./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/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 41d309fd9d7bc0af14d36c37d07c8d18fc383417 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:00,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:00,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:00,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:00,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:00,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:00,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:00,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:00,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:00,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:00,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:00,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:00,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:00,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:00,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:00,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:00,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:00,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:00,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:00,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:00,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:00,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:00,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:00,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:00,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:00,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:00,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:00,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:00,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:00,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:00,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:00,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:00,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:00,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:00,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:00,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:00,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:00,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:00,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:00,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:00,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:00,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:00,386 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:00,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:00,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:00,387 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:00,387 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:00,387 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:00,387 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:00,388 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:00,388 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:00,388 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:00,388 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:00,388 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:00,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:00,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:00,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:00,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:00,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:00,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:00,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:00,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:00,390 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:00,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:00,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:00,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:00,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:00,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:00,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:00,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:00,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:00,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:00,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:00,392 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:00,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:00,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:00,393 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:00,393 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/working_dir_235516dc-b0b5-496d-8316-476419455505/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 -> 41d309fd9d7bc0af14d36c37d07c8d18fc383417 [2019-10-22 11:21:00,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:00,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:00,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:00,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:00,446 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:00,446 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i [2019-10-22 11:21:00,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/data/570a0c3ba/d8350255920d46958f8757adb76ccae8/FLAGf7c076af8 [2019-10-22 11:21:00,970 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:00,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i [2019-10-22 11:21:00,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/data/570a0c3ba/d8350255920d46958f8757adb76ccae8/FLAGf7c076af8 [2019-10-22 11:21:01,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/data/570a0c3ba/d8350255920d46958f8757adb76ccae8 [2019-10-22 11:21:01,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:01,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:01,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:01,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:01,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:01,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cafd39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01, skipping insertion in model container [2019-10-22 11:21:01,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,491 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:01,541 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:02,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:02,023 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:02,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:02,119 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:02,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02 WrapperNode [2019-10-22 11:21:02,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:02,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:02,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:02,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:02,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:02,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:02,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:02,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:02,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... [2019-10-22 11:21:02,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:02,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:02,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:02,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:02,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/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 [2019-10-22 11:21:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:21:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:21:02,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:21:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:21:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:21:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:21:02,235 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:21:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:21:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:21:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:02,238 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 11:21:02,523 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:02,523 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:21:02,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:02 BoogieIcfgContainer [2019-10-22 11:21:02,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:02,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:02,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:02,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:02,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:01" (1/3) ... [2019-10-22 11:21:02,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4bf7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:02, skipping insertion in model container [2019-10-22 11:21:02,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:02" (2/3) ... [2019-10-22 11:21:02,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d4bf7f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:02, skipping insertion in model container [2019-10-22 11:21:02,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:02" (3/3) ... [2019-10-22 11:21:02,532 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2019-10-22 11:21:02,564 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,564 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,564 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,565 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,565 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,565 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,565 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,565 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,565 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,566 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,566 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,566 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,566 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,566 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,567 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,567 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,567 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,567 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,568 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,568 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,568 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,568 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,568 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,569 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,569 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,569 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,569 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,569 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,569 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,570 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:02,593 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:21:02,593 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:02,603 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:02,614 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:02,633 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:02,634 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:02,634 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:02,635 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:02,635 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:02,635 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:02,635 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:02,635 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:02,645 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions [2019-10-22 11:21:02,781 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-10-22 11:21:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-10-22 11:21:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:21:02,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:02,800 INFO L380 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] [2019-10-22 11:21:02,802 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:02,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:02,807 INFO L82 PathProgramCache]: Analyzing trace with hash -735775812, now seen corresponding path program 1 times [2019-10-22 11:21:02,816 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:02,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053962335] [2019-10-22 11:21:02,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:02,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:02,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:03,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:03,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053962335] [2019-10-22 11:21:03,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:03,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:03,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204361489] [2019-10-22 11:21:03,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:03,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:03,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:03,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:03,194 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-10-22 11:21:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:03,294 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-10-22 11:21:03,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:03,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:21:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:03,323 INFO L225 Difference]: With dead ends: 2494 [2019-10-22 11:21:03,323 INFO L226 Difference]: Without dead ends: 1129 [2019-10-22 11:21:03,328 INFO L600 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 [2019-10-22 11:21:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-10-22 11:21:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-10-22 11:21:03,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-10-22 11:21:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-10-22 11:21:03,469 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-10-22 11:21:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:03,470 INFO L462 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-10-22 11:21:03,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-10-22 11:21:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:21:03,474 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:03,475 INFO L380 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] [2019-10-22 11:21:03,475 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:03,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1344942524, now seen corresponding path program 1 times [2019-10-22 11:21:03,476 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:03,476 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553735649] [2019-10-22 11:21:03,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:03,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:03,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:03,599 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553735649] [2019-10-22 11:21:03,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:03,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:03,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786774302] [2019-10-22 11:21:03,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:03,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:03,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:03,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:03,602 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-10-22 11:21:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:03,661 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-10-22 11:21:03,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:03,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 11:21:03,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:03,666 INFO L225 Difference]: With dead ends: 1169 [2019-10-22 11:21:03,667 INFO L226 Difference]: Without dead ends: 1045 [2019-10-22 11:21:03,668 INFO L600 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 [2019-10-22 11:21:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-22 11:21:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-10-22 11:21:03,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-10-22 11:21:03,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-10-22 11:21:03,699 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-10-22 11:21:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:03,699 INFO L462 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-10-22 11:21:03,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:03,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-10-22 11:21:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:03,702 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:03,702 INFO L380 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] [2019-10-22 11:21:03,703 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:03,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:03,703 INFO L82 PathProgramCache]: Analyzing trace with hash 580195210, now seen corresponding path program 1 times [2019-10-22 11:21:03,703 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:03,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890988202] [2019-10-22 11:21:03,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:03,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:03,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:03,794 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890988202] [2019-10-22 11:21:03,794 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:03,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:03,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913260658] [2019-10-22 11:21:03,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:03,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:03,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:03,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:03,796 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-10-22 11:21:03,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:03,868 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-10-22 11:21:03,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:03,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 11:21:03,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:03,872 INFO L225 Difference]: With dead ends: 821 [2019-10-22 11:21:03,872 INFO L226 Difference]: Without dead ends: 709 [2019-10-22 11:21:03,873 INFO L600 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 [2019-10-22 11:21:03,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-10-22 11:21:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-10-22 11:21:03,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-22 11:21:03,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-10-22 11:21:03,894 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-10-22 11:21:03,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:03,894 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-10-22 11:21:03,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:03,894 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-10-22 11:21:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:03,896 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:03,896 INFO L380 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] [2019-10-22 11:21:03,897 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:03,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:03,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1488770432, now seen corresponding path program 1 times [2019-10-22 11:21:03,897 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:03,897 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375360314] [2019-10-22 11:21:03,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:03,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:03,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:04,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375360314] [2019-10-22 11:21:04,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:04,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:04,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010717277] [2019-10-22 11:21:04,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:04,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:04,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:04,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:04,061 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2019-10-22 11:21:04,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:04,204 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-10-22 11:21:04,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:04,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 11:21:04,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:04,208 INFO L225 Difference]: With dead ends: 1109 [2019-10-22 11:21:04,208 INFO L226 Difference]: Without dead ends: 645 [2019-10-22 11:21:04,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:04,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2019-10-22 11:21:04,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 629. [2019-10-22 11:21:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2019-10-22 11:21:04,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 1828 transitions. [2019-10-22 11:21:04,234 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 1828 transitions. Word has length 34 [2019-10-22 11:21:04,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:04,235 INFO L462 AbstractCegarLoop]: Abstraction has 629 states and 1828 transitions. [2019-10-22 11:21:04,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 1828 transitions. [2019-10-22 11:21:04,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:04,236 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:04,236 INFO L380 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] [2019-10-22 11:21:04,237 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:04,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:04,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1490039560, now seen corresponding path program 2 times [2019-10-22 11:21:04,237 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:04,237 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298706354] [2019-10-22 11:21:04,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:04,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:04,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:04,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298706354] [2019-10-22 11:21:04,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:04,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:04,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607188355] [2019-10-22 11:21:04,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:04,373 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:04,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:04,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:04,374 INFO L87 Difference]: Start difference. First operand 629 states and 1828 transitions. Second operand 7 states. [2019-10-22 11:21:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:04,514 INFO L93 Difference]: Finished difference Result 1029 states and 3052 transitions. [2019-10-22 11:21:04,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:04,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 11:21:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:04,519 INFO L225 Difference]: With dead ends: 1029 [2019-10-22 11:21:04,519 INFO L226 Difference]: Without dead ends: 593 [2019-10-22 11:21:04,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-22 11:21:04,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 577. [2019-10-22 11:21:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-22 11:21:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 1712 transitions. [2019-10-22 11:21:04,543 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 1712 transitions. Word has length 34 [2019-10-22 11:21:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:04,543 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 1712 transitions. [2019-10-22 11:21:04,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:04,544 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 1712 transitions. [2019-10-22 11:21:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:04,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:04,545 INFO L380 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] [2019-10-22 11:21:04,546 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:04,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:04,546 INFO L82 PathProgramCache]: Analyzing trace with hash -811085094, now seen corresponding path program 3 times [2019-10-22 11:21:04,546 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:04,546 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351083636] [2019-10-22 11:21:04,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:04,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:04,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:04,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351083636] [2019-10-22 11:21:04,682 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:04,682 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:04,682 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84252222] [2019-10-22 11:21:04,683 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:04,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:04,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:04,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:04,684 INFO L87 Difference]: Start difference. First operand 577 states and 1712 transitions. Second operand 7 states. [2019-10-22 11:21:04,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:04,792 INFO L93 Difference]: Finished difference Result 449 states and 1296 transitions. [2019-10-22 11:21:04,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:04,792 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 11:21:04,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:04,793 INFO L225 Difference]: With dead ends: 449 [2019-10-22 11:21:04,793 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:04,793 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:04,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:04,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:04,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-22 11:21:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:04,794 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:04,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:04,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:04,798 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:21:04,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:04 BasicIcfg [2019-10-22 11:21:04,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:04,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:04,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:04,800 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:04,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:02" (3/4) ... [2019-10-22 11:21:04,804 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:04,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:21:04,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:21:04,810 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:21:04,816 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:21:04,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:04,874 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_235516dc-b0b5-496d-8316-476419455505/bin/utaipan/witness.graphml [2019-10-22 11:21:04,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:04,876 INFO L168 Benchmark]: Toolchain (without parser) took 3404.02 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 228.1 MB). Free memory was 940.5 MB in the beginning and 1.2 GB in the end (delta: -275.2 MB). Peak memory consumption was 287.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,877 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:04,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.14 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. [2019-10-22 11:21:04,880 INFO L168 Benchmark]: Boogie Preprocessor took 21.22 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. [2019-10-22 11:21:04,880 INFO L168 Benchmark]: RCFGBuilder took 341.36 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: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,880 INFO L168 Benchmark]: TraceAbstraction took 2273.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.3 MB in the end (delta: 275.1 MB). Peak memory consumption was 275.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,881 INFO L168 Benchmark]: Witness Printer took 74.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 60.3 MB). Free memory was 834.3 MB in the beginning and 1.2 GB in the end (delta: -381.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,883 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 646.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.14 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 21.22 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. * RCFGBuilder took 341.36 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: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2273.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 834.3 MB in the end (delta: 275.1 MB). Peak memory consumption was 275.1 MB. Max. memory is 11.5 GB. * Witness Printer took 74.55 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 60.3 MB). Free memory was 834.3 MB in the beginning and 1.2 GB in the end (delta: -381.3 MB). Peak memory consumption was 13.5 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 7 procedures, 72 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 378 SDtfs, 431 SDslu, 1016 SDs, 0 SdLazy, 119 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 32 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17502 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...