./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin001_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_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/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 d005e0beebfe42b5bb1c894dd4e79359e20d910a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:21:05,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:05,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:05,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:05,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:05,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:05,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:05,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:05,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:05,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:05,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:05,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:05,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:05,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:05,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:05,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:05,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:05,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:05,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:05,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:05,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:05,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:05,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:05,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:05,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:05,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:05,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:05,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:05,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:05,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:05,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:05,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:05,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:05,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:05,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:05,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:05,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:05,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:05,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:05,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:05,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:05,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:05,820 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:05,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:05,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:05,821 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:05,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:05,822 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:05,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:05,822 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:05,822 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:05,822 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:05,822 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:05,823 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:05,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:05,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:05,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:05,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:05,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:05,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:05,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:05,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:05,825 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:05,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:05,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:05,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:05,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:05,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:05,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:05,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:05,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:05,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:05,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:05,827 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:05,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:05,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:05,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:05,828 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_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/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 -> d005e0beebfe42b5bb1c894dd4e79359e20d910a [2019-10-22 11:21:05,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:05,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:05,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:05,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:05,876 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:05,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2019-10-22 11:21:05,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/data/bb4c4ca71/2285978ccaf94a93853d05187223bc4e/FLAG5bdf24a0c [2019-10-22 11:21:06,367 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:06,368 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/sv-benchmarks/c/pthread-wmm/thin001_tso.oepc.i [2019-10-22 11:21:06,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/data/bb4c4ca71/2285978ccaf94a93853d05187223bc4e/FLAG5bdf24a0c [2019-10-22 11:21:06,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/data/bb4c4ca71/2285978ccaf94a93853d05187223bc4e [2019-10-22 11:21:06,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:06,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:06,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:06,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:06,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:06,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:06" (1/1) ... [2019-10-22 11:21:06,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6677ffb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:06, skipping insertion in model container [2019-10-22 11:21:06,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:06" (1/1) ... [2019-10-22 11:21:06,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:06,768 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:07,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:07,195 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:07,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:07,308 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:07,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07 WrapperNode [2019-10-22 11:21:07,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:07,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:07,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:07,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:07,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:07,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:07,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:07,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:07,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... [2019-10-22 11:21:07,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:07,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:07,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:07,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:07,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/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 11:21:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:21:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:21:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:21:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:21:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:21:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:21:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:21:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:21:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:21:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:07,434 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 11:21:07,763 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:07,763 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:21:07,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:07 BoogieIcfgContainer [2019-10-22 11:21:07,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:07,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:07,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:07,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:07,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:06" (1/3) ... [2019-10-22 11:21:07,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abb9a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:07, skipping insertion in model container [2019-10-22 11:21:07,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:07" (2/3) ... [2019-10-22 11:21:07,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abb9a8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:07, skipping insertion in model container [2019-10-22 11:21:07,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:07" (3/3) ... [2019-10-22 11:21:07,771 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2019-10-22 11:21:07,809 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,809 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,809 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,809 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,810 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,810 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,810 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,810 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,810 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,810 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,811 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,811 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,811 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,811 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,811 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,812 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,812 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,812 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,813 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,813 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,813 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,813 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,813 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,813 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,814 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,814 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,814 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,814 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,814 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,814 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:07,824 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:21:07,824 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:07,832 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:07,841 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:07,858 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:07,858 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:07,858 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:07,858 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:07,859 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:07,859 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:07,859 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:07,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:07,867 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions [2019-10-22 11:21:07,992 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-10-22 11:21:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-10-22 11:21:08,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:21:08,008 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,009 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 11:21:08,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:08,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1011209124, now seen corresponding path program 1 times [2019-10-22 11:21:08,023 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:08,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78324451] [2019-10-22 11:21:08,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:08,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:08,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,322 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 11:21:08,322 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78324451] [2019-10-22 11:21:08,323 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,323 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:08,324 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898351439] [2019-10-22 11:21:08,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:08,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:08,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:08,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:08,345 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-10-22 11:21:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:08,468 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-10-22 11:21:08,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:08,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:21:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:08,491 INFO L225 Difference]: With dead ends: 2494 [2019-10-22 11:21:08,491 INFO L226 Difference]: Without dead ends: 1129 [2019-10-22 11:21:08,493 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 11:21:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-10-22 11:21:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-10-22 11:21:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-10-22 11:21:08,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-10-22 11:21:08,639 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-10-22 11:21:08,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:08,639 INFO L462 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-10-22 11:21:08,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:08,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-10-22 11:21:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:21:08,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,644 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 11:21:08,644 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:08,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:08,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1253730034, now seen corresponding path program 1 times [2019-10-22 11:21:08,644 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:08,645 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045577930] [2019-10-22 11:21:08,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:08,645 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:08,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,747 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 11:21:08,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045577930] [2019-10-22 11:21:08,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,747 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:08,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910413523] [2019-10-22 11:21:08,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:08,749 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:08,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:08,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:08,750 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-10-22 11:21:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:08,807 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-10-22 11:21:08,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:08,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 11:21:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:08,813 INFO L225 Difference]: With dead ends: 1169 [2019-10-22 11:21:08,813 INFO L226 Difference]: Without dead ends: 1045 [2019-10-22 11:21:08,814 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 11:21:08,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-22 11:21:08,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-10-22 11:21:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-10-22 11:21:08,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-10-22 11:21:08,845 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-10-22 11:21:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:08,845 INFO L462 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-10-22 11:21:08,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:08,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-10-22 11:21:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:08,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:08,848 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 11:21:08,848 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:08,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:08,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2002113598, now seen corresponding path program 1 times [2019-10-22 11:21:08,849 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:08,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476806830] [2019-10-22 11:21:08,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:08,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:08,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:08,949 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 11:21:08,949 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476806830] [2019-10-22 11:21:08,949 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:08,949 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:08,949 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302783324] [2019-10-22 11:21:08,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:08,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:08,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:08,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:08,951 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-10-22 11:21:09,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,025 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-10-22 11:21:09,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:09,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 11:21:09,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,029 INFO L225 Difference]: With dead ends: 821 [2019-10-22 11:21:09,029 INFO L226 Difference]: Without dead ends: 709 [2019-10-22 11:21:09,030 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 11:21:09,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-10-22 11:21:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-10-22 11:21:09,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-22 11:21:09,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-10-22 11:21:09,052 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-10-22 11:21:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,052 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-10-22 11:21:09,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-10-22 11:21:09,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:09,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,054 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 11:21:09,055 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,055 INFO L82 PathProgramCache]: Analyzing trace with hash 125829688, now seen corresponding path program 1 times [2019-10-22 11:21:09,055 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:09,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061535579] [2019-10-22 11:21:09,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:09,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:09,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,160 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 11:21:09,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061535579] [2019-10-22 11:21:09,161 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,161 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:09,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339374464] [2019-10-22 11:21:09,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:09,161 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:09,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:09,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:09,162 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2019-10-22 11:21:09,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,268 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-10-22 11:21:09,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:09,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 11:21:09,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,272 INFO L225 Difference]: With dead ends: 1109 [2019-10-22 11:21:09,272 INFO L226 Difference]: Without dead ends: 593 [2019-10-22 11:21:09,273 INFO L600 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 [2019-10-22 11:21:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-22 11:21:09,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-22 11:21:09,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-22 11:21:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-10-22 11:21:09,292 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-10-22 11:21:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,292 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-10-22 11:21:09,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-10-22 11:21:09,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:09,294 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,294 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 11:21:09,294 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1476217140, now seen corresponding path program 2 times [2019-10-22 11:21:09,295 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:09,295 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351957709] [2019-10-22 11:21:09,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:09,295 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:09,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,476 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 11:21:09,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351957709] [2019-10-22 11:21:09,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,476 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:21:09,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901946839] [2019-10-22 11:21:09,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:09,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:09,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:09,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:09,478 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 8 states. [2019-10-22 11:21:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,590 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-10-22 11:21:09,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:09,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-10-22 11:21:09,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,594 INFO L225 Difference]: With dead ends: 977 [2019-10-22 11:21:09,594 INFO L226 Difference]: Without dead ends: 557 [2019-10-22 11:21:09,595 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-22 11:21:09,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-10-22 11:21:09,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-10-22 11:21:09,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-10-22 11:21:09,615 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-10-22 11:21:09,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,616 INFO L462 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-10-22 11:21:09,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-10-22 11:21:09,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:09,619 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:09,620 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 11:21:09,620 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:09,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:09,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1900844242, now seen corresponding path program 3 times [2019-10-22 11:21:09,621 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:09,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177131216] [2019-10-22 11:21:09,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:09,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:09,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:09,731 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 11:21:09,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177131216] [2019-10-22 11:21:09,731 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:09,731 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:21:09,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937723499] [2019-10-22 11:21:09,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:09,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:09,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:09,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:09,732 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2019-10-22 11:21:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:09,809 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-10-22 11:21:09,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:09,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-10-22 11:21:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:09,810 INFO L225 Difference]: With dead ends: 429 [2019-10-22 11:21:09,810 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:09,810 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:21:09,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:09,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:09,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:09,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-22 11:21:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:09,811 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:09,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:09,812 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:09,815 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:21:09,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:09 BasicIcfg [2019-10-22 11:21:09,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:09,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:09,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:09,818 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:09,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:07" (3/4) ... [2019-10-22 11:21:09,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:09,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:21:09,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:21:09,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:21:09,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:21:09,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:09,883 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a3f04f48-1f73-45d3-ad37-8e911ff0cfcc/bin/utaipan/witness.graphml [2019-10-22 11:21:09,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:09,886 INFO L168 Benchmark]: Toolchain (without parser) took 3183.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.1 MB in the beginning and 1.0 GB in the end (delta: -110.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:09,890 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:09,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:09,891 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.33 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 11:21:09,891 INFO L168 Benchmark]: Boogie Preprocessor took 22.89 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 11:21:09,891 INFO L168 Benchmark]: RCFGBuilder took 387.71 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:09,892 INFO L168 Benchmark]: TraceAbstraction took 2051.66 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: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:09,892 INFO L168 Benchmark]: Witness Printer took 66.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:09,895 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 605.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.33 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 22.89 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 387.71 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2051.66 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: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 323 SDtfs, 459 SDslu, 848 SDs, 0 SdLazy, 110 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s 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, 0 StatesRemovedByMinimization, 0 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, 19614 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...