./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 13f29567e5bda53c24647cdbec0951bfcde74176 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 03:17:15,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:17:15,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:17:15,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:17:15,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:17:15,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:17:15,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:17:15,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:17:15,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:17:15,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:17:15,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:17:15,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:17:15,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:17:15,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:17:15,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:17:15,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:17:15,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:17:15,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:17:15,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:17:15,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:17:15,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:17:15,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:17:15,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:17:15,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:17:15,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:17:15,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:17:15,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:17:15,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:17:15,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:17:15,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:17:15,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:17:15,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:17:15,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:17:15,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:17:15,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:17:15,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:17:15,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:17:15,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:17:15,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:17:15,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:17:15,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:17:15,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:17:16,017 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:17:16,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:17:16,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:17:16,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:17:16,024 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:17:16,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:17:16,025 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:17:16,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:17:16,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:17:16,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:17:16,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:17:16,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:17:16,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:17:16,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:17:16,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:17:16,028 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:17:16,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:17:16,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:17:16,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:17:16,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:17:16,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:17:16,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:17:16,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:17:16,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:17:16,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:17:16,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:17:16,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:17:16,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:17:16,032 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:17:16,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13f29567e5bda53c24647cdbec0951bfcde74176 [2020-11-28 03:17:16,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:17:16,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:17:16,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:17:16,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:17:16,403 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:17:16,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/../../sv-benchmarks/c/pthread/stack_longer-1.i [2020-11-28 03:17:16,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/data/6d794d1d3/21166af69d9849cfae560b44e7d92157/FLAG20b185467 [2020-11-28 03:17:17,258 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:17:17,259 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/sv-benchmarks/c/pthread/stack_longer-1.i [2020-11-28 03:17:17,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/data/6d794d1d3/21166af69d9849cfae560b44e7d92157/FLAG20b185467 [2020-11-28 03:17:17,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/data/6d794d1d3/21166af69d9849cfae560b44e7d92157 [2020-11-28 03:17:17,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:17:17,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:17:17,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:17,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:17:17,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:17:17,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f27dcac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:17, skipping insertion in model container [2020-11-28 03:17:17,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:17:17" (1/1) ... [2020-11-28 03:17:17,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:17:17,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:17:18,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:18,114 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:17:18,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:17:18,419 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:17:18,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18 WrapperNode [2020-11-28 03:17:18,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:17:18,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:18,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:17:18,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:17:18,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:17:18,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:17:18,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:17:18,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:17:18,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... [2020-11-28 03:17:18,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:17:18,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:17:18,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:17:18,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:17:18,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/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 [2020-11-28 03:17:18,694 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-11-28 03:17:18,695 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-11-28 03:17:18,695 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-11-28 03:17:18,696 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-11-28 03:17:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:17:18,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:17:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:17:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:17:18,698 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-28 03:17:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:17:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:17:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:17:18,702 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 03:17:19,489 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:17:19,489 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-11-28 03:17:19,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:19 BoogieIcfgContainer [2020-11-28 03:17:19,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:17:19,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:17:19,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:17:19,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:17:19,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:17:17" (1/3) ... [2020-11-28 03:17:19,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9dff11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:19, skipping insertion in model container [2020-11-28 03:17:19,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:17:18" (2/3) ... [2020-11-28 03:17:19,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9dff11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:17:19, skipping insertion in model container [2020-11-28 03:17:19,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:19" (3/3) ... [2020-11-28 03:17:19,505 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-11-28 03:17:19,528 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 03:17:19,529 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:17:19,534 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 03:17:19,535 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 03:17:19,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,574 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,574 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,574 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,574 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,575 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,575 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,575 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,575 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,576 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,576 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,576 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,576 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,577 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,577 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,577 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,577 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,578 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,578 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,579 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,579 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,580 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,581 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,581 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,582 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,582 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,582 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,583 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,584 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,584 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,584 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,584 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,585 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,585 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,586 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,586 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,586 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,586 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,587 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,587 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,587 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,588 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,588 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,588 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,589 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,589 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,589 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,589 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,590 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,590 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,590 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,590 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,591 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,591 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,592 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,592 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,593 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,593 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,594 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,594 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,595 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,595 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,598 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,599 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,599 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,599 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,599 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,600 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,600 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,601 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,603 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,603 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,604 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,606 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,607 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,607 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,608 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,608 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,608 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,609 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,610 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,610 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,613 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,613 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,613 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,614 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,614 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,614 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,614 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,615 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,615 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,615 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,616 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,617 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,618 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,619 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,619 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,620 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,620 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,620 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,624 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,625 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,625 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,625 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,626 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,626 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,626 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,627 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,628 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,628 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,628 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,628 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,629 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,629 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,629 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,629 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,630 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,630 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,630 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,630 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,631 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,636 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,637 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,637 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,637 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,637 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,637 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,638 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,639 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,639 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,640 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,640 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,640 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:17:19,649 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-28 03:17:19,662 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-28 03:17:19,694 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:17:19,694 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:17:19,694 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:17:19,700 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:17:19,700 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:17:19,701 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:17:19,701 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:17:19,701 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:17:19,728 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 03:17:19,730 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 159 transitions, 340 flow [2020-11-28 03:17:19,735 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 159 transitions, 340 flow [2020-11-28 03:17:19,737 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 340 flow [2020-11-28 03:17:19,865 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2020-11-28 03:17:19,866 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-28 03:17:19,877 INFO L80 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 159 events. 13/159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 443 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 123. Up to 3 conditions per place. [2020-11-28 03:17:19,891 INFO L116 LiptonReduction]: Number of co-enabled transitions 7732 [2020-11-28 03:17:21,807 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-28 03:17:23,623 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 03:17:23,759 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-28 03:17:24,238 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-11-28 03:17:24,583 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-11-28 03:17:24,741 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-28 03:17:26,024 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 132 [2020-11-28 03:17:26,499 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-28 03:17:26,517 INFO L131 LiptonReduction]: Checked pairs total: 12656 [2020-11-28 03:17:26,518 INFO L133 LiptonReduction]: Total number of compositions: 154 [2020-11-28 03:17:26,524 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-11-28 03:17:26,564 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-11-28 03:17:26,567 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-11-28 03:17:26,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:17:26,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:26,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:17:26,575 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:26,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1712809205, now seen corresponding path program 1 times [2020-11-28 03:17:26,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:26,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331749964] [2020-11-28 03:17:26,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:26,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331749964] [2020-11-28 03:17:26,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:26,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:26,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998000973] [2020-11-28 03:17:26,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:26,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:26,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:26,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:26,919 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-11-28 03:17:27,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:27,060 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-11-28 03:17:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:27,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-28 03:17:27,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:27,097 INFO L225 Difference]: With dead ends: 602 [2020-11-28 03:17:27,097 INFO L226 Difference]: Without dead ends: 580 [2020-11-28 03:17:27,099 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 [2020-11-28 03:17:27,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-11-28 03:17:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-11-28 03:17:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-11-28 03:17:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-11-28 03:17:27,242 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-11-28 03:17:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:27,243 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-11-28 03:17:27,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-11-28 03:17:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:17:27,246 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:27,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:27,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:17:27,247 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:27,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1187168640, now seen corresponding path program 1 times [2020-11-28 03:17:27,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:27,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108788203] [2020-11-28 03:17:27,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:27,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108788203] [2020-11-28 03:17:27,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:27,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:27,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953110102] [2020-11-28 03:17:27,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:27,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:27,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:27,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:27,360 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-11-28 03:17:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:27,397 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-11-28 03:17:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:27,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:17:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:27,404 INFO L225 Difference]: With dead ends: 530 [2020-11-28 03:17:27,404 INFO L226 Difference]: Without dead ends: 508 [2020-11-28 03:17:27,405 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 [2020-11-28 03:17:27,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-11-28 03:17:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-11-28 03:17:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-11-28 03:17:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-11-28 03:17:27,430 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-11-28 03:17:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:27,432 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-11-28 03:17:27,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-11-28 03:17:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:17:27,433 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:27,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:27,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:17:27,434 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:27,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:27,435 INFO L82 PathProgramCache]: Analyzing trace with hash -645541621, now seen corresponding path program 1 times [2020-11-28 03:17:27,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:27,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136439638] [2020-11-28 03:17:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:27,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136439638] [2020-11-28 03:17:27,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:27,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:17:27,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667714500] [2020-11-28 03:17:27,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:27,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:27,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:27,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:27,534 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-11-28 03:17:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:27,566 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-11-28 03:17:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:27,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-28 03:17:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:27,573 INFO L225 Difference]: With dead ends: 504 [2020-11-28 03:17:27,574 INFO L226 Difference]: Without dead ends: 504 [2020-11-28 03:17:27,574 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 [2020-11-28 03:17:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-11-28 03:17:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-11-28 03:17:27,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-11-28 03:17:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-11-28 03:17:27,604 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-11-28 03:17:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:27,604 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-11-28 03:17:27,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-11-28 03:17:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:17:27,607 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:27,607 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:27,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:17:27,608 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:27,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:27,608 INFO L82 PathProgramCache]: Analyzing trace with hash 285026319, now seen corresponding path program 1 times [2020-11-28 03:17:27,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:27,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505436678] [2020-11-28 03:17:27,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:27,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505436678] [2020-11-28 03:17:27,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897639044] [2020-11-28 03:17:27,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/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 [2020-11-28 03:17:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:27,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:17:27,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:28,024 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-11-28 03:17:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:28,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:17:28,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-11-28 03:17:28,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000927299] [2020-11-28 03:17:28,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-28 03:17:28,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:28,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-28 03:17:28,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:17:28,080 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 7 states. [2020-11-28 03:17:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:28,337 INFO L93 Difference]: Finished difference Result 940 states and 2424 transitions. [2020-11-28 03:17:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:17:28,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-28 03:17:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:28,358 INFO L225 Difference]: With dead ends: 940 [2020-11-28 03:17:28,358 INFO L226 Difference]: Without dead ends: 940 [2020-11-28 03:17:28,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:17:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2020-11-28 03:17:28,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 688. [2020-11-28 03:17:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2020-11-28 03:17:28,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1842 transitions. [2020-11-28 03:17:28,399 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1842 transitions. Word has length 14 [2020-11-28 03:17:28,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:28,399 INFO L481 AbstractCegarLoop]: Abstraction has 688 states and 1842 transitions. [2020-11-28 03:17:28,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-28 03:17:28,400 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1842 transitions. [2020-11-28 03:17:28,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:17:28,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:28,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:28,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:28,624 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:28,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:28,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1610706921, now seen corresponding path program 1 times [2020-11-28 03:17:28,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:28,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536130132] [2020-11-28 03:17:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:28,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:28,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536130132] [2020-11-28 03:17:28,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:28,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:17:28,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969536278] [2020-11-28 03:17:28,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:17:28,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:28,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:17:28,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:17:28,713 INFO L87 Difference]: Start difference. First operand 688 states and 1842 transitions. Second operand 3 states. [2020-11-28 03:17:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:28,762 INFO L93 Difference]: Finished difference Result 343 states and 775 transitions. [2020-11-28 03:17:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:17:28,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-28 03:17:28,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:28,766 INFO L225 Difference]: With dead ends: 343 [2020-11-28 03:17:28,767 INFO L226 Difference]: Without dead ends: 339 [2020-11-28 03:17:28,767 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 [2020-11-28 03:17:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-11-28 03:17:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 313. [2020-11-28 03:17:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-11-28 03:17:28,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 700 transitions. [2020-11-28 03:17:28,781 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 700 transitions. Word has length 16 [2020-11-28 03:17:28,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:28,781 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 700 transitions. [2020-11-28 03:17:28,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:17:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 700 transitions. [2020-11-28 03:17:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:17:28,782 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:28,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:17:28,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:17:28,783 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:28,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:28,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1867326303, now seen corresponding path program 1 times [2020-11-28 03:17:28,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:28,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208839172] [2020-11-28 03:17:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:28,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208839172] [2020-11-28 03:17:28,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:28,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:17:28,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456691322] [2020-11-28 03:17:28,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:17:28,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:17:28,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:17:28,887 INFO L87 Difference]: Start difference. First operand 313 states and 700 transitions. Second operand 5 states. [2020-11-28 03:17:28,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:28,988 INFO L93 Difference]: Finished difference Result 473 states and 1056 transitions. [2020-11-28 03:17:28,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:17:28,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-28 03:17:28,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:28,992 INFO L225 Difference]: With dead ends: 473 [2020-11-28 03:17:28,992 INFO L226 Difference]: Without dead ends: 473 [2020-11-28 03:17:28,993 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 [2020-11-28 03:17:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-11-28 03:17:29,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 351. [2020-11-28 03:17:29,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-11-28 03:17:29,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 791 transitions. [2020-11-28 03:17:29,009 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 791 transitions. Word has length 17 [2020-11-28 03:17:29,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:29,010 INFO L481 AbstractCegarLoop]: Abstraction has 351 states and 791 transitions. [2020-11-28 03:17:29,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:17:29,010 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 791 transitions. [2020-11-28 03:17:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:17:29,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:29,012 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] [2020-11-28 03:17:29,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:17:29,012 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:29,013 INFO L82 PathProgramCache]: Analyzing trace with hash -411284068, now seen corresponding path program 1 times [2020-11-28 03:17:29,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:29,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155489091] [2020-11-28 03:17:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:29,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:29,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155489091] [2020-11-28 03:17:29,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:29,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:17:29,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219124457] [2020-11-28 03:17:29,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:17:29,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:29,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:17:29,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:17:29,448 INFO L87 Difference]: Start difference. First operand 351 states and 791 transitions. Second operand 8 states. [2020-11-28 03:17:29,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:29,844 INFO L93 Difference]: Finished difference Result 653 states and 1454 transitions. [2020-11-28 03:17:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:17:29,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-11-28 03:17:29,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:29,851 INFO L225 Difference]: With dead ends: 653 [2020-11-28 03:17:29,851 INFO L226 Difference]: Without dead ends: 653 [2020-11-28 03:17:29,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:17:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-11-28 03:17:29,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 484. [2020-11-28 03:17:29,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-11-28 03:17:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 1129 transitions. [2020-11-28 03:17:29,917 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 1129 transitions. Word has length 21 [2020-11-28 03:17:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:29,918 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 1129 transitions. [2020-11-28 03:17:29,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:17:29,918 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 1129 transitions. [2020-11-28 03:17:29,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 03:17:29,921 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:29,921 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] [2020-11-28 03:17:29,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:17:29,921 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:29,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:29,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1129438590, now seen corresponding path program 2 times [2020-11-28 03:17:29,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:29,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440608966] [2020-11-28 03:17:29,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:30,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:30,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440608966] [2020-11-28 03:17:30,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:17:30,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:17:30,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367539419] [2020-11-28 03:17:30,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:17:30,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:30,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:17:30,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:17:30,300 INFO L87 Difference]: Start difference. First operand 484 states and 1129 transitions. Second operand 8 states. [2020-11-28 03:17:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:30,651 INFO L93 Difference]: Finished difference Result 779 states and 1769 transitions. [2020-11-28 03:17:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:17:30,652 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-11-28 03:17:30,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:30,659 INFO L225 Difference]: With dead ends: 779 [2020-11-28 03:17:30,659 INFO L226 Difference]: Without dead ends: 779 [2020-11-28 03:17:30,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:17:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2020-11-28 03:17:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 470. [2020-11-28 03:17:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-11-28 03:17:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 1092 transitions. [2020-11-28 03:17:30,682 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 1092 transitions. Word has length 21 [2020-11-28 03:17:30,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:30,682 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 1092 transitions. [2020-11-28 03:17:30,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:17:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 1092 transitions. [2020-11-28 03:17:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:17:30,684 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:30,684 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-28 03:17:30,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:17:30,684 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:30,685 INFO L82 PathProgramCache]: Analyzing trace with hash 910586131, now seen corresponding path program 2 times [2020-11-28 03:17:30,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:30,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344803705] [2020-11-28 03:17:30,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:30,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:30,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344803705] [2020-11-28 03:17:30,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214912279] [2020-11-28 03:17:30,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:30,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 03:17:30,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 03:17:30,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:17:30,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:30,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:17:30,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-28 03:17:30,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706199799] [2020-11-28 03:17:30,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 03:17:30,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:30,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 03:17:30,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:17:30,976 INFO L87 Difference]: Start difference. First operand 470 states and 1092 transitions. Second operand 9 states. [2020-11-28 03:17:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:31,152 INFO L93 Difference]: Finished difference Result 778 states and 1761 transitions. [2020-11-28 03:17:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:17:31,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-11-28 03:17:31,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:31,160 INFO L225 Difference]: With dead ends: 778 [2020-11-28 03:17:31,160 INFO L226 Difference]: Without dead ends: 778 [2020-11-28 03:17:31,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:17:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2020-11-28 03:17:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 560. [2020-11-28 03:17:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-11-28 03:17:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1291 transitions. [2020-11-28 03:17:31,190 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1291 transitions. Word has length 22 [2020-11-28 03:17:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:31,193 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 1291 transitions. [2020-11-28 03:17:31,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 03:17:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1291 transitions. [2020-11-28 03:17:31,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:17:31,195 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:31,195 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] [2020-11-28 03:17:31,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:31,408 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:31,409 INFO L82 PathProgramCache]: Analyzing trace with hash 979235810, now seen corresponding path program 1 times [2020-11-28 03:17:31,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:31,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740478235] [2020-11-28 03:17:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:31,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:17:31,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740478235] [2020-11-28 03:17:31,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149582715] [2020-11-28 03:17:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:17:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:17:31,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:17:31,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:17:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 03:17:31,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:17:31,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-11-28 03:17:31,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634665558] [2020-11-28 03:17:31,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:17:31,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:17:31,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:17:31,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:17:31,729 INFO L87 Difference]: Start difference. First operand 560 states and 1291 transitions. Second operand 6 states. [2020-11-28 03:17:31,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:17:31,864 INFO L93 Difference]: Finished difference Result 775 states and 1744 transitions. [2020-11-28 03:17:31,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:17:31,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-11-28 03:17:31,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:17:31,873 INFO L225 Difference]: With dead ends: 775 [2020-11-28 03:17:31,873 INFO L226 Difference]: Without dead ends: 775 [2020-11-28 03:17:31,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:17:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2020-11-28 03:17:31,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 586. [2020-11-28 03:17:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-11-28 03:17:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1362 transitions. [2020-11-28 03:17:31,899 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1362 transitions. Word has length 24 [2020-11-28 03:17:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:17:31,900 INFO L481 AbstractCegarLoop]: Abstraction has 586 states and 1362 transitions. [2020-11-28 03:17:31,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:17:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1362 transitions. [2020-11-28 03:17:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:17:31,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:17:31,901 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] [2020-11-28 03:17:32,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-28 03:17:32,124 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:17:32,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:17:32,125 INFO L82 PathProgramCache]: Analyzing trace with hash 979237801, now seen corresponding path program 1 times [2020-11-28 03:17:32,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:17:32,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070386115] [2020-11-28 03:17:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:17:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:32,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:17:32,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:17:32,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:17:32,308 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:17:32,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:17:32,309 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-28 03:17:32,310 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-28 03:17:32,320 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [623] [623] L994-->L958: Formula: (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In1603278694 4294967296))) (and (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1603278694| |~#arr~0.offset_In1603278694|) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1603278694 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1603278694|) (< .cse0 400) (= |~#arr~0.base_In1603278694| |t1Thread1of1ForFork0_push_#in~stack.base_Out1603278694|) (= |t1Thread1of1ForFork0_push_#in~x_Out1603278694| .cse0) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1603278694| 1))) InVars {~#arr~0.offset=|~#arr~0.offset_In1603278694|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1603278694, ~#arr~0.base=|~#arr~0.base_In1603278694|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1603278694|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1603278694|, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out1603278694|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1603278694, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1603278694|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out1603278694|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1603278694, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1603278694, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1603278694|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1603278694, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1603278694, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1603278694|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1603278694|, ~#arr~0.base=|~#arr~0.base_In1603278694|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_push_#t~ret38] because there is no mapped edge [2020-11-28 03:17:32,336 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [641] [641] L1010-3-->L1005-6: Formula: (and (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In545490851| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out545490851|) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In545490851| 2147483648)) (<= |t2Thread1of1ForFork1_#t~ret50_In545490851| 2147483647) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In545490851| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out545490851|) (= |#pthreadsMutex_Out545490851| (store |#pthreadsMutex_In545490851| |~#m~0.base_In545490851| (store (select |#pthreadsMutex_In545490851| |~#m~0.base_In545490851|) |~#m~0.offset_In545490851| 0))) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret50_In545490851|)) (= (+ t2Thread1of1ForFork1_~i~1_In545490851 1) t2Thread1of1ForFork1_~i~1_Out545490851)) InVars {#pthreadsMutex=|#pthreadsMutex_In545490851|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In545490851|, ~#m~0.base=|~#m~0.base_In545490851|, ~#m~0.offset=|~#m~0.offset_In545490851|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In545490851|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In545490851, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In545490851|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out545490851|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out545490851|, ~#m~0.base=|~#m~0.base_In545490851|, ~#m~0.offset=|~#m~0.offset_In545490851|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out545490851|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out545490851|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out545490851, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out545490851|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_reach_error_#t~nondet2.base, t2Thread1of1ForFork1_#t~post48, t2Thread1of1ForFork1_#t~ret50, t2Thread1of1ForFork1_~i~1, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-11-28 03:17:32,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:17:32 BasicIcfg [2020-11-28 03:17:32,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:17:32,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:17:32,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:17:32,427 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:17:32,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:17:19" (3/4) ... [2020-11-28 03:17:32,435 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:17:32,441 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [623] [623] L994-->L958: Formula: (let ((.cse0 (mod t1Thread1of1ForFork0_~tmp~0_In1603278694 4294967296))) (and (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1603278694| |~#arr~0.offset_In1603278694|) (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1603278694 |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1603278694|) (< .cse0 400) (= |~#arr~0.base_In1603278694| |t1Thread1of1ForFork0_push_#in~stack.base_Out1603278694|) (= |t1Thread1of1ForFork0_push_#in~x_Out1603278694| .cse0) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1603278694| 1))) InVars {~#arr~0.offset=|~#arr~0.offset_In1603278694|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1603278694, ~#arr~0.base=|~#arr~0.base_In1603278694|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1603278694|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1603278694|, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out1603278694|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1603278694, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1603278694|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out1603278694|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1603278694, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out1603278694, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1603278694|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1603278694, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1603278694, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_Out1603278694|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1603278694|, ~#arr~0.base=|~#arr~0.base_In1603278694|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_push_#t~ret38] because there is no mapped edge [2020-11-28 03:17:32,453 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [641] [641] L1010-3-->L1005-6: Formula: (and (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In545490851| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out545490851|) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In545490851| 2147483648)) (<= |t2Thread1of1ForFork1_#t~ret50_In545490851| 2147483647) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In545490851| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out545490851|) (= |#pthreadsMutex_Out545490851| (store |#pthreadsMutex_In545490851| |~#m~0.base_In545490851| (store (select |#pthreadsMutex_In545490851| |~#m~0.base_In545490851|) |~#m~0.offset_In545490851| 0))) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret50_In545490851|)) (= (+ t2Thread1of1ForFork1_~i~1_In545490851 1) t2Thread1of1ForFork1_~i~1_Out545490851)) InVars {#pthreadsMutex=|#pthreadsMutex_In545490851|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In545490851|, ~#m~0.base=|~#m~0.base_In545490851|, ~#m~0.offset=|~#m~0.offset_In545490851|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In545490851|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In545490851, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In545490851|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out545490851|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out545490851|, ~#m~0.base=|~#m~0.base_In545490851|, ~#m~0.offset=|~#m~0.offset_In545490851|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out545490851|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out545490851|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out545490851, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out545490851|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_reach_error_#t~nondet2.base, t2Thread1of1ForFork1_#t~post48, t2Thread1of1ForFork1_#t~ret50, t2Thread1of1ForFork1_~i~1, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-11-28 03:17:32,557 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3bfd6b1e-0971-447e-9cac-3add5e0802c2/bin/uautomizer/witness.graphml [2020-11-28 03:17:32,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:17:32,559 INFO L168 Benchmark]: Toolchain (without parser) took 15113.71 ms. Allocated memory was 98.6 MB in the beginning and 262.1 MB in the end (delta: 163.6 MB). Free memory was 69.2 MB in the beginning and 129.7 MB in the end (delta: -60.4 MB). Peak memory consumption was 102.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,559 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:17:32,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 969.93 ms. Allocated memory was 98.6 MB in the beginning and 140.5 MB in the end (delta: 41.9 MB). Free memory was 69.0 MB in the beginning and 97.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.03 ms. Allocated memory is still 140.5 MB. Free memory was 97.1 MB in the beginning and 94.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,560 INFO L168 Benchmark]: Boogie Preprocessor took 58.95 ms. Allocated memory is still 140.5 MB. Free memory was 94.9 MB in the beginning and 92.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,561 INFO L168 Benchmark]: RCFGBuilder took 902.53 ms. Allocated memory is still 140.5 MB. Free memory was 92.9 MB in the beginning and 97.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,561 INFO L168 Benchmark]: TraceAbstraction took 12932.41 ms. Allocated memory was 140.5 MB in the beginning and 262.1 MB in the end (delta: 121.6 MB). Free memory was 97.9 MB in the beginning and 140.2 MB in the end (delta: -42.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,562 INFO L168 Benchmark]: Witness Printer took 130.83 ms. Allocated memory is still 262.1 MB. Free memory was 140.2 MB in the beginning and 129.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:17:32,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 969.93 ms. Allocated memory was 98.6 MB in the beginning and 140.5 MB in the end (delta: 41.9 MB). Free memory was 69.0 MB in the beginning and 97.1 MB in the end (delta: -28.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.03 ms. Allocated memory is still 140.5 MB. Free memory was 97.1 MB in the beginning and 94.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.95 ms. Allocated memory is still 140.5 MB. Free memory was 94.9 MB in the beginning and 92.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 902.53 ms. Allocated memory is still 140.5 MB. Free memory was 92.9 MB in the beginning and 97.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12932.41 ms. Allocated memory was 140.5 MB in the beginning and 262.1 MB in the end (delta: 121.6 MB). Free memory was 97.9 MB in the beginning and 140.2 MB in the end (delta: -42.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. * Witness Printer took 130.83 ms. Allocated memory is still 262.1 MB. Free memory was 140.2 MB in the beginning and 129.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5451 VarBasedMoverChecksPositive, 106 VarBasedMoverChecksNegative, 42 SemBasedMoverChecksPositive, 64 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 289 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.7s, 152 PlacesBefore, 40 PlacesAfterwards, 159 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 6 ChoiceCompositions, 154 TotalNumberOfCompositions, 12656 MoverChecksTotal - CounterExampleResult [Line: 20]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(400)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1019] 0 pthread_t id1, id2; [L1021] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={11:0}, flag=0, m={6:0}, top=0] [L1022] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={11:0}, flag=0, m={6:0}, top=0] [L988] 1 int i; [L989] 1 unsigned int tmp; [L990] 1 i=0 VAL [arr={11:0}, flag=0, m={6:0}, top=0] [L990] COND TRUE 1 i<(400) [L993] 1 tmp = __VERIFIER_nondet_uint() [L960] COND FALSE 1 !(top==(400)) [L952] 1 return top; [L967] 1 stack[get_top()] = x VAL [arr={11:0}, flag=0, m={6:0}, top=0] [L1004] 2 int i; [L1005] 2 i=0 VAL [arr={11:0}, flag=0, m={6:0}, top=0] [L944] 1 top++ [L970] 1 return 0; [L995] COND FALSE 1 !(push(arr,tmp)==(-1)) [L997] 1 flag=(1) VAL [arr={11:0}, flag=1, m={6:0}, top=1] [L990] 1 i++ VAL [arr={11:0}, flag=1, m={6:0}, top=1] [L1005] COND TRUE 2 i<(400) [L1008] COND TRUE 2 \read(flag) [L952] 2 return top; VAL [arr={11:0}, flag=1, m={6:0}, top=1] [L974] COND FALSE 2 !(get_top()==0) [L948] 2 top-- VAL [arr={11:0}, flag=1, m={6:0}, top=0] [L952] 2 return top; [L982] EXPR 2 stack[get_top()] [L982] 2 return stack[get_top()]; [L1005] COND TRUE 2 i<(400) [L1008] COND TRUE 2 \read(flag) [L952] 2 return top; [L974] COND TRUE 2 get_top()==0 [L977] 2 return (-2); [L1010] COND TRUE 2 !(pop(arr)!=(-2)) [L20] COND FALSE 2 !(0) [L20] 2 __assert_fail ("0", "stack_longer-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={11:0}, flag=1, m={6:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 146 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 447 SDtfs, 551 SDslu, 966 SDs, 0 SdLazy, 491 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=688occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1478 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 30714 SizeOfPredicates, 8 NumberOfNonLiveVariables, 578 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 10/40 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...