./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.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_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI --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 ecf2fc665a67e8bb95ade4d6200b75a6f4637c26 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:04,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:04,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:04,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:04,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:04,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:04,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:04,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:04,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:04,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:04,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:04,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:04,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:04,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:04,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:04,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:04,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:04,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:04,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:04,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:04,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:04,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:04,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:04,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:04,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:04,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:04,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:04,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:04,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:04,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:04,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:04,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:04,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:04,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:04,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:04,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:04,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:04,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:04,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:04,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:04,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:04,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:04,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:04,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:04,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:04,235 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:04,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:04,235 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:04,236 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:04,236 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:04,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:04,236 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:04,237 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:04,238 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:04,238 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:04,238 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:04,238 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:04,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:04,239 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:04,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:04,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:04,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:04,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:04,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:04,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:04,241 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:04,241 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:04,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:04,242 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:04,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:04,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:04,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:04,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:04,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:04,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:04,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:04,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:04,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:04,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:04,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:04,246 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:04,247 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_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf2fc665a67e8bb95ade4d6200b75a6f4637c26 [2021-10-11 02:25:04,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:04,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:04,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:04,570 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:04,570 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:04,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i [2021-10-11 02:25:04,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/data/6790da31b/d82e9d79605d44b49317c98410eb5c17/FLAG0490bffcd [2021-10-11 02:25:05,163 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:05,164 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i [2021-10-11 02:25:05,182 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/data/6790da31b/d82e9d79605d44b49317c98410eb5c17/FLAG0490bffcd [2021-10-11 02:25:05,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/data/6790da31b/d82e9d79605d44b49317c98410eb5c17 [2021-10-11 02:25:05,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:05,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:05,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:05,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:05,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:05,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:05" (1/1) ... [2021-10-11 02:25:05,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ad564c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:05, skipping insertion in model container [2021-10-11 02:25:05,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:05" (1/1) ... [2021-10-11 02:25:05,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:05,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:05,726 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i[950,963] [2021-10-11 02:25:05,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:05,891 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:05,911 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/sv-benchmarks/c/pthread-wmm/safe029_tso.oepc.i[950,963] [2021-10-11 02:25:05,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:06,053 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:06,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06 WrapperNode [2021-10-11 02:25:06,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:06,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:06,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:06,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:06,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:06,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:06,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:06,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:06,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... [2021-10-11 02:25:06,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:06,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:06,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:06,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:06,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:25:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-11 02:25:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:25:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-11 02:25:06,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-11 02:25:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-11 02:25:06,250 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-11 02:25:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-11 02:25:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:06,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:06,253 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:25:06,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:06,588 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:25:06,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:06 BoogieIcfgContainer [2021-10-11 02:25:06,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:06,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:06,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:06,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:06,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:05" (1/3) ... [2021-10-11 02:25:06,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f3772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:06, skipping insertion in model container [2021-10-11 02:25:06,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:06" (2/3) ... [2021-10-11 02:25:06,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f3772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:06, skipping insertion in model container [2021-10-11 02:25:06,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:06" (3/3) ... [2021-10-11 02:25:06,600 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc.i [2021-10-11 02:25:06,616 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:25:06,616 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:06,619 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:06,620 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:25:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,646 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,646 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,647 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,647 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,649 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,650 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,654 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,656 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,662 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,664 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,664 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,670 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,670 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,671 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:25:06,673 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-11 02:25:06,681 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:25:06,701 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:06,701 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:06,701 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:06,702 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:06,702 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:06,702 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:06,702 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:06,702 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:06,713 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:25:06,715 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 59 transitions, 128 flow [2021-10-11 02:25:06,718 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 59 transitions, 128 flow [2021-10-11 02:25:06,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 59 transitions, 128 flow [2021-10-11 02:25:06,754 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-10-11 02:25:06,754 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-11 02:25:06,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-10-11 02:25:06,759 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2021-10-11 02:25:08,669 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-10-11 02:25:08,907 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2021-10-11 02:25:09,043 INFO L131 LiptonReduction]: Checked pairs total: 1340 [2021-10-11 02:25:09,043 INFO L133 LiptonReduction]: Total number of compositions: 53 [2021-10-11 02:25:09,049 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2021-10-11 02:25:09,060 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2021-10-11 02:25:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2021-10-11 02:25:09,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:25:09,068 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:09,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:25:09,069 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:09,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:09,074 INFO L82 PathProgramCache]: Analyzing trace with hash -2070123945, now seen corresponding path program 1 times [2021-10-11 02:25:09,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:09,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619629940] [2021-10-11 02:25:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:09,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619629940] [2021-10-11 02:25:09,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:09,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:09,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863473298] [2021-10-11 02:25:09,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:25:09,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:09,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:25:09,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:09,302 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2021-10-11 02:25:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:09,326 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2021-10-11 02:25:09,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:25:09,327 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-10-11 02:25:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:09,338 INFO L225 Difference]: With dead ends: 90 [2021-10-11 02:25:09,341 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 02:25:09,342 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 [2021-10-11 02:25:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 02:25:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-11 02:25:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 02:25:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2021-10-11 02:25:09,394 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2021-10-11 02:25:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:09,395 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2021-10-11 02:25:09,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:25:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2021-10-11 02:25:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:25:09,399 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:09,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:09,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:09,400 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:09,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:09,400 INFO L82 PathProgramCache]: Analyzing trace with hash 250664680, now seen corresponding path program 1 times [2021-10-11 02:25:09,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:09,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827202117] [2021-10-11 02:25:09,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:09,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827202117] [2021-10-11 02:25:09,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:09,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:09,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895327516] [2021-10-11 02:25:09,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:09,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:09,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:09,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:09,526 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2021-10-11 02:25:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:09,566 INFO L93 Difference]: Finished difference Result 86 states and 174 transitions. [2021-10-11 02:25:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:09,567 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:25:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:09,571 INFO L225 Difference]: With dead ends: 86 [2021-10-11 02:25:09,571 INFO L226 Difference]: Without dead ends: 70 [2021-10-11 02:25:09,572 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 [2021-10-11 02:25:09,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-10-11 02:25:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-10-11 02:25:09,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-10-11 02:25:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 148 transitions. [2021-10-11 02:25:09,594 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 148 transitions. Word has length 7 [2021-10-11 02:25:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:09,595 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 148 transitions. [2021-10-11 02:25:09,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:09,595 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 148 transitions. [2021-10-11 02:25:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:25:09,596 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:09,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:09,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:09,597 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:09,597 INFO L82 PathProgramCache]: Analyzing trace with hash -820302587, now seen corresponding path program 1 times [2021-10-11 02:25:09,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:09,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470095202] [2021-10-11 02:25:09,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:09,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:09,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470095202] [2021-10-11 02:25:09,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:09,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:09,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932382602] [2021-10-11 02:25:09,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:09,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:09,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:09,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:09,708 INFO L87 Difference]: Start difference. First operand 70 states and 148 transitions. Second operand 4 states. [2021-10-11 02:25:09,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:09,728 INFO L93 Difference]: Finished difference Result 80 states and 160 transitions. [2021-10-11 02:25:09,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:09,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:25:09,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:09,730 INFO L225 Difference]: With dead ends: 80 [2021-10-11 02:25:09,730 INFO L226 Difference]: Without dead ends: 68 [2021-10-11 02:25:09,730 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 [2021-10-11 02:25:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-11 02:25:09,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-11 02:25:09,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-10-11 02:25:09,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 142 transitions. [2021-10-11 02:25:09,737 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 142 transitions. Word has length 8 [2021-10-11 02:25:09,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:09,737 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 142 transitions. [2021-10-11 02:25:09,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:09,737 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 142 transitions. [2021-10-11 02:25:09,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:25:09,738 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:09,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:09,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:25:09,738 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:09,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:09,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1131929334, now seen corresponding path program 1 times [2021-10-11 02:25:09,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:09,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022790275] [2021-10-11 02:25:09,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:09,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:09,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022790275] [2021-10-11 02:25:09,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:09,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:09,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389520836] [2021-10-11 02:25:09,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:09,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:09,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:09,819 INFO L87 Difference]: Start difference. First operand 68 states and 142 transitions. Second operand 4 states. [2021-10-11 02:25:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:09,854 INFO L93 Difference]: Finished difference Result 92 states and 184 transitions. [2021-10-11 02:25:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:09,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:25:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:09,859 INFO L225 Difference]: With dead ends: 92 [2021-10-11 02:25:09,860 INFO L226 Difference]: Without dead ends: 60 [2021-10-11 02:25:09,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-11 02:25:09,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2021-10-11 02:25:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-10-11 02:25:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 94 transitions. [2021-10-11 02:25:09,874 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 94 transitions. Word has length 9 [2021-10-11 02:25:09,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:09,875 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 94 transitions. [2021-10-11 02:25:09,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:09,875 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 94 transitions. [2021-10-11 02:25:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:25:09,876 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:09,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:09,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:25:09,877 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:09,878 INFO L82 PathProgramCache]: Analyzing trace with hash 125459403, now seen corresponding path program 1 times [2021-10-11 02:25:09,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:09,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517412434] [2021-10-11 02:25:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:09,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:09,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517412434] [2021-10-11 02:25:09,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:09,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:09,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586893041] [2021-10-11 02:25:09,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:09,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:09,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:09,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:09,922 INFO L87 Difference]: Start difference. First operand 52 states and 94 transitions. Second operand 4 states. [2021-10-11 02:25:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:09,957 INFO L93 Difference]: Finished difference Result 48 states and 73 transitions. [2021-10-11 02:25:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:09,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-10-11 02:25:09,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:09,959 INFO L225 Difference]: With dead ends: 48 [2021-10-11 02:25:09,959 INFO L226 Difference]: Without dead ends: 35 [2021-10-11 02:25:09,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:09,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-11 02:25:09,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-11 02:25:09,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2021-10-11 02:25:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-11 02:25:09,966 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 9 [2021-10-11 02:25:09,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:09,967 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-11 02:25:09,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-11 02:25:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:09,968 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:09,969 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:09,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:25:09,969 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:09,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:09,970 INFO L82 PathProgramCache]: Analyzing trace with hash 515064884, now seen corresponding path program 1 times [2021-10-11 02:25:09,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:09,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275837339] [2021-10-11 02:25:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:10,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:10,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275837339] [2021-10-11 02:25:10,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:10,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:10,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114430943] [2021-10-11 02:25:10,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:10,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:10,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:10,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:10,052 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 5 states. [2021-10-11 02:25:10,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:10,071 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2021-10-11 02:25:10,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:10,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 02:25:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:10,072 INFO L225 Difference]: With dead ends: 25 [2021-10-11 02:25:10,072 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:10,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:10,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:10,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:10,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:10,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:10,073 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-11 02:25:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:10,074 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:10,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:10,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:10,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:25:10,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:10 BasicIcfg [2021-10-11 02:25:10,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:10,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:10,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:10,080 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:10,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:06" (3/4) ... [2021-10-11 02:25:10,084 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:10,090 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-11 02:25:10,091 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-11 02:25:10,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:25:10,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:10,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:10,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:10,168 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e6da06f-c36b-4f5f-9c6c-a2e567faab49/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:10,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:10,170 INFO L168 Benchmark]: Toolchain (without parser) took 4701.27 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 58.5 MB in the beginning and 95.9 MB in the end (delta: -37.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,170 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:10,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.94 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 49.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.71 ms. Allocated memory is still 94.4 MB. Free memory was 49.7 MB in the beginning and 48.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,173 INFO L168 Benchmark]: Boogie Preprocessor took 48.14 ms. Allocated memory is still 94.4 MB. Free memory was 48.0 MB in the beginning and 46.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:10,173 INFO L168 Benchmark]: RCFGBuilder took 419.12 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 79.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,177 INFO L168 Benchmark]: TraceAbstraction took 3486.20 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.9 MB in the beginning and 98.0 MB in the end (delta: -19.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,178 INFO L168 Benchmark]: Witness Printer took 89.23 ms. Allocated memory is still 136.3 MB. Free memory was 98.0 MB in the beginning and 95.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:10,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 580.94 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 49.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.71 ms. Allocated memory is still 94.4 MB. Free memory was 49.7 MB in the beginning and 48.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.14 ms. Allocated memory is still 94.4 MB. Free memory was 48.0 MB in the beginning and 46.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 419.12 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 79.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3486.20 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.9 MB in the beginning and 98.0 MB in the end (delta: -19.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 89.23 ms. Allocated memory is still 136.3 MB. Free memory was 98.0 MB in the beginning and 95.9 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 455 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 45 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 64 PlacesBefore, 23 PlacesAfterwards, 59 TransitionsBefore, 17 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 1340 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, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 95 SDtfs, 53 SDslu, 99 SDs, 0 SdLazy, 47 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s 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, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1238 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...