./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_pso.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_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/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 7802bef2c95a22ebea14f7e06037334e69712166 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:21:48,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:48,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:48,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:48,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:48,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:48,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:48,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:48,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:48,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:48,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:48,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:48,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:48,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:48,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:48,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:48,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:48,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:48,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:48,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:48,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:48,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:48,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:48,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:48,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:48,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:48,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:48,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:48,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:48,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:48,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:48,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:48,816 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:48,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:48,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:48,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:48,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:48,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:48,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:48,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:48,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:48,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:21:48,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:48,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:48,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:48,833 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:48,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:48,833 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:48,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:21:48,834 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:48,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:48,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:21:48,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:21:48,834 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:48,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:48,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:48,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:21:48,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:48,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:48,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:48,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:48,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:48,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:48,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:48,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:48,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:48,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:48,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:48,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:48,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:48,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:48,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:48,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:48,838 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:21:48,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:21:48,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:48,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:48,839 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_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/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 -> 7802bef2c95a22ebea14f7e06037334e69712166 [2019-10-22 11:21:48,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:48,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:48,877 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:48,878 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:48,878 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:48,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i [2019-10-22 11:21:48,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/data/c90b451c9/7727e439efa3481996fbde3bc7d9153d/FLAGa8bfb504a [2019-10-22 11:21:49,359 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:49,360 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i [2019-10-22 11:21:49,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/data/c90b451c9/7727e439efa3481996fbde3bc7d9153d/FLAGa8bfb504a [2019-10-22 11:21:49,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/data/c90b451c9/7727e439efa3481996fbde3bc7d9153d [2019-10-22 11:21:49,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:49,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:49,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:49,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:49,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:49,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:49,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0c4c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49, skipping insertion in model container [2019-10-22 11:21:49,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:49,404 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:49,440 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:49,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:49,835 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:49,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:49,949 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:49,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49 WrapperNode [2019-10-22 11:21:49,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:49,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:49,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:49,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:49,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:49,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:49,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:49,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:49,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:49,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:50,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... [2019-10-22 11:21:50,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:50,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:50,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:50,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:50,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/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 11:21:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:21:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:21:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:21:50,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:21:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:21:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:21:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:21:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:21:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:21:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:21:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:21:50,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:50,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:50,089 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 11:21:50,421 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:50,422 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:21:50,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:50 BoogieIcfgContainer [2019-10-22 11:21:50,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:50,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:50,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:50,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:50,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:49" (1/3) ... [2019-10-22 11:21:50,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9d6d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:50, skipping insertion in model container [2019-10-22 11:21:50,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:49" (2/3) ... [2019-10-22 11:21:50,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9d6d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:50, skipping insertion in model container [2019-10-22 11:21:50,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:50" (3/3) ... [2019-10-22 11:21:50,431 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2019-10-22 11:21:50,473 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,474 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,474 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,474 WARN L315 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,475 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,475 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,475 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,476 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,476 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,476 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,476 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,477 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,477 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,477 WARN L315 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,478 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,478 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,478 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,478 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,479 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,479 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,479 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,479 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,480 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,480 WARN L315 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,480 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,480 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,480 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,482 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,482 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,483 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:21:50,497 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:21:50,498 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:50,507 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:50,517 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:50,536 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:50,537 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:50,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:50,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:50,537 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:50,537 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:50,537 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:50,537 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:50,547 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 54 transitions [2019-10-22 11:21:50,706 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2019-10-22 11:21:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2019-10-22 11:21:50,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:21:50,733 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:50,734 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 11:21:50,736 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:50,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:50,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1011209124, now seen corresponding path program 1 times [2019-10-22 11:21:50,753 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:50,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493484627] [2019-10-22 11:21:50,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:50,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,068 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 11:21:51,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493484627] [2019-10-22 11:21:51,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:21:51,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577227524] [2019-10-22 11:21:51,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:21:51,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:21:51,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:21:51,091 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2019-10-22 11:21:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,191 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2019-10-22 11:21:51,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:21:51,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-10-22 11:21:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,216 INFO L225 Difference]: With dead ends: 2494 [2019-10-22 11:21:51,217 INFO L226 Difference]: Without dead ends: 1129 [2019-10-22 11:21:51,218 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 11:21:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2019-10-22 11:21:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2019-10-22 11:21:51,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2019-10-22 11:21:51,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2019-10-22 11:21:51,318 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2019-10-22 11:21:51,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,318 INFO L462 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2019-10-22 11:21:51,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:21:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2019-10-22 11:21:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:21:51,322 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,322 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 11:21:51,323 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1253730034, now seen corresponding path program 1 times [2019-10-22 11:21:51,323 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,323 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322829212] [2019-10-22 11:21:51,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,324 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,446 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 11:21:51,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322829212] [2019-10-22 11:21:51,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,446 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:21:51,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071747961] [2019-10-22 11:21:51,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:21:51,449 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:21:51,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:21:51,452 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2019-10-22 11:21:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,545 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2019-10-22 11:21:51,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:21:51,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-10-22 11:21:51,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,551 INFO L225 Difference]: With dead ends: 1169 [2019-10-22 11:21:51,551 INFO L226 Difference]: Without dead ends: 1045 [2019-10-22 11:21:51,552 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 11:21:51,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-10-22 11:21:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2019-10-22 11:21:51,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2019-10-22 11:21:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2019-10-22 11:21:51,588 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2019-10-22 11:21:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,589 INFO L462 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2019-10-22 11:21:51,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:21:51,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2019-10-22 11:21:51,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 11:21:51,592 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,592 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 11:21:51,592 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2002113598, now seen corresponding path program 1 times [2019-10-22 11:21:51,593 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,593 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440003165] [2019-10-22 11:21:51,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,593 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:51,717 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 11:21:51,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440003165] [2019-10-22 11:21:51,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:51,718 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:21:51,718 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423399633] [2019-10-22 11:21:51,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:21:51,719 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:51,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:21:51,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:21:51,720 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2019-10-22 11:21:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:51,864 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2019-10-22 11:21:51,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:51,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-10-22 11:21:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:51,868 INFO L225 Difference]: With dead ends: 821 [2019-10-22 11:21:51,868 INFO L226 Difference]: Without dead ends: 709 [2019-10-22 11:21:51,868 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:21:51,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-10-22 11:21:51,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2019-10-22 11:21:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-22 11:21:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2019-10-22 11:21:51,890 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2019-10-22 11:21:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:51,890 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2019-10-22 11:21:51,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:21:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2019-10-22 11:21:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:51,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:51,892 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 11:21:51,893 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:51,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:51,893 INFO L82 PathProgramCache]: Analyzing trace with hash 125829688, now seen corresponding path program 1 times [2019-10-22 11:21:51,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:51,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560926933] [2019-10-22 11:21:51,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:51,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,052 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 11:21:52,053 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560926933] [2019-10-22 11:21:52,053 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:52,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:21:52,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96487717] [2019-10-22 11:21:52,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:21:52,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:52,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:21:52,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:21:52,055 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 7 states. [2019-10-22 11:21:52,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:52,176 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2019-10-22 11:21:52,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:52,176 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-10-22 11:21:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:52,180 INFO L225 Difference]: With dead ends: 1109 [2019-10-22 11:21:52,180 INFO L226 Difference]: Without dead ends: 593 [2019-10-22 11:21:52,180 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 11:21:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-22 11:21:52,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-10-22 11:21:52,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-10-22 11:21:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2019-10-22 11:21:52,203 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2019-10-22 11:21:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:52,204 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2019-10-22 11:21:52,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:21:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2019-10-22 11:21:52,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:52,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:52,206 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 11:21:52,207 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:52,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:52,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1476217140, now seen corresponding path program 2 times [2019-10-22 11:21:52,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:52,208 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177418314] [2019-10-22 11:21:52,209 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:52,209 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:52,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,361 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 11:21:52,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177418314] [2019-10-22 11:21:52,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:52,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:21:52,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057579052] [2019-10-22 11:21:52,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:52,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:52,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:52,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:52,363 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 8 states. [2019-10-22 11:21:52,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:52,474 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2019-10-22 11:21:52,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:52,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-10-22 11:21:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:52,478 INFO L225 Difference]: With dead ends: 977 [2019-10-22 11:21:52,478 INFO L226 Difference]: Without dead ends: 557 [2019-10-22 11:21:52,479 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 11:21:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-22 11:21:52,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2019-10-22 11:21:52,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2019-10-22 11:21:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2019-10-22 11:21:52,506 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2019-10-22 11:21:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:52,507 INFO L462 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2019-10-22 11:21:52,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2019-10-22 11:21:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-22 11:21:52,509 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:52,509 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 11:21:52,510 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:52,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:52,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1900844242, now seen corresponding path program 3 times [2019-10-22 11:21:52,510 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:21:52,511 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835449577] [2019-10-22 11:21:52,511 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:52,511 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:21:52,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:21:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:52,674 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 11:21:52,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835449577] [2019-10-22 11:21:52,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:52,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 11:21:52,675 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522159838] [2019-10-22 11:21:52,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:21:52,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:21:52,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:21:52,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:21:52,676 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 8 states. [2019-10-22 11:21:52,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:52,766 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2019-10-22 11:21:52,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:52,766 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-10-22 11:21:52,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:52,766 INFO L225 Difference]: With dead ends: 429 [2019-10-22 11:21:52,767 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:52,767 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 11:21:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:52,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-10-22 11:21:52,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:52,768 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:52,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:21:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:52,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:52,771 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:21:52,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:52 BasicIcfg [2019-10-22 11:21:52,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:52,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:52,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:52,774 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:52,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:50" (3/4) ... [2019-10-22 11:21:52,778 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:52,787 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:21:52,787 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:21:52,787 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:21:52,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:21:52,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:52,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fa56d9af-2bd9-497b-9e18-b57c9c0efd23/bin/utaipan/witness.graphml [2019-10-22 11:21:52,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:52,841 INFO L168 Benchmark]: Toolchain (without parser) took 3452.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.2 MB in the beginning and 828.4 MB in the end (delta: 110.7 MB). Peak memory consumption was 273.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,841 INFO L168 Benchmark]: CDTParser took 0.17 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 11:21:52,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.75 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 11:21:52,842 INFO L168 Benchmark]: Boogie Preprocessor took 24.06 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 11:21:52,843 INFO L168 Benchmark]: RCFGBuilder took 404.92 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,843 INFO L168 Benchmark]: TraceAbstraction took 2349.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.4 MB in the end (delta: 265.8 MB). Peak memory consumption was 265.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:52,843 INFO L168 Benchmark]: Witness Printer took 64.83 ms. Allocated memory is still 1.2 GB. Free memory is still 828.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:52,857 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 560.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.75 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 24.06 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 404.92 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2349.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.4 MB in the end (delta: 265.8 MB). Peak memory consumption was 265.8 MB. Max. memory is 11.5 GB. * Witness Printer took 64.83 ms. Allocated memory is still 1.2 GB. Free memory is still 828.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 72 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, 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, 0.7s 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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...