./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join.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_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/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 3f78296dc1cf80b4adc36195bb88732ccad57c55 ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:41:26,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:27,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:27,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:27,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:27,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:27,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:27,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:27,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:27,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:27,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:27,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:27,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:27,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:27,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:27,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:27,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:27,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:27,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:27,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:27,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:27,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:27,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:27,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:27,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:27,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:27,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:27,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:27,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:27,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:27,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:27,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:27,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:27,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:27,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:27,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:27,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:27,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:27,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:27,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:27,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:27,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:41:27,209 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:27,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:27,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:27,211 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:27,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:27,211 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:27,212 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:41:27,212 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:27,212 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:27,212 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:41:27,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:41:27,214 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:27,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:41:27,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:41:27,227 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:41:27,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:27,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:27,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:41:27,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:27,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:27,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:41:27,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:27,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:41:27,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:27,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:27,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:41:27,233 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:27,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:41:27,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:27,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:27,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:27,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:27,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:27,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:27,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:41:27,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:41:27,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:41:27,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:41:27,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:27,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:27,236 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_48e06638-257e-424d-83d6-66b157699e97/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f78296dc1cf80b4adc36195bb88732ccad57c55 [2020-11-28 07:41:27,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:27,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:27,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:27,547 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:27,548 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:27,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2020-11-28 07:41:27,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/data/b6c9fe39b/01a5cc646812460cb97c80af5a2c7e62/FLAG7004e542a [2020-11-28 07:41:28,401 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:28,402 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/sv-benchmarks/c/ldv-races/race-1_1-join.i [2020-11-28 07:41:28,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/data/b6c9fe39b/01a5cc646812460cb97c80af5a2c7e62/FLAG7004e542a [2020-11-28 07:41:28,530 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/data/b6c9fe39b/01a5cc646812460cb97c80af5a2c7e62 [2020-11-28 07:41:28,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:28,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:28,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:28,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:28,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:28,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:28" (1/1) ... [2020-11-28 07:41:28,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d4ef2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:28, skipping insertion in model container [2020-11-28 07:41:28,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:28" (1/1) ... [2020-11-28 07:41:28,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:28,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:29,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:29,461 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:29,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:29,909 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:29,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29 WrapperNode [2020-11-28 07:41:29,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:29,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:29,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:29,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:29,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:29,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:29,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:29,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:29,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:29,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:30,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... [2020-11-28 07:41:30,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:30,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:30,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:30,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:30,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/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 [2020-11-28 07:41:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:41:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:41:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-28 07:41:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 07:41:30,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:30,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-28 07:41:30,129 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-28 07:41:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:41:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:41:30,131 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 07:41:30,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:30,909 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-28 07:41:30,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:30 BoogieIcfgContainer [2020-11-28 07:41:30,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:30,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:30,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:30,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:30,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:28" (1/3) ... [2020-11-28 07:41:30,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a506e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:30, skipping insertion in model container [2020-11-28 07:41:30,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:29" (2/3) ... [2020-11-28 07:41:30,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a506e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:30, skipping insertion in model container [2020-11-28 07:41:30,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:30" (3/3) ... [2020-11-28 07:41:30,919 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-11-28 07:41:30,931 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 07:41:30,931 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:30,936 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 07:41:30,937 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 07:41:30,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,969 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,969 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,970 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,970 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,971 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,971 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,972 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,973 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,974 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,975 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,979 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 07:41:30,994 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-28 07:41:31,005 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-28 07:41:31,022 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:31,023 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:31,023 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:31,023 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:31,023 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:31,023 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:31,024 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:31,024 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:31,037 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 07:41:31,039 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 108 transitions, 224 flow [2020-11-28 07:41:31,042 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 108 transitions, 224 flow [2020-11-28 07:41:31,044 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 108 transitions, 224 flow [2020-11-28 07:41:31,105 INFO L129 PetriNetUnfolder]: 9/119 cut-off events. [2020-11-28 07:41:31,105 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-28 07:41:31,108 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 243 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2020-11-28 07:41:31,118 INFO L116 LiptonReduction]: Number of co-enabled transitions 532 [2020-11-28 07:41:33,511 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-11-28 07:41:33,906 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-28 07:41:34,034 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-28 07:41:34,237 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-28 07:41:34,385 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-28 07:41:34,781 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-11-28 07:41:34,950 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-28 07:41:35,163 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-28 07:41:35,381 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-11-28 07:41:35,383 INFO L131 LiptonReduction]: Checked pairs total: 456 [2020-11-28 07:41:35,383 INFO L133 LiptonReduction]: Total number of compositions: 145 [2020-11-28 07:41:35,388 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 14 transitions, 36 flow [2020-11-28 07:41:35,395 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-11-28 07:41:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-28 07:41:35,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-11-28 07:41:35,402 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:35,403 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-11-28 07:41:35,403 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:35,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:35,409 INFO L82 PathProgramCache]: Analyzing trace with hash 456, now seen corresponding path program 1 times [2020-11-28 07:41:35,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:35,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072962425] [2020-11-28 07:41:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:35,726 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 07:41:35,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072962425] [2020-11-28 07:41:35,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:35,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-11-28 07:41:35,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106418996] [2020-11-28 07:41:35,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:41:35,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:35,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:41:35,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:41:35,760 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-28 07:41:35,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:35,772 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-11-28 07:41:35,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:41:35,773 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-11-28 07:41:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:35,780 INFO L225 Difference]: With dead ends: 14 [2020-11-28 07:41:35,782 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:41:35,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:41:35,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:41:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:41:35,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:41:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:41:35,808 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2020-11-28 07:41:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:35,809 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:41:35,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:41:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:41:35,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:41:35,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:41:35,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:35 BasicIcfg [2020-11-28 07:41:35,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:35,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:35,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:35,822 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:35,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:30" (3/4) ... [2020-11-28 07:41:35,826 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:41:35,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2020-11-28 07:41:35,839 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 07:41:35,840 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:41:35,840 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:41:35,840 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:41:35,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_48e06638-257e-424d-83d6-66b157699e97/bin/utaipan/witness.graphml [2020-11-28 07:41:35,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:35,913 INFO L168 Benchmark]: Toolchain (without parser) took 7376.99 ms. Allocated memory was 117.4 MB in the beginning and 180.4 MB in the end (delta: 62.9 MB). Free memory was 93.3 MB in the beginning and 135.3 MB in the end (delta: -42.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:35,913 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 52.4 MB in the beginning and 52.3 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:35,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1371.02 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 93.3 MB in the beginning and 113.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:35,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.58 ms. Allocated memory is still 148.9 MB. Free memory was 113.3 MB in the beginning and 110.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:35,917 INFO L168 Benchmark]: Boogie Preprocessor took 44.40 ms. Allocated memory is still 148.9 MB. Free memory was 110.2 MB in the beginning and 108.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:35,917 INFO L168 Benchmark]: RCFGBuilder took 870.68 ms. Allocated memory is still 148.9 MB. Free memory was 108.1 MB in the beginning and 69.2 MB in the end (delta: 38.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:35,918 INFO L168 Benchmark]: TraceAbstraction took 4906.65 ms. Allocated memory was 148.9 MB in the beginning and 180.4 MB in the end (delta: 31.5 MB). Free memory was 69.2 MB in the beginning and 138.4 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:35,918 INFO L168 Benchmark]: Witness Printer took 90.29 ms. Allocated memory is still 180.4 MB. Free memory was 138.4 MB in the beginning and 135.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:35,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 52.4 MB in the beginning and 52.3 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1371.02 ms. Allocated memory was 117.4 MB in the beginning and 148.9 MB in the end (delta: 31.5 MB). Free memory was 93.3 MB in the beginning and 113.3 MB in the end (delta: -20.0 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.58 ms. Allocated memory is still 148.9 MB. Free memory was 113.3 MB in the beginning and 110.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.40 ms. Allocated memory is still 148.9 MB. Free memory was 110.2 MB in the beginning and 108.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 870.68 ms. Allocated memory is still 148.9 MB. Free memory was 108.1 MB in the beginning and 69.2 MB in the end (delta: 38.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4906.65 ms. Allocated memory was 148.9 MB in the beginning and 180.4 MB in the end (delta: 31.5 MB). Free memory was 69.2 MB in the beginning and 138.4 MB in the end (delta: -69.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 90.29 ms. Allocated memory is still 180.4 MB. Free memory was 138.4 MB in the beginning and 135.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 381 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 5 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.3s, 102 PlacesBefore, 16 PlacesAfterwards, 108 TransitionsBefore, 14 TransitionsAfterwards, 532 CoEnabledTransitionPairs, 7 FixpointIterations, 85 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 12 ConcurrentYvCompositions, 8 ChoiceCompositions, 145 TotalNumberOfCompositions, 456 MoverChecksTotal - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...