./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.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_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:10:26,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:10:26,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:10:26,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:10:26,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:10:26,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:10:26,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:10:26,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:10:26,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:10:26,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:10:26,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:10:26,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:10:26,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:10:26,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:10:26,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:10:26,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:10:26,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:10:26,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:10:26,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:10:26,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:10:26,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:10:26,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:10:26,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:10:26,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:10:26,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:10:26,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:10:26,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:10:26,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:10:26,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:10:26,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:10:26,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:10:26,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:10:26,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:10:26,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:10:26,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:10:26,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:10:26,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:10:26,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:10:26,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:10:26,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:10:26,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:10:26,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:10:27,040 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:10:27,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:10:27,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:10:27,046 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:10:27,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:10:27,047 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:10:27,047 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:10:27,047 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:10:27,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:10:27,048 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:10:27,049 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:10:27,050 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:10:27,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:10:27,050 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:10:27,051 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:10:27,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:10:27,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:10:27,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:10:27,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:10:27,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:10:27,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:10:27,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:10:27,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:10:27,054 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:10:27,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:10:27,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:10:27,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:10:27,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:10:27,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:10:27,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:10:27,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:10:27,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:10:27,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:10:27,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:10:27,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:10:27,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:10:27,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:10:27,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:10:27,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:10:27,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:10:27,061 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e [2020-11-30 02:10:27,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:10:27,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:10:27,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:10:27,474 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:10:27,477 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:10:27,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/../../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-11-30 02:10:27,571 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/data/021e1fbd6/eb3e57b19db14648bd75bda00bb45eb1/FLAG46118a892 [2020-11-30 02:10:28,379 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:10:28,387 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-11-30 02:10:28,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/data/021e1fbd6/eb3e57b19db14648bd75bda00bb45eb1/FLAG46118a892 [2020-11-30 02:10:28,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/data/021e1fbd6/eb3e57b19db14648bd75bda00bb45eb1 [2020-11-30 02:10:28,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:10:28,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:10:28,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:10:28,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:10:28,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:10:28,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:10:28" (1/1) ... [2020-11-30 02:10:28,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e34600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:28, skipping insertion in model container [2020-11-30 02:10:28,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:10:28" (1/1) ... [2020-11-30 02:10:28,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:10:28,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:10:29,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:10:29,267 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:10:29,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:10:29,448 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:10:29,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29 WrapperNode [2020-11-30 02:10:29,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:10:29,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:10:29,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:10:29,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:10:29,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:10:29,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:10:29,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:10:29,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:10:29,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... [2020-11-30 02:10:29,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:10:29,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:10:29,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:10:29,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:10:29,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-11-30 02:10:29,645 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-11-30 02:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:10:29,645 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-11-30 02:10:29,646 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-11-30 02:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-30 02:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:10:29,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:10:29,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:10:29,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:10:29,650 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 02:10:30,257 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:10:30,257 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 02:10:30,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:10:30 BoogieIcfgContainer [2020-11-30 02:10:30,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:10:30,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:10:30,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:10:30,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:10:30,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:10:28" (1/3) ... [2020-11-30 02:10:30,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8f5fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:10:30, skipping insertion in model container [2020-11-30 02:10:30,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:10:29" (2/3) ... [2020-11-30 02:10:30,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8f5fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:10:30, skipping insertion in model container [2020-11-30 02:10:30,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:10:30" (3/3) ... [2020-11-30 02:10:30,271 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-11-30 02:10:30,285 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 02:10:30,285 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:10:30,292 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 02:10:30,293 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 02:10:30,326 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,326 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,327 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,327 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,327 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,327 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,328 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,328 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,329 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,329 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,329 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,329 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,330 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,330 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,331 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,331 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,332 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,332 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,332 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,332 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,333 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,333 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,333 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,334 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,334 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,334 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,337 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,338 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,338 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,338 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,338 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,338 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,339 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,339 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,349 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,350 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,350 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,350 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,350 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,350 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,351 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:10:30,361 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-30 02:10:30,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 02:10:30,414 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:10:30,414 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:10:30,415 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:10:30,415 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:10:30,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:10:30,415 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:10:30,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:10:30,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:10:30,435 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 02:10:30,438 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 98 transitions, 218 flow [2020-11-30 02:10:30,441 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 98 transitions, 218 flow [2020-11-30 02:10:30,444 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 98 transitions, 218 flow [2020-11-30 02:10:30,521 INFO L129 PetriNetUnfolder]: 8/98 cut-off events. [2020-11-30 02:10:30,521 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-30 02:10:30,528 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 98 events. 8/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2020-11-30 02:10:30,532 INFO L116 LiptonReduction]: Number of co-enabled transitions 1376 [2020-11-30 02:10:33,342 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-30 02:10:33,984 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-11-30 02:10:34,151 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-30 02:10:34,273 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-30 02:10:35,171 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2020-11-30 02:10:35,520 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-11-30 02:10:35,571 INFO L131 LiptonReduction]: Checked pairs total: 4493 [2020-11-30 02:10:35,571 INFO L133 LiptonReduction]: Total number of compositions: 94 [2020-11-30 02:10:35,578 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 88 flow [2020-11-30 02:10:35,608 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2020-11-30 02:10:35,610 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-11-30 02:10:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 02:10:35,617 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:10:35,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 02:10:35,619 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:10:35,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:10:35,627 INFO L82 PathProgramCache]: Analyzing trace with hash 370145274, now seen corresponding path program 1 times [2020-11-30 02:10:35,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:10:35,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516089538] [2020-11-30 02:10:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:10:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:10:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:10:35,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516089538] [2020-11-30 02:10:35,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:10:35,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:10:35,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080064331] [2020-11-30 02:10:35,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:10:35,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:10:36,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:10:36,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:10:36,021 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2020-11-30 02:10:36,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:10:36,071 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2020-11-30 02:10:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:10:36,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 02:10:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:10:36,096 INFO L225 Difference]: With dead ends: 197 [2020-11-30 02:10:36,104 INFO L226 Difference]: Without dead ends: 167 [2020-11-30 02:10:36,107 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 [2020-11-30 02:10:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-11-30 02:10:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-11-30 02:10:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-11-30 02:10:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2020-11-30 02:10:36,241 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2020-11-30 02:10:36,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:10:36,241 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2020-11-30 02:10:36,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:10:36,242 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2020-11-30 02:10:36,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:10:36,243 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:10:36,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:10:36,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:10:36,244 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:10:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:10:36,248 INFO L82 PathProgramCache]: Analyzing trace with hash -791989179, now seen corresponding path program 1 times [2020-11-30 02:10:36,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:10:36,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527349167] [2020-11-30 02:10:36,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:10:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:10:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:10:36,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527349167] [2020-11-30 02:10:36,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:10:36,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:10:36,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835173699] [2020-11-30 02:10:36,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:10:36,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:10:36,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:10:36,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:10:36,399 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2020-11-30 02:10:36,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:10:36,428 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2020-11-30 02:10:36,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:10:36,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 02:10:36,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:10:36,432 INFO L225 Difference]: With dead ends: 182 [2020-11-30 02:10:36,432 INFO L226 Difference]: Without dead ends: 157 [2020-11-30 02:10:36,433 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 [2020-11-30 02:10:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-30 02:10:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2020-11-30 02:10:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-11-30 02:10:36,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2020-11-30 02:10:36,449 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2020-11-30 02:10:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:10:36,450 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2020-11-30 02:10:36,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:10:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2020-11-30 02:10:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:10:36,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:10:36,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:10:36,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:10:36,453 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:10:36,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:10:36,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1802702046, now seen corresponding path program 1 times [2020-11-30 02:10:36,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:10:36,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44144284] [2020-11-30 02:10:36,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:10:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:10:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:10:36,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44144284] [2020-11-30 02:10:36,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:10:36,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:10:36,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372768319] [2020-11-30 02:10:36,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:10:36,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:10:36,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:10:36,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:10:36,505 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2020-11-30 02:10:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:10:36,586 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2020-11-30 02:10:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:10:36,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-30 02:10:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:10:36,589 INFO L225 Difference]: With dead ends: 138 [2020-11-30 02:10:36,589 INFO L226 Difference]: Without dead ends: 84 [2020-11-30 02:10:36,589 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 [2020-11-30 02:10:36,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-30 02:10:36,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-30 02:10:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-30 02:10:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2020-11-30 02:10:36,609 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2020-11-30 02:10:36,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:10:36,610 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2020-11-30 02:10:36,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:10:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2020-11-30 02:10:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:10:36,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:10:36,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:10:36,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:10:36,613 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:10:36,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:10:36,614 INFO L82 PathProgramCache]: Analyzing trace with hash 762481646, now seen corresponding path program 1 times [2020-11-30 02:10:36,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:10:36,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467294456] [2020-11-30 02:10:36,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:10:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:10:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:10:36,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467294456] [2020-11-30 02:10:36,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:10:36,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:10:36,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591448023] [2020-11-30 02:10:36,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:10:36,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:10:36,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:10:36,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:10:36,719 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 3 states. [2020-11-30 02:10:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:10:36,736 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2020-11-30 02:10:36,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:10:36,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-30 02:10:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:10:36,739 INFO L225 Difference]: With dead ends: 84 [2020-11-30 02:10:36,739 INFO L226 Difference]: Without dead ends: 72 [2020-11-30 02:10:36,739 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 [2020-11-30 02:10:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-30 02:10:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-11-30 02:10:36,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-30 02:10:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2020-11-30 02:10:36,746 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 12 [2020-11-30 02:10:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:10:36,746 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2020-11-30 02:10:36,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:10:36,746 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-11-30 02:10:36,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:10:36,757 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:10:36,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:10:36,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:10:36,758 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:10:36,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:10:36,758 INFO L82 PathProgramCache]: Analyzing trace with hash 630959256, now seen corresponding path program 1 times [2020-11-30 02:10:36,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:10:36,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602483610] [2020-11-30 02:10:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:10:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:10:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:10:36,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602483610] [2020-11-30 02:10:36,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:10:36,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 02:10:36,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270937970] [2020-11-30 02:10:36,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:10:36,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:10:36,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:10:36,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:10:36,843 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 4 states. [2020-11-30 02:10:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:10:36,883 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2020-11-30 02:10:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:10:36,884 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 02:10:36,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:10:36,884 INFO L225 Difference]: With dead ends: 22 [2020-11-30 02:10:36,884 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:10:36,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:10:36,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:10:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:10:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:10:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:10:36,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 02:10:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:10:36,886 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:10:36,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:10:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:10:36,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:10:36,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 02:10:36,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:10:36 BasicIcfg [2020-11-30 02:10:36,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:10:36,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:10:36,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:10:36,892 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:10:36,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:10:30" (3/4) ... [2020-11-30 02:10:36,896 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:10:36,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2020-11-30 02:10:36,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2020-11-30 02:10:36,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 02:10:36,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 02:10:36,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:10:36,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:10:36,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7080cf9-223d-4649-aefa-3bc5f2398dce/bin/utaipan/witness.graphml [2020-11-30 02:10:36,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:10:36,992 INFO L168 Benchmark]: Toolchain (without parser) took 8367.44 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 72.4 MB in the beginning and 95.1 MB in the end (delta: -22.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:36,993 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory was 82.1 MB in the beginning and 82.1 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:10:36,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.98 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 64.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:36,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.15 ms. Allocated memory is still 107.0 MB. Free memory was 64.2 MB in the beginning and 62.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:36,997 INFO L168 Benchmark]: Boogie Preprocessor took 34.99 ms. Allocated memory is still 107.0 MB. Free memory was 62.1 MB in the beginning and 61.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:36,998 INFO L168 Benchmark]: RCFGBuilder took 701.80 ms. Allocated memory is still 107.0 MB. Free memory was 61.0 MB in the beginning and 80.5 MB in the end (delta: -19.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:36,998 INFO L168 Benchmark]: TraceAbstraction took 6628.80 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 80.5 MB in the beginning and 98.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:36,999 INFO L168 Benchmark]: Witness Printer took 99.12 ms. Allocated memory is still 159.4 MB. Free memory was 98.3 MB in the beginning and 95.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:10:37,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory was 82.1 MB in the beginning and 82.1 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 822.98 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 64.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.15 ms. Allocated memory is still 107.0 MB. Free memory was 64.2 MB in the beginning and 62.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.99 ms. Allocated memory is still 107.0 MB. Free memory was 62.1 MB in the beginning and 61.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 701.80 ms. Allocated memory is still 107.0 MB. Free memory was 61.0 MB in the beginning and 80.5 MB in the end (delta: -19.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6628.80 ms. Allocated memory was 107.0 MB in the beginning and 159.4 MB in the end (delta: 52.4 MB). Free memory was 80.5 MB in the beginning and 98.3 MB in the end (delta: -17.8 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.1 GB. * Witness Printer took 99.12 ms. Allocated memory is still 159.4 MB. Free memory was 98.3 MB in the beginning and 95.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1123 VarBasedMoverChecksPositive, 105 VarBasedMoverChecksNegative, 65 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.1s, 96 PlacesBefore, 34 PlacesAfterwards, 98 TransitionsBefore, 33 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 4493 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 125 SDtfs, 68 SDslu, 60 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 723 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...