3f2e/sv-benchmarks/c/pthread/stack-2.i[41520,41533] [2020-12-09 17:59:03,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 17:59:03,867 INFO L208 MainTranslator]: Completed translation [2020-12-09 17:59:03,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03 WrapperNode [2020-12-09 17:59:03,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 17:59:03,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 17:59:03,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 17:59:03,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 17:59:03,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 17:59:03,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 17:59:03,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 17:59:03,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 17:59:03,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... [2020-12-09 17:59:03,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 17:59:03,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 17:59:03,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 17:59:03,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 17:59:03,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/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 [2020-12-09 17:59:04,020 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-12-09 17:59:04,020 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-12-09 17:59:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-12-09 17:59:04,021 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-12-09 17:59:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 17:59:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 17:59:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 17:59:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 17:59:04,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-09 17:59:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 17:59:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 17:59:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 17:59:04,023 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-09 17:59:04,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 17:59:04,360 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 17:59:04,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:59:04 BoogieIcfgContainer [2020-12-09 17:59:04,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 17:59:04,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 17:59:04,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 17:59:04,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 17:59:04,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:59:03" (1/3) ... [2020-12-09 17:59:04,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74591b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:59:04, skipping insertion in model container [2020-12-09 17:59:04,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:59:03" (2/3) ... [2020-12-09 17:59:04,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74591b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:59:04, skipping insertion in model container [2020-12-09 17:59:04,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:59:04" (3/3) ... [2020-12-09 17:59:04,368 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-12-09 17:59:04,378 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-09 17:59:04,379 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 17:59:04,381 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 17:59:04,382 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-09 17:59:04,409 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,409 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,409 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,409 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,410 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,411 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,412 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,413 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,414 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,415 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,416 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,417 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,418 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,419 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,420 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,421 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,422 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,423 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,424 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,425 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,426 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,427 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,427 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,435 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,437 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,438 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,439 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,440 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,441 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,442 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,443 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,444 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,445 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,446 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,447 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,448 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,448 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,448 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,448 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,448 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,448 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,450 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,450 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,450 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,450 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,450 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 17:59:04,463 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-09 17:59:04,471 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 17:59:04,486 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 17:59:04,486 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 17:59:04,486 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 17:59:04,486 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 17:59:04,486 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 17:59:04,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 17:59:04,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 17:59:04,487 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 17:59:04,497 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-09 17:59:04,499 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 155 transitions, 332 flow [2020-12-09 17:59:04,501 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 155 transitions, 332 flow [2020-12-09 17:59:04,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 155 transitions, 332 flow [2020-12-09 17:59:04,548 INFO L129 PetriNetUnfolder]: 11/155 cut-off events. [2020-12-09 17:59:04,549 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-09 17:59:04,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 155 events. 11/155 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2020-12-09 17:59:04,560 INFO L116 LiptonReduction]: Number of co-enabled transitions 6764 [2020-12-09 17:59:07,923 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-09 17:59:08,053 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-09 17:59:08,230 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-12-09 17:59:08,363 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-12-09 17:59:08,995 WARN L197 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2020-12-09 17:59:09,202 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 17:59:09,676 WARN L197 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 119 [2020-12-09 17:59:09,884 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-12-09 17:59:10,780 WARN L197 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 146 [2020-12-09 17:59:11,172 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-12-09 17:59:12,031 WARN L197 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 146 [2020-12-09 17:59:12,443 WARN L197 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-12-09 17:59:12,449 INFO L131 LiptonReduction]: Checked pairs total: 12291 [2020-12-09 17:59:12,449 INFO L133 LiptonReduction]: Total number of compositions: 143 [2020-12-09 17:59:12,454 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-12-09 17:59:12,470 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-12-09 17:59:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-12-09 17:59:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 17:59:12,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:12,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 17:59:12,475 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:12,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:12,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1587452620, now seen corresponding path program 1 times [2020-12-09 17:59:12,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:12,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474187409] [2020-12-09 17:59:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:12,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474187409] [2020-12-09 17:59:12,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:59:12,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:59:12,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360500326] [2020-12-09 17:59:12,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:59:12,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:12,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:59:12,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:12,642 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-12-09 17:59:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:12,690 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-12-09 17:59:12,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:59:12,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 17:59:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:12,706 INFO L225 Difference]: With dead ends: 602 [2020-12-09 17:59:12,706 INFO L226 Difference]: Without dead ends: 580 [2020-12-09 17:59:12,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:12,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-12-09 17:59:12,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-12-09 17:59:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-12-09 17:59:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-12-09 17:59:12,778 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-12-09 17:59:12,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:12,779 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-12-09 17:59:12,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:59:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-12-09 17:59:12,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 17:59:12,780 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:12,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:59:12,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 17:59:12,780 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:12,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:12,781 INFO L82 PathProgramCache]: Analyzing trace with hash -880906774, now seen corresponding path program 1 times [2020-12-09 17:59:12,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:12,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669360575] [2020-12-09 17:59:12,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:12,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:12,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669360575] [2020-12-09 17:59:12,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:59:12,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:59:12,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023787455] [2020-12-09 17:59:12,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:59:12,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:12,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:59:12,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:12,857 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-12-09 17:59:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:12,872 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-12-09 17:59:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:59:12,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 17:59:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:12,876 INFO L225 Difference]: With dead ends: 530 [2020-12-09 17:59:12,876 INFO L226 Difference]: Without dead ends: 508 [2020-12-09 17:59:12,876 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:12,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-09 17:59:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-12-09 17:59:12,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-12-09 17:59:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-12-09 17:59:12,895 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-12-09 17:59:12,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:12,896 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-12-09 17:59:12,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:59:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-12-09 17:59:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 17:59:12,897 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:12,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:59:12,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 17:59:12,897 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:12,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1081020179, now seen corresponding path program 1 times [2020-12-09 17:59:12,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:12,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346968577] [2020-12-09 17:59:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:12,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346968577] [2020-12-09 17:59:12,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:59:12,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 17:59:12,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385625608] [2020-12-09 17:59:12,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:59:12,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:12,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:59:12,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:12,936 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-12-09 17:59:12,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:12,946 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-12-09 17:59:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:59:12,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-09 17:59:12,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:12,950 INFO L225 Difference]: With dead ends: 504 [2020-12-09 17:59:12,950 INFO L226 Difference]: Without dead ends: 504 [2020-12-09 17:59:12,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-12-09 17:59:12,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-12-09 17:59:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-12-09 17:59:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-12-09 17:59:12,963 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-12-09 17:59:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:12,964 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-12-09 17:59:12,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:59:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-12-09 17:59:12,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 17:59:12,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:12,965 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:59:12,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 17:59:12,965 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:12,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:12,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1189355661, now seen corresponding path program 1 times [2020-12-09 17:59:12,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:12,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637396393] [2020-12-09 17:59:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:13,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637396393] [2020-12-09 17:59:13,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781205410] [2020-12-09 17:59:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:59:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:13,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 17:59:13,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 17:59:13,137 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:13,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 17:59:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:13,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1086190254] [2020-12-09 17:59:13,169 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:269) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:380) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 17:59:13,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 17:59:13,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2020-12-09 17:59:13,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183482753] [2020-12-09 17:59:13,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 17:59:13,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:13,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 17:59:13,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-09 17:59:13,172 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 10 states. [2020-12-09 17:59:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:13,323 INFO L93 Difference]: Finished difference Result 1250 states and 3210 transitions. [2020-12-09 17:59:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 17:59:13,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-12-09 17:59:13,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:13,333 INFO L225 Difference]: With dead ends: 1250 [2020-12-09 17:59:13,333 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 17:59:13,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-12-09 17:59:13,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 17:59:13,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 904. [2020-12-09 17:59:13,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-12-09 17:59:13,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2416 transitions. [2020-12-09 17:59:13,370 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2416 transitions. Word has length 14 [2020-12-09 17:59:13,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:13,370 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 2416 transitions. [2020-12-09 17:59:13,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 17:59:13,370 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2416 transitions. [2020-12-09 17:59:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 17:59:13,372 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:13,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:59:13,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 17:59:13,574 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:13,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:13,575 INFO L82 PathProgramCache]: Analyzing trace with hash 138770633, now seen corresponding path program 1 times [2020-12-09 17:59:13,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:13,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898801056] [2020-12-09 17:59:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:13,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898801056] [2020-12-09 17:59:13,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:59:13,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 17:59:13,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826019523] [2020-12-09 17:59:13,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 17:59:13,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:13,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 17:59:13,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 17:59:13,709 INFO L87 Difference]: Start difference. First operand 904 states and 2416 transitions. Second operand 3 states. [2020-12-09 17:59:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:13,739 INFO L93 Difference]: Finished difference Result 439 states and 991 transitions. [2020-12-09 17:59:13,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 17:59:13,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-09 17:59:13,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:13,743 INFO L225 Difference]: With dead ends: 439 [2020-12-09 17:59:13,743 INFO L226 Difference]: Without dead ends: 435 [2020-12-09 17:59:13,743 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 [2020-12-09 17:59:13,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-12-09 17:59:13,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 403. [2020-12-09 17:59:13,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-12-09 17:59:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 899 transitions. [2020-12-09 17:59:13,755 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 899 transitions. Word has length 16 [2020-12-09 17:59:13,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:13,755 INFO L481 AbstractCegarLoop]: Abstraction has 403 states and 899 transitions. [2020-12-09 17:59:13,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 17:59:13,755 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 899 transitions. [2020-12-09 17:59:13,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 17:59:13,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:13,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:59:13,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 17:59:13,756 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:13,756 INFO L82 PathProgramCache]: Analyzing trace with hash -612752567, now seen corresponding path program 1 times [2020-12-09 17:59:13,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:13,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523124799] [2020-12-09 17:59:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:13,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:13,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523124799] [2020-12-09 17:59:13,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:59:13,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 17:59:13,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67526608] [2020-12-09 17:59:13,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 17:59:13,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:13,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 17:59:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 17:59:13,801 INFO L87 Difference]: Start difference. First operand 403 states and 899 transitions. Second operand 5 states. [2020-12-09 17:59:13,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:13,859 INFO L93 Difference]: Finished difference Result 563 states and 1255 transitions. [2020-12-09 17:59:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 17:59:13,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-09 17:59:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:13,864 INFO L225 Difference]: With dead ends: 563 [2020-12-09 17:59:13,864 INFO L226 Difference]: Without dead ends: 563 [2020-12-09 17:59:13,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 17:59:13,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-12-09 17:59:13,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 441. [2020-12-09 17:59:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-12-09 17:59:13,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 990 transitions. [2020-12-09 17:59:13,880 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 990 transitions. Word has length 17 [2020-12-09 17:59:13,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:13,881 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 990 transitions. [2020-12-09 17:59:13,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 17:59:13,881 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 990 transitions. [2020-12-09 17:59:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 17:59:13,882 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:13,882 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] [2020-12-09 17:59:13,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 17:59:13,882 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:13,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:13,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1891121835, now seen corresponding path program 1 times [2020-12-09 17:59:13,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:13,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169948183] [2020-12-09 17:59:13,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 17:59:14,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 17:59:14,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169948183] [2020-12-09 17:59:14,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 17:59:14,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-09 17:59:14,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978243476] [2020-12-09 17:59:14,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 17:59:14,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 17:59:14,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 17:59:14,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-12-09 17:59:14,200 INFO L87 Difference]: Start difference. First operand 441 states and 990 transitions. Second operand 13 states. [2020-12-09 17:59:14,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 17:59:14,815 INFO L93 Difference]: Finished difference Result 839 states and 1836 transitions. [2020-12-09 17:59:14,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-09 17:59:14,816 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 21 [2020-12-09 17:59:14,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 17:59:14,820 INFO L225 Difference]: With dead ends: 839 [2020-12-09 17:59:14,820 INFO L226 Difference]: Without dead ends: 839 [2020-12-09 17:59:14,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2020-12-09 17:59:14,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2020-12-09 17:59:14,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 548. [2020-12-09 17:59:14,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-12-09 17:59:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 1256 transitions. [2020-12-09 17:59:14,834 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 1256 transitions. Word has length 21 [2020-12-09 17:59:14,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 17:59:14,834 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 1256 transitions. [2020-12-09 17:59:14,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 17:59:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 1256 transitions. [2020-12-09 17:59:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 17:59:14,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 17:59:14,835 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 17:59:14,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 17:59:14,835 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-09 17:59:14,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 17:59:14,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1326321507, now seen corresponding path program 1 times [2020-12-09 17:59:14,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 17:59:14,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003190563] [2020-12-09 17:59:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 17:59:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:59:14,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:59:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 17:59:14,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 17:59:14,944 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 17:59:14,944 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 17:59:14,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 17:59:15,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:59:15 BasicIcfg [2020-12-09 17:59:15,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 17:59:15,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 17:59:15,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 17:59:15,007 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 17:59:15,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:59:04" (3/4) ... [2020-12-09 17:59:15,009 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 17:59:15,071 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53405bae-d58b-49d0-9155-fcce202c3f2e/bin/utaipan/witness.graphml [2020-12-09 17:59:15,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 17:59:15,073 INFO L168 Benchmark]: Toolchain (without parser) took 11735.20 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 77.2 MB in the beginning and 118.7 MB in the end (delta: -41.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,073 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 117.4 MB. Free memory is still 95.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 17:59:15,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.77 ms. Allocated memory is still 117.4 MB. Free memory was 76.9 MB in the beginning and 45.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.85 ms. Allocated memory is still 117.4 MB. Free memory was 94.1 MB in the beginning and 92.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,074 INFO L168 Benchmark]: Boogie Preprocessor took 32.55 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 89.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,075 INFO L168 Benchmark]: RCFGBuilder took 414.87 ms. Allocated memory is still 117.4 MB. Free memory was 89.9 MB in the beginning and 57.1 MB in the end (delta: 32.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,076 INFO L168 Benchmark]: TraceAbstraction took 10643.59 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 56.4 MB in the beginning and 128.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 68.7 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,076 INFO L168 Benchmark]: Witness Printer took 64.31 ms. Allocated memory is still 172.0 MB. Free memory was 128.2 MB in the beginning and 118.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 17:59:15,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 117.4 MB. Free memory is still 95.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.77 ms. Allocated memory is still 117.4 MB. Free memory was 76.9 MB in the beginning and 45.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.85 ms. Allocated memory is still 117.4 MB. Free memory was 94.1 MB in the beginning and 92.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.55 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 89.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 414.87 ms. Allocated memory is still 117.4 MB. Free memory was 89.9 MB in the beginning and 57.1 MB in the end (delta: 32.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10643.59 ms. Allocated memory was 117.4 MB in the beginning and 172.0 MB in the end (delta: 54.5 MB). Free memory was 56.4 MB in the beginning and 128.2 MB in the end (delta: -71.8 MB). Peak memory consumption was 68.7 MB. Max. memory is 16.1 GB. * Witness Printer took 64.31 ms. Allocated memory is still 172.0 MB. Free memory was 128.2 MB in the beginning and 118.7 MB in the end (delta: 9.4 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 5014 VarBasedMoverChecksPositive, 94 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 65 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 372 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.9s, 150 PlacesBefore, 40 PlacesAfterwards, 155 TransitionsBefore, 41 TransitionsAfterwards, 6764 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 4 ChoiceCompositions, 143 TotalNumberOfCompositions, 12291 MoverChecksTotal - CounterExampleResult [Line: 941]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(5)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1021] 0 pthread_t id1, id2; [L1023] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={15:0}, flag=0, m={7:0}, top=0] [L990] 1 int i; [L991] 1 unsigned int tmp; [L992] 1 i=0 VAL [arr={15:0}, flag=0, m={7:0}, top=0] [L1024] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={15:0}, flag=0, m={7:0}, top=0] [L1006] 2 int i; [L1007] 2 i=0 VAL [arr={15:0}, flag=0, m={7:0}, top=0] [L992] COND TRUE 1 i<(5) [L995] 1 tmp = __VERIFIER_nondet_uint() [L23] COND FALSE 1 !(!cond) [L962] COND FALSE 1 !(top==(5)) [L954] 1 return top; [L969] 1 stack[get_top()] = x [L946] 1 top++ [L972] 1 return 0; [L997] COND FALSE 1 !(push(arr,tmp)==(-1)) [L999] 1 flag=(1) VAL [arr={15:0}, flag=1, m={7:0}, top=1] [L992] 1 i++ VAL [arr={15:0}, flag=1, m={7:0}, top=1] [L1007] COND TRUE 2 i<(5) [L1010] COND TRUE 2 \read(flag) [L954] 2 return top; [L976] COND FALSE 2 !(get_top()==0) [L950] 2 top-- VAL [arr={15:0}, flag=1, m={7:0}, top=0] [L954] 2 return top; [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1012] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1007] 2 i++ VAL [arr={15:0}, flag=1, m={7:0}, top=0] [L1007] COND TRUE 2 i<(5) [L1010] COND TRUE 2 \read(flag) [L954] 2 return top; [L976] COND TRUE 2 get_top()==0 [L979] 2 return (-2); [L1012] COND TRUE 2 !(pop(arr)!=(-2)) [L941] 2 reach_error() VAL [arr={15:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 144 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.4s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.9s, HoareTripleCheckerStatistics: 349 SDtfs, 435 SDslu, 1012 SDs, 0 SdLazy, 765 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=904occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 984 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 9691 SizeOfPredicates, 1 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3/9 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...