./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe008_tso.opt.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_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe008_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/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 0d3762f2877a3647aa693794a8d1f3f7c20950bd .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:24:14,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:14,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:14,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:14,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:14,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:14,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:14,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:14,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:14,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:14,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:14,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:14,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:14,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:14,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:14,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:14,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:14,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:14,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:14,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:14,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:14,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:14,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:14,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:14,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:14,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:14,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:14,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:14,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:14,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:14,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:14,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:14,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:14,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:14,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:14,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:14,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:14,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:14,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:14,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:14,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:14,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:15,014 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:15,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:15,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:15,015 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:15,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:15,015 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:15,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:15,016 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:15,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:15,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:15,016 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:15,016 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:15,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:15,017 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:15,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:15,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:15,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:15,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:15,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:15,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:15,018 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:15,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:15,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:15,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:15,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:15,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:15,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:15,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:15,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:15,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:15,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:15,021 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:15,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:15,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:15,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:15,021 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_550a621f-6a31-4ec3-9dee-41bc6eea4067/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 -> 0d3762f2877a3647aa693794a8d1f3f7c20950bd [2019-10-22 11:24:15,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:15,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:15,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:15,081 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:15,081 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:15,082 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe008_tso.opt.i [2019-10-22 11:24:15,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/data/0a53e80bb/70a94c91022e4118a0aef84d18d12581/FLAG52e0232de [2019-10-22 11:24:15,618 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:15,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/sv-benchmarks/c/pthread-wmm/safe008_tso.opt.i [2019-10-22 11:24:15,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/data/0a53e80bb/70a94c91022e4118a0aef84d18d12581/FLAG52e0232de [2019-10-22 11:24:15,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/data/0a53e80bb/70a94c91022e4118a0aef84d18d12581 [2019-10-22 11:24:15,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:15,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:15,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:15,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:15,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:15,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:15" (1/1) ... [2019-10-22 11:24:15,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f84e9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:15, skipping insertion in model container [2019-10-22 11:24:15,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:15" (1/1) ... [2019-10-22 11:24:15,663 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:15,699 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:16,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:16,173 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:16,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:16,279 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16 WrapperNode [2019-10-22 11:24:16,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:16,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:16,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:16,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:16,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:16,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:16,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:16,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:16,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... [2019-10-22 11:24:16,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:16,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:16,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:16,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:16,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/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 11:24:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:24:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:24:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:16,399 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:24:16,399 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:24:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:24:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:24:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:24:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:24:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:24:16,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:16,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:16,402 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 11:24:16,643 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:16,644 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:24:16,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:16 BoogieIcfgContainer [2019-10-22 11:24:16,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:16,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:16,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:16,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:16,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:15" (1/3) ... [2019-10-22 11:24:16,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3789dd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:16, skipping insertion in model container [2019-10-22 11:24:16,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:16" (2/3) ... [2019-10-22 11:24:16,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3789dd52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:16, skipping insertion in model container [2019-10-22 11:24:16,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:16" (3/3) ... [2019-10-22 11:24:16,653 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2019-10-22 11:24:16,714 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,714 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,714 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,715 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,715 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,715 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,717 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,717 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,719 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,719 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,720 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,720 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,720 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,720 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,727 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,727 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,727 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:16,756 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:24:16,756 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:16,766 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:16,777 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:16,796 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:16,797 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:16,797 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:16,797 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:16,797 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:16,797 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:16,797 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:16,798 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:16,807 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 53 transitions [2019-10-22 11:24:16,967 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-10-22 11:24:16,969 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-10-22 11:24:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:24:16,987 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:16,987 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] [2019-10-22 11:24:16,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:16,994 INFO L82 PathProgramCache]: Analyzing trace with hash 745223180, now seen corresponding path program 1 times [2019-10-22 11:24:17,003 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:17,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938520533] [2019-10-22 11:24:17,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:17,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:17,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:17,301 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 11:24:17,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938520533] [2019-10-22 11:24:17,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:17,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:17,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774463002] [2019-10-22 11:24:17,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:17,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:17,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:17,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:17,324 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-10-22 11:24:17,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:17,423 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-10-22 11:24:17,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:17,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-22 11:24:17,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:17,450 INFO L225 Difference]: With dead ends: 2493 [2019-10-22 11:24:17,450 INFO L226 Difference]: Without dead ends: 1128 [2019-10-22 11:24:17,452 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 11:24:17,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-22 11:24:17,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-10-22 11:24:17,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-10-22 11:24:17,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-10-22 11:24:17,605 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-10-22 11:24:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:17,605 INFO L462 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-10-22 11:24:17,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:17,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-10-22 11:24:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:24:17,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:17,610 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 11:24:17,610 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:17,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:17,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1964418814, now seen corresponding path program 1 times [2019-10-22 11:24:17,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:17,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260153486] [2019-10-22 11:24:17,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:17,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:17,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:17,785 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 11:24:17,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260153486] [2019-10-22 11:24:17,785 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:17,785 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:17,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749128887] [2019-10-22 11:24:17,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:17,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:17,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:17,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:17,788 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-10-22 11:24:17,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:17,882 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-10-22 11:24:17,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:17,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 11:24:17,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:17,889 INFO L225 Difference]: With dead ends: 1168 [2019-10-22 11:24:17,889 INFO L226 Difference]: Without dead ends: 1044 [2019-10-22 11:24:17,890 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 11:24:17,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-10-22 11:24:17,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-10-22 11:24:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-10-22 11:24:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-10-22 11:24:17,927 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-10-22 11:24:17,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:17,928 INFO L462 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-10-22 11:24:17,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-10-22 11:24:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:24:17,930 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:17,931 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 11:24:17,931 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:17,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:17,931 INFO L82 PathProgramCache]: Analyzing trace with hash -109699052, now seen corresponding path program 1 times [2019-10-22 11:24:17,931 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:17,932 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564060759] [2019-10-22 11:24:17,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:17,932 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:17,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:18,090 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 11:24:18,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564060759] [2019-10-22 11:24:18,091 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:18,091 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:24:18,091 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702767921] [2019-10-22 11:24:18,092 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:18,092 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:18,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:18,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:18,092 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-10-22 11:24:18,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:18,182 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-10-22 11:24:18,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:18,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 11:24:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:18,187 INFO L225 Difference]: With dead ends: 820 [2019-10-22 11:24:18,188 INFO L226 Difference]: Without dead ends: 708 [2019-10-22 11:24:18,188 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 11:24:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-22 11:24:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-10-22 11:24:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-22 11:24:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-10-22 11:24:18,214 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-10-22 11:24:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:18,214 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-10-22 11:24:18,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-10-22 11:24:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:24:18,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:18,217 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 11:24:18,217 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:18,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:18,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1147902230, now seen corresponding path program 1 times [2019-10-22 11:24:18,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:18,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546173146] [2019-10-22 11:24:18,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:18,218 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:18,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:18,334 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 11:24:18,335 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546173146] [2019-10-22 11:24:18,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:18,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:24:18,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100515487] [2019-10-22 11:24:18,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:18,336 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:18,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:18,339 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 6 states. [2019-10-22 11:24:18,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:18,434 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2019-10-22 11:24:18,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:18,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 11:24:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:18,438 INFO L225 Difference]: With dead ends: 1108 [2019-10-22 11:24:18,439 INFO L226 Difference]: Without dead ends: 592 [2019-10-22 11:24:18,439 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:24:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-10-22 11:24:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2019-10-22 11:24:18,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-10-22 11:24:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2019-10-22 11:24:18,461 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2019-10-22 11:24:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:18,461 INFO L462 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2019-10-22 11:24:18,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2019-10-22 11:24:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:24:18,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:18,464 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 11:24:18,464 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:18,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:18,465 INFO L82 PathProgramCache]: Analyzing trace with hash -544429550, now seen corresponding path program 2 times [2019-10-22 11:24:18,466 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:18,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880809005] [2019-10-22 11:24:18,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:18,468 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:18,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:18,606 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 11:24:18,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880809005] [2019-10-22 11:24:18,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:18,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:24:18,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178508437] [2019-10-22 11:24:18,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:24:18,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:18,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:24:18,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:18,608 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 7 states. [2019-10-22 11:24:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:18,741 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2019-10-22 11:24:18,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:18,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 11:24:18,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:18,746 INFO L225 Difference]: With dead ends: 976 [2019-10-22 11:24:18,747 INFO L226 Difference]: Without dead ends: 556 [2019-10-22 11:24:18,747 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 11:24:18,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-22 11:24:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2019-10-22 11:24:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-10-22 11:24:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2019-10-22 11:24:18,768 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2019-10-22 11:24:18,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:18,769 INFO L462 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2019-10-22 11:24:18,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:24:18,769 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2019-10-22 11:24:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:24:18,770 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:18,771 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 11:24:18,771 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:18,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:18,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1878466138, now seen corresponding path program 3 times [2019-10-22 11:24:18,772 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:18,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950032494] [2019-10-22 11:24:18,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:18,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:18,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:18,878 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 11:24:18,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950032494] [2019-10-22 11:24:18,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:18,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:24:18,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059601513] [2019-10-22 11:24:18,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:24:18,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:18,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:24:18,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:18,880 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2019-10-22 11:24:18,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:18,969 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2019-10-22 11:24:18,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:18,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 11:24:18,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:18,970 INFO L225 Difference]: With dead ends: 428 [2019-10-22 11:24:18,970 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:24:18,971 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 11:24:18,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:24:18,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:24:18,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:24:18,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:24:18,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-10-22 11:24:18,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:18,972 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:24:18,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:24:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:24:18,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:24:18,975 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:24:18,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:18 BasicIcfg [2019-10-22 11:24:18,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:18,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:18,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:18,979 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:18,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:16" (3/4) ... [2019-10-22 11:24:18,983 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:24:18,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:24:18,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:24:18,992 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:24:18,997 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:24:18,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:24:19,041 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_550a621f-6a31-4ec3-9dee-41bc6eea4067/bin/utaipan/witness.graphml [2019-10-22 11:24:19,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:19,046 INFO L168 Benchmark]: Toolchain (without parser) took 3397.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -127.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:19,046 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 11:24:19,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:19,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.33 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 11:24:19,047 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 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 11:24:19,048 INFO L168 Benchmark]: RCFGBuilder took 300.33 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 11:24:19,048 INFO L168 Benchmark]: TraceAbstraction took 2332.32 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:19,049 INFO L168 Benchmark]: Witness Printer took 65.16 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:19,057 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 631.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.33 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 21.19 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 300.33 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 2332.32 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * Witness Printer took 65.16 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: 1.7 MB). Peak memory consumption was 1.7 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, 71 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 326 SDtfs, 414 SDslu, 806 SDs, 0 SdLazy, 101 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16334 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...