./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b55cd39bd506cf3dcd548eec1f2cee49419f161 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:42:39,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:42:39,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:42:39,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:42:39,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:42:39,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:42:39,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:42:39,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:42:39,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:42:39,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:42:39,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:42:39,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:42:39,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:42:39,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:42:39,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:42:39,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:42:39,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:42:39,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:42:39,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:42:39,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:42:39,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:42:39,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:42:39,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:42:39,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:42:39,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:42:39,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:42:39,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:42:39,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:42:39,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:42:39,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:42:39,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:42:39,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:42:39,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:42:39,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:42:39,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:42:39,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:42:39,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:42:39,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:42:39,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:42:39,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:42:39,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:42:39,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:42:39,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:42:39,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:42:39,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:42:39,266 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:42:39,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:42:39,266 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:42:39,266 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:42:39,266 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:42:39,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:42:39,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:42:39,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:42:39,267 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:42:39,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:42:39,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:42:39,268 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:42:39,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:42:39,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:42:39,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:42:39,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:42:39,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:42:39,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:42:39,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:42:39,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:42:39,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:42:39,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:42:39,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:42:39,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:42:39,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:42:39,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:42:39,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:42:39,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:42:39,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:42:39,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:42:39,273 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:42:39,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:42:39,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:42:39,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:42:39,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_6c357525-b700-45f9-b033-1a0e22398745/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(__VERIFIER_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 -> 5b55cd39bd506cf3dcd548eec1f2cee49419f161 [2019-11-26 02:42:39,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:42:39,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:42:39,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:42:39,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:42:39,421 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:42:39,422 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2019-11-26 02:42:39,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/data/8e2de0ec7/81354205ff2f4819b3a34a0ffdd177aa/FLAG9ba707341 [2019-11-26 02:42:39,994 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:42:39,995 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc.i [2019-11-26 02:42:40,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/data/8e2de0ec7/81354205ff2f4819b3a34a0ffdd177aa/FLAG9ba707341 [2019-11-26 02:42:40,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/data/8e2de0ec7/81354205ff2f4819b3a34a0ffdd177aa [2019-11-26 02:42:40,493 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:42:40,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:42:40,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:40,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:42:40,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:42:40,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:40" (1/1) ... [2019-11-26 02:42:40,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7153e6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:40, skipping insertion in model container [2019-11-26 02:42:40,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:42:40" (1/1) ... [2019-11-26 02:42:40,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:42:40,546 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:42:40,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:40,995 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:42:41,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:42:41,128 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:42:41,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41 WrapperNode [2019-11-26 02:42:41,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:42:41,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:41,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:42:41,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:42:41,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:42:41,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:42:41,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:42:41,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:42:41,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... [2019-11-26 02:42:41,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:42:41,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:42:41,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:42:41,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:42:41,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/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 [2019-11-26 02:42:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:42:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:42:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:42:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:42:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:42:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:42:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:42:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:42:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:42:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:42:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-11-26 02:42:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-11-26 02:42:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:42:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:42:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:42:41,276 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:42:41,618 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:42:41,618 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:42:41,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:41 BoogieIcfgContainer [2019-11-26 02:42:41,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:42:41,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:42:41,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:42:41,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:42:41,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:42:40" (1/3) ... [2019-11-26 02:42:41,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1406f1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:41, skipping insertion in model container [2019-11-26 02:42:41,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:42:41" (2/3) ... [2019-11-26 02:42:41,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1406f1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:42:41, skipping insertion in model container [2019-11-26 02:42:41,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:41" (3/3) ... [2019-11-26 02:42:41,626 INFO L109 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2019-11-26 02:42:41,674 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,674 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,674 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,675 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,675 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,675 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,676 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,676 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,676 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,677 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,677 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,677 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,678 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,678 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,678 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,678 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,681 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,682 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,682 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,682 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,683 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,683 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,683 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,684 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,684 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,684 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,685 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,687 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,688 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,688 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,688 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,689 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,689 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,689 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,689 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,690 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,690 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,690 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,690 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,691 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,691 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,691 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,691 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,691 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,691 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,692 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,692 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,692 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,692 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,692 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,692 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,693 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,693 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,693 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,693 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,694 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,694 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,694 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,694 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,699 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,699 WARN L315 ript$VariableManager]: TermVariabe P3Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,699 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,700 WARN L315 ript$VariableManager]: TermVariabe |P3Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,700 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,700 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,700 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,701 WARN L315 ript$VariableManager]: TermVariabe P3Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,701 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,701 WARN L315 ript$VariableManager]: TermVariabe |P3Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:42:41,735 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:42:41,735 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:42:41,742 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:42:41,753 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:42:41,770 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:42:41,770 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:42:41,771 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:42:41,771 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:42:41,771 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:42:41,771 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:42:41,771 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:42:41,772 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:42:41,789 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 119 places, 91 transitions [2019-11-26 02:42:42,389 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5471 states. [2019-11-26 02:42:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states. [2019-11-26 02:42:42,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:42:42,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:42,425 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:42,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:42,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:42,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1291502467, now seen corresponding path program 1 times [2019-11-26 02:42:42,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:42,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057168477] [2019-11-26 02:42:42,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:42,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057168477] [2019-11-26 02:42:42,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:42,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:42:42,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798800952] [2019-11-26 02:42:42,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:42:42,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:42:42,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:42:42,839 INFO L87 Difference]: Start difference. First operand 5471 states. Second operand 4 states. [2019-11-26 02:42:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:43,054 INFO L93 Difference]: Finished difference Result 5708 states and 21933 transitions. [2019-11-26 02:42:43,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:42:43,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2019-11-26 02:42:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:43,100 INFO L225 Difference]: With dead ends: 5708 [2019-11-26 02:42:43,100 INFO L226 Difference]: Without dead ends: 2392 [2019-11-26 02:42:43,102 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:42:43,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-11-26 02:42:43,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-11-26 02:42:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-11-26 02:42:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 8936 transitions. [2019-11-26 02:42:43,265 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 8936 transitions. Word has length 34 [2019-11-26 02:42:43,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:43,266 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 8936 transitions. [2019-11-26 02:42:43,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:42:43,266 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 8936 transitions. [2019-11-26 02:42:43,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:42:43,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:43,271 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:43,271 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:43,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1585012355, now seen corresponding path program 1 times [2019-11-26 02:42:43,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:43,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487321129] [2019-11-26 02:42:43,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:43,379 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487321129] [2019-11-26 02:42:43,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:43,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:42:43,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402043591] [2019-11-26 02:42:43,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:42:43,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:43,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:42:43,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:42:43,382 INFO L87 Difference]: Start difference. First operand 2392 states and 8936 transitions. Second operand 5 states. [2019-11-26 02:42:43,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:43,470 INFO L93 Difference]: Finished difference Result 2563 states and 9320 transitions. [2019-11-26 02:42:43,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:42:43,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-11-26 02:42:43,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:43,492 INFO L225 Difference]: With dead ends: 2563 [2019-11-26 02:42:43,492 INFO L226 Difference]: Without dead ends: 2308 [2019-11-26 02:42:43,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:42:43,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2019-11-26 02:42:43,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2019-11-26 02:42:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-11-26 02:42:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 8544 transitions. [2019-11-26 02:42:43,583 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 8544 transitions. Word has length 35 [2019-11-26 02:42:43,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:43,583 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 8544 transitions. [2019-11-26 02:42:43,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:42:43,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 8544 transitions. [2019-11-26 02:42:43,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-26 02:42:43,588 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:43,588 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:43,589 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:43,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:43,589 INFO L82 PathProgramCache]: Analyzing trace with hash -204218135, now seen corresponding path program 1 times [2019-11-26 02:42:43,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:43,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596489517] [2019-11-26 02:42:43,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:43,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596489517] [2019-11-26 02:42:43,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:43,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:42:43,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552255198] [2019-11-26 02:42:43,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:42:43,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:43,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:42:43,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:42:43,742 INFO L87 Difference]: Start difference. First operand 2308 states and 8544 transitions. Second operand 6 states. [2019-11-26 02:42:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:43,855 INFO L93 Difference]: Finished difference Result 2173 states and 7680 transitions. [2019-11-26 02:42:43,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:42:43,856 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2019-11-26 02:42:43,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:43,874 INFO L225 Difference]: With dead ends: 2173 [2019-11-26 02:42:43,874 INFO L226 Difference]: Without dead ends: 1930 [2019-11-26 02:42:43,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:42:43,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2019-11-26 02:42:43,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2019-11-26 02:42:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2019-11-26 02:42:43,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6906 transitions. [2019-11-26 02:42:43,944 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6906 transitions. Word has length 36 [2019-11-26 02:42:43,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:43,945 INFO L462 AbstractCegarLoop]: Abstraction has 1930 states and 6906 transitions. [2019-11-26 02:42:43,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:42:43,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6906 transitions. [2019-11-26 02:42:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-26 02:42:43,953 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:43,954 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:43,954 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:43,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:43,954 INFO L82 PathProgramCache]: Analyzing trace with hash -784314106, now seen corresponding path program 1 times [2019-11-26 02:42:43,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:43,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813481260] [2019-11-26 02:42:43,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:44,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813481260] [2019-11-26 02:42:44,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:44,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:42:44,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347495578] [2019-11-26 02:42:44,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:42:44,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:44,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:42:44,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:42:44,105 INFO L87 Difference]: Start difference. First operand 1930 states and 6906 transitions. Second operand 7 states. [2019-11-26 02:42:44,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:44,232 INFO L93 Difference]: Finished difference Result 1363 states and 4530 transitions. [2019-11-26 02:42:44,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:42:44,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2019-11-26 02:42:44,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:44,243 INFO L225 Difference]: With dead ends: 1363 [2019-11-26 02:42:44,243 INFO L226 Difference]: Without dead ends: 1174 [2019-11-26 02:42:44,245 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:42:44,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2019-11-26 02:42:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1174. [2019-11-26 02:42:44,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2019-11-26 02:42:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 3882 transitions. [2019-11-26 02:42:44,289 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 3882 transitions. Word has length 37 [2019-11-26 02:42:44,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:44,290 INFO L462 AbstractCegarLoop]: Abstraction has 1174 states and 3882 transitions. [2019-11-26 02:42:44,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:42:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 3882 transitions. [2019-11-26 02:42:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:42:44,293 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:44,294 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:44,294 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:44,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:44,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1398658812, now seen corresponding path program 1 times [2019-11-26 02:42:44,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:44,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706644527] [2019-11-26 02:42:44,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:44,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:44,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706644527] [2019-11-26 02:42:44,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:44,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:42:44,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570801271] [2019-11-26 02:42:44,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:42:44,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:44,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:42:44,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:42:44,426 INFO L87 Difference]: Start difference. First operand 1174 states and 3882 transitions. Second operand 6 states. [2019-11-26 02:42:44,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:44,529 INFO L93 Difference]: Finished difference Result 1903 states and 6303 transitions. [2019-11-26 02:42:44,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:42:44,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-11-26 02:42:44,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:44,539 INFO L225 Difference]: With dead ends: 1903 [2019-11-26 02:42:44,539 INFO L226 Difference]: Without dead ends: 1066 [2019-11-26 02:42:44,540 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:42:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2019-11-26 02:42:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2019-11-26 02:42:44,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2019-11-26 02:42:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3498 transitions. [2019-11-26 02:42:44,576 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3498 transitions. Word has length 38 [2019-11-26 02:42:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:44,577 INFO L462 AbstractCegarLoop]: Abstraction has 1066 states and 3498 transitions. [2019-11-26 02:42:44,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:42:44,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3498 transitions. [2019-11-26 02:42:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:42:44,580 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:44,580 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:44,580 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:44,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:44,580 INFO L82 PathProgramCache]: Analyzing trace with hash -856614336, now seen corresponding path program 2 times [2019-11-26 02:42:44,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:44,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463456414] [2019-11-26 02:42:44,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:44,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463456414] [2019-11-26 02:42:44,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:44,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:42:44,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374476770] [2019-11-26 02:42:44,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:42:44,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:44,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:42:44,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:42:44,778 INFO L87 Difference]: Start difference. First operand 1066 states and 3498 transitions. Second operand 8 states. [2019-11-26 02:42:44,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:44,995 INFO L93 Difference]: Finished difference Result 2407 states and 8022 transitions. [2019-11-26 02:42:44,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-26 02:42:44,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-11-26 02:42:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:45,004 INFO L225 Difference]: With dead ends: 2407 [2019-11-26 02:42:45,005 INFO L226 Difference]: Without dead ends: 1177 [2019-11-26 02:42:45,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-11-26 02:42:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2019-11-26 02:42:45,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1015. [2019-11-26 02:42:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2019-11-26 02:42:45,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 3330 transitions. [2019-11-26 02:42:45,036 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 3330 transitions. Word has length 38 [2019-11-26 02:42:45,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:45,037 INFO L462 AbstractCegarLoop]: Abstraction has 1015 states and 3330 transitions. [2019-11-26 02:42:45,037 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:42:45,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 3330 transitions. [2019-11-26 02:42:45,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:42:45,040 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:45,041 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:45,041 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:45,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:45,041 INFO L82 PathProgramCache]: Analyzing trace with hash -494596252, now seen corresponding path program 3 times [2019-11-26 02:42:45,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:45,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766269945] [2019-11-26 02:42:45,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:45,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766269945] [2019-11-26 02:42:45,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:45,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:42:45,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820608167] [2019-11-26 02:42:45,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:42:45,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:45,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:42:45,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:42:45,207 INFO L87 Difference]: Start difference. First operand 1015 states and 3330 transitions. Second operand 7 states. [2019-11-26 02:42:45,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:45,325 INFO L93 Difference]: Finished difference Result 1537 states and 5133 transitions. [2019-11-26 02:42:45,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:42:45,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-26 02:42:45,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:45,337 INFO L225 Difference]: With dead ends: 1537 [2019-11-26 02:42:45,337 INFO L226 Difference]: Without dead ends: 1003 [2019-11-26 02:42:45,337 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:42:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-11-26 02:42:45,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2019-11-26 02:42:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-11-26 02:42:45,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 3300 transitions. [2019-11-26 02:42:45,367 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 3300 transitions. Word has length 38 [2019-11-26 02:42:45,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:45,371 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 3300 transitions. [2019-11-26 02:42:45,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:42:45,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 3300 transitions. [2019-11-26 02:42:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:42:45,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:45,374 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:45,375 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:45,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:45,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1846013888, now seen corresponding path program 4 times [2019-11-26 02:42:45,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:45,376 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23822306] [2019-11-26 02:42:45,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:45,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23822306] [2019-11-26 02:42:45,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:45,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:42:45,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195361124] [2019-11-26 02:42:45,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:42:45,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:45,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:42:45,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:42:45,515 INFO L87 Difference]: Start difference. First operand 1003 states and 3300 transitions. Second operand 8 states. [2019-11-26 02:42:45,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:45,646 INFO L93 Difference]: Finished difference Result 1624 states and 5406 transitions. [2019-11-26 02:42:45,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:42:45,647 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2019-11-26 02:42:45,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:45,655 INFO L225 Difference]: With dead ends: 1624 [2019-11-26 02:42:45,655 INFO L226 Difference]: Without dead ends: 931 [2019-11-26 02:42:45,655 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:42:45,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2019-11-26 02:42:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2019-11-26 02:42:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-11-26 02:42:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 3054 transitions. [2019-11-26 02:42:45,682 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 3054 transitions. Word has length 38 [2019-11-26 02:42:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:45,682 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 3054 transitions. [2019-11-26 02:42:45,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:42:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 3054 transitions. [2019-11-26 02:42:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:42:45,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:42:45,684 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:42:45,685 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:42:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:42:45,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1207360626, now seen corresponding path program 5 times [2019-11-26 02:42:45,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:42:45,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340116031] [2019-11-26 02:42:45,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:42:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:42:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:42:45,812 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340116031] [2019-11-26 02:42:45,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:42:45,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:42:45,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861278584] [2019-11-26 02:42:45,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:42:45,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:42:45,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:42:45,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:42:45,814 INFO L87 Difference]: Start difference. First operand 931 states and 3054 transitions. Second operand 7 states. [2019-11-26 02:42:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:42:45,897 INFO L93 Difference]: Finished difference Result 769 states and 2460 transitions. [2019-11-26 02:42:45,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:42:45,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-11-26 02:42:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:42:45,898 INFO L225 Difference]: With dead ends: 769 [2019-11-26 02:42:45,898 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:42:45,899 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:42:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:42:45,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:42:45,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:42:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:42:45,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-11-26 02:42:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:42:45,900 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:42:45,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:42:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:42:45,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:42:45,902 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:42:45,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:42:45 BasicIcfg [2019-11-26 02:42:45,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:42:45,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:42:45,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:42:45,906 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:42:45,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:42:41" (3/4) ... [2019-11-26 02:42:45,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:42:45,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:42:45,930 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:42:45,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:42:45,931 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2019-11-26 02:42:45,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-26 02:42:45,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:42:45,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:42:45,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6c357525-b700-45f9-b033-1a0e22398745/bin/utaipan/witness.graphml [2019-11-26 02:42:45,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:42:45,982 INFO L168 Benchmark]: Toolchain (without parser) took 5487.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.4 MB). Free memory was 939.3 MB in the beginning and 984.6 MB in the end (delta: -45.2 MB). Peak memory consumption was 168.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:45,983 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:45,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:45,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:42:45,984 INFO L168 Benchmark]: Boogie Preprocessor took 30.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:45,984 INFO L168 Benchmark]: RCFGBuilder took 416.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:45,985 INFO L168 Benchmark]: TraceAbstraction took 4284.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 993.6 MB in the end (delta: 79.0 MB). Peak memory consumption was 159.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:45,985 INFO L168 Benchmark]: Witness Printer took 74.98 ms. Allocated memory is still 1.2 GB. Free memory was 993.6 MB in the beginning and 984.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:42:45,988 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 633.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 416.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4284.54 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 80.7 MB). Free memory was 1.1 GB in the beginning and 993.6 MB in the end (delta: 79.0 MB). Peak memory consumption was 159.7 MB. Max. memory is 11.5 GB. * Witness Printer took 74.98 ms. Allocated memory is still 1.2 GB. Free memory was 993.6 MB in the beginning and 984.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 111 locations, 1 error locations. Result: SAFE, OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 897 SDslu, 1675 SDs, 0 SdLazy, 217 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5471occurred 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: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 162 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 332 NumberOfCodeBlocks, 332 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 33285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...