./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/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 5ebcae5ebc22604393c914f8d2ecbf0958e5d83a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:29:09,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:29:09,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:29:09,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:29:09,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:29:09,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:29:09,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:29:09,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:29:09,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:29:09,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:29:09,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:29:09,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:29:09,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:29:09,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:29:09,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:29:09,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:29:09,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:29:09,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:29:09,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:29:09,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:29:09,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:29:09,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:29:09,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:29:09,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:29:09,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:29:09,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:29:09,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:29:09,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:29:09,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:29:09,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:29:09,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:29:09,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:29:09,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:29:09,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:29:09,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:29:09,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:29:09,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:29:09,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:29:09,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:29:09,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:29:09,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:29:09,111 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 09:29:09,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:29:09,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:29:09,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:29:09,137 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:29:09,138 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:29:09,138 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:29:09,138 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:29:09,138 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:29:09,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:29:09,139 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:29:09,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:29:09,139 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:29:09,139 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:29:09,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:29:09,140 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:29:09,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:29:09,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:29:09,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:29:09,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:29:09,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:29:09,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:29:09,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:29:09,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:29:09,142 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:29:09,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:29:09,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:29:09,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:29:09,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:29:09,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:29:09,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:29:09,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:29:09,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:29:09,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:29:09,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:29:09,144 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:29:09,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:29:09,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:29:09,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:29:09,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:29:09,145 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_5b1a1017-9db9-444e-865c-5091ac9dd8d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ebcae5ebc22604393c914f8d2ecbf0958e5d83a [2020-12-09 09:29:09,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:29:09,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:29:09,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:29:09,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:29:09,363 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:29:09,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i [2020-12-09 09:29:09,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/data/adcdd2175/50d7f15b0e06452aa8b39ab1e9d534bc/FLAGa71e51ed1 [2020-12-09 09:29:09,795 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:29:09,796 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i [2020-12-09 09:29:09,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/data/adcdd2175/50d7f15b0e06452aa8b39ab1e9d534bc/FLAGa71e51ed1 [2020-12-09 09:29:09,815 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/data/adcdd2175/50d7f15b0e06452aa8b39ab1e9d534bc [2020-12-09 09:29:09,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:29:09,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:29:09,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:29:09,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:29:09,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:29:09,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:29:09" (1/1) ... [2020-12-09 09:29:09,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a292a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:09, skipping insertion in model container [2020-12-09 09:29:09,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:29:09" (1/1) ... [2020-12-09 09:29:09,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:29:09,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:29:09,980 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i[949,962] [2020-12-09 09:29:10,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:29:10,078 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:29:10,086 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i[949,962] [2020-12-09 09:29:10,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:29:10,158 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:29:10,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10 WrapperNode [2020-12-09 09:29:10,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:29:10,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:29:10,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:29:10,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:29:10,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:29:10,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:29:10,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:29:10,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:29:10,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... [2020-12-09 09:29:10,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:29:10,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:29:10,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:29:10,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:29:10,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:29:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 09:29:10,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-09 09:29:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:29:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 09:29:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-09 09:29:10,284 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-09 09:29:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-09 09:29:10,284 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-09 09:29:10,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 09:29:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-09 09:29:10,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:29:10,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:29:10,286 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-09 09:29:10,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:29:10,487 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-09 09:29:10,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:29:10 BoogieIcfgContainer [2020-12-09 09:29:10,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:29:10,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:29:10,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:29:10,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:29:10,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:29:09" (1/3) ... [2020-12-09 09:29:10,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2561af87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:29:10, skipping insertion in model container [2020-12-09 09:29:10,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:29:10" (2/3) ... [2020-12-09 09:29:10,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2561af87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:29:10, skipping insertion in model container [2020-12-09 09:29:10,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:29:10" (3/3) ... [2020-12-09 09:29:10,494 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2020-12-09 09:29:10,503 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-09 09:29:10,503 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:29:10,505 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:29:10,506 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-09 09:29:10,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,528 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,529 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,529 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,531 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,533 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,533 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,537 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 09:29:10,539 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-09 09:29:10,546 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 09:29:10,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:29:10,560 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:29:10,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:29:10,560 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:29:10,560 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:29:10,560 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:29:10,560 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:29:10,560 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:29:10,567 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-09 09:29:10,569 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-09 09:29:10,571 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 61 transitions, 132 flow [2020-12-09 09:29:10,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2020-12-09 09:29:10,598 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2020-12-09 09:29:10,598 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-09 09:29:10,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2020-12-09 09:29:10,602 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2020-12-09 09:29:12,159 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-09 09:29:12,368 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-09 09:29:12,428 INFO L131 LiptonReduction]: Checked pairs total: 1534 [2020-12-09 09:29:12,429 INFO L133 LiptonReduction]: Total number of compositions: 54 [2020-12-09 09:29:12,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-12-09 09:29:12,440 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-12-09 09:29:12,442 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-12-09 09:29:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 09:29:12,445 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:29:12,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 09:29:12,445 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:29:12,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:29:12,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1865753681, now seen corresponding path program 1 times [2020-12-09 09:29:12,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:29:12,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766253262] [2020-12-09 09:29:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:29:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:29:12,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:29:12,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766253262] [2020-12-09 09:29:12,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:29:12,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:29:12,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118596799] [2020-12-09 09:29:12,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 09:29:12,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:29:12,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 09:29:12,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 09:29:12,571 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-12-09 09:29:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:29:12,581 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-12-09 09:29:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 09:29:12,582 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 09:29:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:29:12,588 INFO L225 Difference]: With dead ends: 90 [2020-12-09 09:29:12,588 INFO L226 Difference]: Without dead ends: 74 [2020-12-09 09:29:12,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 09:29:12,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-09 09:29:12,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-09 09:29:12,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-09 09:29:12,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-12-09 09:29:12,617 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-12-09 09:29:12,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:29:12,617 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-12-09 09:29:12,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 09:29:12,617 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-12-09 09:29:12,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 09:29:12,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:29:12,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:29:12,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:29:12,618 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:29:12,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:29:12,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2003798512, now seen corresponding path program 1 times [2020-12-09 09:29:12,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:29:12,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112383292] [2020-12-09 09:29:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:29:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:29:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:29:12,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112383292] [2020-12-09 09:29:12,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:29:12,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:29:12,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751853630] [2020-12-09 09:29:12,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:29:12,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:29:12,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:29:12,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:29:12,702 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-12-09 09:29:12,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:29:12,723 INFO L93 Difference]: Finished difference Result 88 states and 179 transitions. [2020-12-09 09:29:12,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:29:12,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-09 09:29:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:29:12,725 INFO L225 Difference]: With dead ends: 88 [2020-12-09 09:29:12,725 INFO L226 Difference]: Without dead ends: 72 [2020-12-09 09:29:12,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:29:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-12-09 09:29:12,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-12-09 09:29:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-09 09:29:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 154 transitions. [2020-12-09 09:29:12,733 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 154 transitions. Word has length 7 [2020-12-09 09:29:12,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:29:12,733 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 154 transitions. [2020-12-09 09:29:12,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:29:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 154 transitions. [2020-12-09 09:29:12,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:29:12,734 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:29:12,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:29:12,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 09:29:12,734 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:29:12,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:29:12,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1988772591, now seen corresponding path program 1 times [2020-12-09 09:29:12,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:29:12,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184509997] [2020-12-09 09:29:12,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:29:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:29:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:29:12,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184509997] [2020-12-09 09:29:12,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:29:12,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:29:12,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271328514] [2020-12-09 09:29:12,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:29:12,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:29:12,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:29:12,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:29:12,794 INFO L87 Difference]: Start difference. First operand 72 states and 154 transitions. Second operand 5 states. [2020-12-09 09:29:12,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:29:12,844 INFO L93 Difference]: Finished difference Result 123 states and 245 transitions. [2020-12-09 09:29:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 09:29:12,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-09 09:29:12,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:29:12,845 INFO L225 Difference]: With dead ends: 123 [2020-12-09 09:29:12,845 INFO L226 Difference]: Without dead ends: 84 [2020-12-09 09:29:12,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:29:12,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-09 09:29:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 66. [2020-12-09 09:29:12,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-09 09:29:12,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 136 transitions. [2020-12-09 09:29:12,852 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 136 transitions. Word has length 8 [2020-12-09 09:29:12,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:29:12,853 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 136 transitions. [2020-12-09 09:29:12,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:29:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 136 transitions. [2020-12-09 09:29:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:29:12,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:29:12,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:29:12,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 09:29:12,854 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:29:12,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:29:12,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1988232509, now seen corresponding path program 1 times [2020-12-09 09:29:12,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:29:12,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688620910] [2020-12-09 09:29:12,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:29:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:29:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:29:12,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688620910] [2020-12-09 09:29:12,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:29:12,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:29:12,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598470846] [2020-12-09 09:29:12,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 09:29:12,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:29:12,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 09:29:12,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:29:12,904 INFO L87 Difference]: Start difference. First operand 66 states and 136 transitions. Second operand 5 states. [2020-12-09 09:29:12,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:29:12,921 INFO L93 Difference]: Finished difference Result 72 states and 140 transitions. [2020-12-09 09:29:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 09:29:12,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-12-09 09:29:12,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:29:12,922 INFO L225 Difference]: With dead ends: 72 [2020-12-09 09:29:12,922 INFO L226 Difference]: Without dead ends: 60 [2020-12-09 09:29:12,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:29:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-09 09:29:12,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-12-09 09:29:12,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-09 09:29:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 120 transitions. [2020-12-09 09:29:12,927 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 120 transitions. Word has length 8 [2020-12-09 09:29:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:29:12,928 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 120 transitions. [2020-12-09 09:29:12,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 09:29:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 120 transitions. [2020-12-09 09:29:12,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 09:29:12,928 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:29:12,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:29:12,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 09:29:12,929 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:29:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:29:12,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1522428958, now seen corresponding path program 1 times [2020-12-09 09:29:12,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:29:12,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357181038] [2020-12-09 09:29:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:29:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:29:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:29:12,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357181038] [2020-12-09 09:29:12,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:29:12,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:29:12,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764533119] [2020-12-09 09:29:12,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:29:12,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:29:12,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:29:12,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:29:12,983 INFO L87 Difference]: Start difference. First operand 60 states and 120 transitions. Second operand 6 states. [2020-12-09 09:29:13,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:29:13,015 INFO L93 Difference]: Finished difference Result 75 states and 145 transitions. [2020-12-09 09:29:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:29:13,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2020-12-09 09:29:13,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:29:13,016 INFO L225 Difference]: With dead ends: 75 [2020-12-09 09:29:13,016 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 09:29:13,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:29:13,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 09:29:13,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-09 09:29:13,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-09 09:29:13,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-12-09 09:29:13,019 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 9 [2020-12-09 09:29:13,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:29:13,019 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-12-09 09:29:13,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:29:13,019 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-12-09 09:29:13,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 09:29:13,020 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:29:13,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:29:13,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 09:29:13,020 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:29:13,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:29:13,020 INFO L82 PathProgramCache]: Analyzing trace with hash 567543910, now seen corresponding path program 1 times [2020-12-09 09:29:13,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:29:13,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235981432] [2020-12-09 09:29:13,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:29:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:29:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:29:13,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235981432] [2020-12-09 09:29:13,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:29:13,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:29:13,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226043389] [2020-12-09 09:29:13,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 09:29:13,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:29:13,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 09:29:13,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 09:29:13,078 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 6 states. [2020-12-09 09:29:13,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:29:13,100 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-12-09 09:29:13,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 09:29:13,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-12-09 09:29:13,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:29:13,101 INFO L225 Difference]: With dead ends: 36 [2020-12-09 09:29:13,101 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:29:13,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:29:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:29:13,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:29:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:29:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:29:13,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 09:29:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:29:13,102 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:29:13,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 09:29:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:29:13,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:29:13,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 09:29:13,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:29:13 BasicIcfg [2020-12-09 09:29:13,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:29:13,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:29:13,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:29:13,105 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:29:13,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:29:10" (3/4) ... [2020-12-09 09:29:13,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:29:13,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-09 09:29:13,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-09 09:29:13,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-09 09:29:13,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 09:29:13,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:29:13,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:29:13,139 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5b1a1017-9db9-444e-865c-5091ac9dd8d7/bin/utaipan/witness.graphml [2020-12-09 09:29:13,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:29:13,140 INFO L168 Benchmark]: Toolchain (without parser) took 3321.82 ms. Allocated memory was 121.6 MB in the beginning and 180.4 MB in the end (delta: 58.7 MB). Free memory was 68.4 MB in the beginning and 102.5 MB in the end (delta: -34.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:29:13,140 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 121.6 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:29:13,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.19 ms. Allocated memory is still 121.6 MB. Free memory was 68.2 MB in the beginning and 78.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-12-09 09:29:13,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.97 ms. Allocated memory is still 121.6 MB. Free memory was 78.2 MB in the beginning and 76.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:29:13,141 INFO L168 Benchmark]: Boogie Preprocessor took 21.90 ms. Allocated memory is still 121.6 MB. Free memory was 76.5 MB in the beginning and 75.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:29:13,142 INFO L168 Benchmark]: RCFGBuilder took 271.52 ms. Allocated memory is still 121.6 MB. Free memory was 75.1 MB in the beginning and 55.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 09:29:13,142 INFO L168 Benchmark]: TraceAbstraction took 2615.00 ms. Allocated memory was 121.6 MB in the beginning and 180.4 MB in the end (delta: 58.7 MB). Free memory was 54.8 MB in the beginning and 104.5 MB in the end (delta: -49.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:29:13,143 INFO L168 Benchmark]: Witness Printer took 34.41 ms. Allocated memory is still 180.4 MB. Free memory was 104.5 MB in the beginning and 102.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:29:13,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 121.6 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.19 ms. Allocated memory is still 121.6 MB. Free memory was 68.2 MB in the beginning and 78.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.97 ms. Allocated memory is still 121.6 MB. Free memory was 78.2 MB in the beginning and 76.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.90 ms. Allocated memory is still 121.6 MB. Free memory was 76.5 MB in the beginning and 75.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 271.52 ms. Allocated memory is still 121.6 MB. Free memory was 75.1 MB in the beginning and 55.1 MB in the end (delta: 20.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2615.00 ms. Allocated memory was 121.6 MB in the beginning and 180.4 MB in the end (delta: 58.7 MB). Free memory was 54.8 MB in the beginning and 104.5 MB in the end (delta: -49.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Witness Printer took 34.41 ms. Allocated memory is still 180.4 MB. Free memory was 104.5 MB in the beginning and 102.5 MB in the end (delta: 2.1 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 504 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 54 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 66 PlacesBefore, 23 PlacesAfterwards, 61 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 1534 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 98 SDtfs, 105 SDslu, 143 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...